GCTS Catalog

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GCTS 2010 CATALOGTable of Contents

About Us .................................................................................................................................................................................................... 3 Vision ......................................................................................................................................................................................................... 3 Mission Statement ..................................................................................................................................................................................... 3 Corporate Commitments ........................................................................................................................................................................... 3 About the Principals .................................................................................................................................................................................. 4 Company Products & Services .................................................................................................................................................................. 4

Rock Testing Systems ........................................................................................................... 5

Digital Point Load Testing System (PLT-100) ........................................................................................................................................... 6 Digital Point Load Testing System (PLT-110) ........................................................................................................................................... 7 Digital Rock Direct Shear System (RDS-100) ........................................................................................................................................... 8 Servo-Controlled Rock Direct Shear System (RDS-200) .......................................................................................................................... 9 Servo-Controlled Rock Direct Shear System (RDS-300) ........................................................................................................................ 10 Uniaxial Testing System (UCT-1000) ...................................................................................................................................................... 11 Rapid Triaxial Rock Testing System (RTR-1000) ................................................................................................................................... 12 Triaxial Rock Testing System (RTX-1000) .............................................................................................................................................. 13 Triaxial Rock Testing System (RTX-1500) .............................................................................................................................................. 14 Hydraulic Fracture Test System (HFRTC-100) ....................................................................................................................................... 15

Rock Testing Components .................................................................................................. 16

Rock Deformation Device (DEF-5000) .................................................................................................................................................... 17 Indirect Tension (Brazilian) Apparatus for Rocks (RIT-B) ....................................................................................................................... 18 Compression Frames (FRM4-1000) ........................................................................................................................................................ 19 Pressure Intensifier System (HPVC-070) ................................................................................................................................................ 20 Pressure Intensifier System (HPVC-140) ................................................................................................................................................ 21 Air/Oil Pressure Booster (HPC-070) ........................................................................................................................................................ 22 High Pressure Triaxial Cell (HTRX-020) ................................................................................................................................................. 23 High Pressure Triaxial Cell (HTRX-070) ................................................................................................................................................. 24 High Pressure Triaxial Cell (HTRX-070L) ............................................................................................................................................... 25 High Pressure Triaxial Cell (HTRX-140) ................................................................................................................................................. 26 High Pressure Triaxial Cell (HTRX-200) ................................................................................................................................................. 27 Heavy Duty Laboratory Coring Machine (RCD-200) ............................................................................................................................... 28 Pressure Controlled Coring Machine (RCD-250) .................................................................................................................................... 29 Specimen Grinder (RSG-200) ................................................................................................................................................................. 30 Specimen Flatness Gage (RFG-100) ...................................................................................................................................................... 31

Soil Testing Systems ........................................................................................................... 32

Servo Controlled Consolidation Apparatus (CRS-10) ............................................................................................................................. 33 Direct Shear Testing System for Soils (SDS-100) ................................................................................................................................... 34 Direct Shear Testing System for Soils and Asphalts (SDS-150) ............................................................................................................. 35 Servo-Controlled Simple Shear Testing System (SSH-100) ................................................................................................................... 36 Dynamic Hollow Cylinder Testing System (HCA-100) ............................................................................................................................ 37 Poly-Axial Test System (SPAX-2000) ..................................................................................................................................................... 38 Resilient Modulus and Asphalt Testing System (MRT-300) .................................................................................................................... 39 Resonant Column/ Torsional Shear Testing System (TSH-100 & TSH-200) .......................................................................................... 40 Pneumatic Soil Triaxial Testing System (STX-050) ................................................................................................................................ 41 Cyclic / Stress-Path Soil Triaxial System (STX) ...................................................................................................................................... 42 Frozen Soil Triaxial System (FSTX-100) ................................................................................................................................................. 43 Unsaturated Soil Triaxial Testing System (USTX-2000) ......................................................................................................................... 44 Soil-Water Characteristic Cell (SWC-150) .............................................................................................................................................. 45

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Soil Testing Components .................................................................................................... 46

Load Frame (FRM-10P) .......................................................................................................................................................................... 47 Load Frame (FRM-100) ........................................................................................................................................................................... 48 Soil Axial Deformation Device (DEF-6100) ............................................................................................................................................. 49 Soil Circumferential Deformation Device (DEF-SRCP) ........................................................................................................................... 50 Large-Scale Deformation Device (DEF-S1600) ...................................................................................................................................... 51 Soil Triaxial Cell (TRX) ............................................................................................................................................................................ 52 Unsaturated Soils Triaxial Double Cell (TRX-2C) ................................................................................................................................... 53 Large-Scale Soil Triaxial Cell (TRX-600) ................................................................................................................................................ 54 Controlled Gradient Consolidation Apparatus (TRX-CRX) ...................................................................................................................... 55 Diffused Air Flushing Device (DAF-200) ................................................................................................................................................. 56 Volume Change Device (VCD-400) ........................................................................................................................................................ 57 Pressure Control Panel (PCP-200) ......................................................................................................................................................... 58 Pressure Panel & Pressure Volume Controller (PCP-2000 & PVC-100 Series) ..................................................................................... 59 Fredlund Thermal Conductivity Sensor (FTC-100) ................................................................................................................................. 60

Asphalt, Concrete & Other Construction Materials .......................................................... 61 Servo-Pneumatic Asphalt Testing System (ATM-010)............................................................................................................................62

Servo-Hydraulic Asphalt Testing System (ATM-025) ..............................................................................................................................63

Resilient Modulus and Asphalt Testing System (MRT-300)....................................................................................................................64

Stand-Alone Beam Flexural Fatigue Apparatus (BFF-5) ........................................................................................................................65 Servo-Controlled Superpave Gyratory Compactor (GRC-20) ................................................................................................................. 66 Deformation Sensor Holder (IDT-DEF) ................................................................................................................................................... 67 Asphalt Coring Machine (ACD-150) ........................................................................................................................................................ 68 Specimen Lab Saw (RLS-100) ................................................................................................................................................................ 69 Dynamic Loading System (DLS-050) ...................................................................................................................................................... 70 Pull Out Test for Skin Friction and Rock Anchor Pullout Test (PFT-060) ................................................................................................ 71 Universal Testing Machine (UTM) ........................................................................................................................................................... 72

Testing Accessories ............................................................................................................ 73

LVDT Calibration Device (DCD-025) ....................................................................................................................................................... 74 Temperature Control System (TCS-100) ................................................................................................................................................ 75 Ultrasonic Velocity Test System (ULT-100) ............................................................................................................................................ 76 P & S Ultrasonic Sensors (ULT-SNR) ..................................................................................................................................................... 77 Seismic Down-Hole Testing System (SRV-100) ..................................................................................................................................... 78 Hydraulic Power Supply with Smart Controller (HPS) ............................................................................................................................. 79

Software & Electronics ........................................................................................................ 80

Advanced Computer Aided Testing Software (CATS-ADV) .................................................................................................................... 81 Direct Shear Software Module (CATS-DSH) ........................................................................................................................................... 82 Resilient Modulus Software (TRX-MRT) ................................................................................................................................................. 83 Soil Triaxial Software Module (CATS-TRX-SOIL) ................................................................................................................................... 84 Rock Triaxial Software Module (CATS-TRX-ROCK) ............................................................................................................................... 85 Resonant Column/Torsional Shear Module (CATS-RC) ......................................................................................................................... 86 Point Load Test Software (PntLoad) ....................................................................................................................................................... 87 Digital Signal Input and Control Unit (SCON-300) .................................................................................................................................. 88 Universal Digital Signal Conditioning and Control Unit (SCON-1500) .................................................................................................... 89 Universal Digital Signal Conditioning and Control Unit (SCON-2000) .................................................................................................... 90 Digital Servo Control Upgrade ................................................................................................................................................................. 91

Products Not Featured in this Catalog.... ........................................................................... 92

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About Us GCTS is a manufacturing company that provides solutions to research and productive activities through engineering, manufacturing

and installation of specialized systems

A GCTS system performs at the highest levels of reliability, providing efficient systems that satisfy customer needs and expectations We reach our corporative goals supported through our highly qualified professional team, excellent information systems and

infrastructure that allows satisfying the demands of our clients.

Vision

9 We are a company with international prestige that manufactures high tech equipment. 9 Our products and services provide a high added value that satisfies the necessities and expectations of our clients in any

market.

9 Our Company reaches new levels of competitive success in which to obtain benefit to our shareholders, our employees, our clients, and the communities in which we operate.

9 GCTS activities include Integral relationships with: o End users (universities, research centers and engineering companies) o Technological partners, suppliers and sub-contractors.

Mission Statement GCTS mission is to advance the state of the practice in materials testing while simplifying the equipment operation

Corporate Commitments 9 Quality Policy

o The satisfaction of our clients and the continuous improvement are the reasons of being of our company

9 Policy of Ethics o We are an institution with:

Integrity. Honest and responsible people.

9 Commitments With Our Professional Team o We have highly qualified professionals stimulated by their development and enterprising potential.

9 Continuous Improvement And Permanent Innovation o We continuously innovate and develop through research activities to design diverse equipment for new applications

that respond to the current and future market requirements

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About the Principals J. MANUEL PADILLA is the president of the company. He more than 20 years of experience in designing, fabricating, assembling, and setting up soil and rock testing systems. He has traveled the globe in setting up testing systems and training new clients to use them at more than 100 locations. As a Ph.D. in geotechnical engineering, he understands not only instrumentation and testing procedures, but also the application of the test results to engineering problems. In addition to being familiar with all the hardware components, including the signal conditioning and other electronics, he is also expert in software development and application. He is the primary creator of the software package used to drive the GCTS systems. WILLIAM N. HOUSTON is a senior consultant to the company. He has 40 years of teaching, research, and consulting experience (17 years at UC Berkeley and 23 years at Arizona State University) and is a registered professional civil engineer. His teaching and research have included a major component of laboratory experimental work and, as a university professor; he has taught thousands of students how to use soil testing equipment. His consulting work has ranged broadly across geotechnical engineering from soil testing laboratory design and set-up to soil property determination to slope stability, earthquake engineering, and unsaturated soil behavior. His experience qualifies him to judge not only the precision with which properties can be measured with soil testing apparatus but also the precision that is needed for application to engineering problems. SANDRA L. HOUSTON is a consultant to the company. She has 20 years of teaching, research, and consulting experience and is a registered professional civil engineer. Her teaching and research have emphasis in numerical methods and computer applications. She has taught hundreds of students how to develop and use software packages for geotechnical engineering applications. Her research and consulting have also involved unsaturated soil problems, especially fluid flow and collapsing soil behavior.

Company Products & Services Geotechnical Consulting and Testing Systems, LLC provides selection and design of laboratory and in-situ testing apparatus and software ranging from modification and adaptation of existing apparatus to the purchase of new closed-loop computer-controlled systems. The company manufactures a full line of computer-controlled testing systems with electro-mechanical, pneumatic or hydraulic loaders. Each system comes with a versatile software package which provides test control, data acquisition, data reduction, and graphing in one easy to learn Graphical User Interface. Testing capabilities include static and dynamic loading of soil, rock, and other construction materials. Advanced testing capabilities include hollow cylinder, simple shear, and poly-axial systems with optional upgrades for testing unsaturated soils. Dynamic tests include liquefaction, modulus, damping, resilient modulus, and ultrasonic velocity measurements. Other laboratory tests are also possible through the use of a general purpose multiple function generator and data acquisition that allows the user to design his/her own test procedures. The primary service of the company is testing system design and integration. The testing experience and background of the staff enable us to ensure that a testing system not only works at its final destination but can also be made to generate meaningful data. Among GCTS personnel and consultants are specialized engineers and technicians with a vast experience in instrumentation, electronics, mechanics, manufacturing and other testing equipment related fields. The company has a fully equipped machine shop.

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Rock Testing Systems

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Digital Point Load Testing System (PLT-100)

100 kN (22 kips) load capacity; larger capacities

available Compact, light design (< 15 kg ) Output display in SI or English units Digital output with 10 N (or 1 pound) resolution Automatic specimen size gauging Dual signal outputs to a computer or data recorder Software for fast and automatic testing Increases test production and minimizes

operational errors 110/220 VAC and 12 VDC operation Optional ultrasonic velocity point load platens Platens and frames are available to perform

Uniaxial, Brazilian, Hardness, and Ultrasonic tests

DESCRIPTION The GCTS Point Load Tester is an apparatus made of high-strength anodized-aluminum that incorporates digital technology to increase precision and ease of use while reducing its size and weight. The introduction of a pressure sensor to measure load provides a better accuracy at any load level eliminating the imprecision of traditional pressure gauges at low load ranges. The system has a digital display that continuously monitors applied load. An optional second display provides specimen size in mm (or inches). The maximum load is automatically stored and easily obtainable by pressing a button.

An advanced option for this system is the ultrasonic platens for the measurement of P-wave velocity. The P-wave velocity is a more rational method and gives a better correlation to strength than the point load index. The major advantage of the ultrasonic velocity option is that, as with the point load test, it does not require expensive specimen preparation. The P-wave velocity is measured during the point load test. Other options include: platens, triaxial cells, and frames for performing uniaxial and triaxial tests on small specimens. These options include software that captures the complete stress-strain curve and automatically calculates strength parameters.

SPECIFICATIONS Power: . . . . . . . . . . . . . . . . . . 12 VDC or 120-240 VAC (external) Max. Daylight Opening: . . . . . Vertical125 mm . . . . . . Horizontal100 mm Load Capacity: . . . . . . . . . . . .100 kN Stroke: . . . . . . . . . . . . . . . . . . 54 mm

SHIPPING Standard Weight: . . . . . . . . . . 27 kg (60 lbs) Standard Volume: . . . . . . . . . . 63 cm x 49 cm x 35 cm . . . . . . . . . . (25 x 19.5 x 13.8

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Digital Point Load Testing System (PLT-110)

100 kN (22 kips) load capacity; larger capacities available

Compact, light design (< 14 kg.) Output display in SI units Digital output with 10 N (or 1 pound) resolution Automatic specimen size gauging option Dual signal outputs to a computer or data recorder Software for fast and automatic testing Increases test production and minimizes

operational errors Internal battery operation Optional ultrasonic velocity point load platens Platens and cells are available to perform Triaxial,

Uniaxial and Brazilian tests

DESCRIPTION The GCTS Point Load Tester is an apparatus made of high-strength anodized-aluminum that incorporates digital technology to increase precision and ease of use while reducing its size and weight. The introduction of a pressure sensor to measure load provides a better accuracy at any load level eliminating the imprecision of traditional pressure gauges at low load ranges.

The system has a digital display that continuously monitors applied load. The maximum load is automatically stored and easily obtainable by pressing a button. Other options include: platens, triaxial cells, and frames for performing uniaxial and triaxial tests on small specimens. These options include software that captures the complete stress-strain curve and automatically calculates strength parameters.

SPECIFICATIONS Display: . . . . . . . . . . . . . Full 4-digit display calibrated in SI units (kN). Includes 40-segement bar graph around the display in % full scale Electrical: . . . . . . . . . . . . 3.6 V C-size lithium battery. Max. Daylight Opening: . . Vertical125 mm . . . Horizontal100 mm Load Capacity: . . . . . . . . . 100 kN Stroke: . . . . . . . . . . . . . . . .54 mm

SHIPPING Standard Weight: . . . . . . 26 kg (57 lbs) Standard Volume: . . . . . .81 cm x 51 cm x 32 cm . . . . . . (32 x 20 x 12.5)

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Digital Rock Direct Shear System (RDS-100)

Manual control of double acting (push/pull) 100 kN

(10 ton) shear load actuator with 25 mm stroke & 50 kN (5 ton) normal load capacity with 25 mm stroke

Normal load stiff reaction frame mounted on sliding bearings to minimize horizontal friction while keeping the normal load vertical throughout the full shear displacement

150 mm (6") inside diameter sample rings for specimens up to 150 mm high

Precise Digital Display with Peak Value Memory A/D Automatic Data Acquisition with USB interface Windows 98/NT/2000/XP software for automatic

data logging and reporting of direct shear tests with real time graphical display of test progress

Economically priced

Multy Stage Direct Shear Test

0

3

6

9

12

15

18

0 1 2 3 4 5 6 7

Shear Displcement, mm

Stre

ss, M

Pa

1

1.5

2

2.5

3

3.5

4

Dis

plac

emen

t, m

m

Shear Stress,

Normal Stress,

Normal Displacement

DESCRIPTION The GCTS Direct Shear System for Testing Rocks is a simple and inexpensive device for testing a wide range of rock specimen configurations. Cylindrical cores, cubes, prisms, and rock fragments can be used to determine the shear strength. This system features electronic sensors and digital displays to monitor the loads and deformations. A standard A/D automatic data acquisition with USB interface is included with the system to automatically log and reduces the test data. The included software program accepts inputs from the shear and normal load sensors, the shear deformation, and up to four normal deformation sensors (the software calculates automatically the average normal deformation). Two air/oil booster pumps operating from 800 kPa (100 psi) compressed air allow the user to easily set and maintain the normal load and the shear displacement rate. Pressure sensors are used to monitor the loads but load cells are also offered as an option. The shear pump includes a 4-way valve to easily reverse the loading direction. The air/oil booster pumps, digital displays, and all the control valves are set on an easy-to-use front panel housed in a metal cabinet. Specimens are cured within removable specimen rings and then drop inside the shear box allowing the preparation of multiple specimens using additional rings increasing test production. GCTS also offers a fully computer-controlled servo-hydraulic direct shear machine (see RDS-200)

SPECIFICATIONS Contact GCTS for full specifications

SHIPPING Volume: . . . . . . . . . 1.4 m3 Weight: . . . . . . . . . . 600 kg

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Servo-Controlled Rock Direct Shear System (RDS-200)

Closed loop servo control of double acting

(push/pull) 100 kN (10 ton) shear load actuator with 25 mm stroke and 50 kN (5 ton) normal load capacity with 25 mm stroke

Normal load stiff reaction frame mounted on sliding bearings to minimize horizontal friction while keeping the normal load vertical throughout the full shear displacement

150 mm (6") inside diameter sample rings for specimens up to 150 mm high

Software for automatic performance of direct shear tests with constant normal stress or normal stiffness

Real time graphical display of test progress. Other load capacities and specimen size

dimensions are available, including large-scale test systems for shear loads of up to 1,000 kN (100 ton) and specimen sizes up to 300 mm diameter or side

DESCRIPTION

The GCTS Rock Direct Shear System is a simple and inexpensive device for testing a wide range of rock specimen configurations. Cylindrical cores, cubes, prisms, and rock fragments can be used to determine the shear strength. This system features electro-hydraulic closed-loop digital servo control of the shear and normal loads for test automation. The included software program accepts inputs from the normal load sensor and up to four normal deformation sensors (the software calculates automatically the average normal deformation). Loads or deformations for both the shear and normal actuators can be prescribed for automatically performing advanced tests such as the Constant or Calculated Normal Stiffness Direct Shear Test.

Specimens are cured within removable specimen rings and then dropped inside the shear box allowing the preparation of multiple specimens using additional rings increasing test production.

Also available, as an alternative, is an economical Digital Direct Shear system driven with manual pumps.

SHIPPING Volume . . . . . . . . . . . . . . . . . 2.7 m3 Weight . . . . . . . . . . . . . . . . . 1,100 kg

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Servo-Controlled Rock Direct Shear System (RDS-300)

Closed loop servo control of double acting

(push/pull) 300 kN (30 ton) shear load actuator with 50 mm stroke and 300 kN (30 ton) normal load capacity with 100 mm stroke

Includes adjustable locking mechanism to prevent rotation of the top box in any one direction, two directions, or none (fixed so that no shear plane rotations are allowed)

Accepts 150 mm (6") diameter samples & 100 x 100 mm cubical specimens up to 150 mm high

Software for automatic performance of direct shear tests with constant normal stress or normal stiffness

Capable of performing unconfined or triaxial tests with optional hardware

Other load capacities and specimen size dimensions are available, including large-scale test systems for shear loads of up to 1,000 kN (100 ton) and specimen sizes up to 300 mm diameter or side

DESCRIPTION The GCTS Direct Shear System for Testing Rocks is a versatile device for testing a wide range of rock specimen configurations. Cylindrical cores, cubes, prisms, and rock fragments can be used to determine the shear strength. This system features electro-hydraulic closed-loop digital servo control of the shear and normal loads for test automation. The included software program accepts inputs from the normal load sensor and up to three normal deformation sensors (the software calculates automatically the average normal deformation). Loads or deformations for both the shear and normal actuators can be set to automatically perform advanced tests such as the Constant or Calculated Normal Stiffness Direct Shear Test. This system can be provided with an optional triaxial cell, unconfined loading platens, indirect tension (Brazilian) platens, etc. to perform most of the laboratory mechanical tests required for rocks.

SPECIFICATIONS See RDS-300 brochure.

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Uniaxial Testing System (UCT-1000)

Compression and Tension loading system with

electro-hydraulic closed-loop digital servo control Static and Dynamic loading capabilities Adjustable cross-head design Accepts GCTS High Pressure triaxial cell & other

testing components Ideal for performing unconfined compression,

bending, indirect tension, fracture, creep, and other material tests

Available systems with load capacities up to 4,500 kN (1,000 kips) and stiffness up to 4,300 kN/mm (25x106 lbs/inch)

Economical turn-key systems built to customer specifications

DESCRIPTION GCTS Uniaxial Testing Systems include our state-of-the-art SCON-1500 Digital Signal Conditioning & Servo Controller CATS software. The system is capable of performing static and dynamic closed-loop load, deformation, strain or any other

measured or calculated parameter. Automatic bump-less or smooth control transfer can be programmed at any test stage. The true 32-bit Windows XP Software allows sending directly your test data to any computer connected to your local network. Using a Windows network system in your lab facilitates the transferring of your test data directly into other Windows programs such as Word or Excel for report generation as well as to easily backup your important test results

SPECIFICATIONS Compression load capacity 1,000 kN Tension load capacity .... 800 kN Stiffness 700 kN/mm Stroke 100 mm Distance between columns 400 mm Distance between platens .. 600 mm

SHIPPING Weight 1,700 kg Dimensions (meters) 1.2W x 2D x 2H

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Rapid Triaxial Rock Testing System (RTR-1000)

GCTS High Pressure Triaxial cell with hydraulic

lift/lock for rapid, easy and safe operation Ideal for production test facilities Load capacities up to 1,500 kN (340 kips) &

stiffness up to 10,000 kN/mm (50x106 lbs/inch) Larger load capacities available upon request Closed-loop digital servo control Integrated confining & pore pressure panel with

dual intensifiers Pressures up to 140 MPa (20 ksi) 24 electrical feed thru lines (6 connectors) for

internal instrumentation such as load cells, LVDTs, thermocouples, ultrasonic velocity, & acoustic emission sensors


DESCRIPTION The GCTS Rapid Triaxial Systems are typically operated with our new digital servo control and data acquisition package that includes Windows (98/2000/NT/XP) testing software and digital signal conditioning system. An Automatic hydraulic lift and a sliding base for the triaxial cell are included with this system for fast and easy specimen setup. Fast assembly/disassembly of the cell is achieved with the push of a single button. No bolts or other fasteners are used to assemble the triaxial cell, resulting in more time dedicated to testing.

SPECIFICATIONS See RTR-1000 Brochure

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Triaxial Rock Testing System (RTX-1000)

1,000 kN (225 kip) axial load and 70 MPa (10,000

psi) confining pressure capacity Direct closed-loop digital servo control of axial

stress, axial strain, radial strain, and several other calculated triaxial variables

GCTS High Pressure Triaxial cell with internal instrumentation to measure local axial & radial strains

Ideal for performing unconfined compression, triaxial, bending, indirect tension, fracture, creep, post failure behavior, & other compression tests

Available options: High stiffness loading frame, platens with ultrasonic transducers, high temperature control subsystem, and upgrades for axial loads up 4,500 kN and confining pressures up to 210 MPa.

Economical "turn-key" systems built to customer specifications.

DESCRIPTION GCTS Triaxial Rock Testing Systems are manufactured according to your design specifications (load capacity and system stiffness, sample size, confining and pore pressures, internal instrumentation, temperature testing, and ultrasonic velocity measurements). The top cross head height can be adjusted to accommodate a wide variety of test specimens and triaxial cells. The RTX-1000 meets the specifications of the International

Society for Rock Mechanics (ISRM) for triaxial testing of rock samples. The system is capable of performing static and dynamic closed-loop strain or stress controlled as well as post failure behavior tests. Included with this system is our true 32-bit Windows XP Software. It allows sending directly your test data to any computer connected to your local network. Our new software includes a database system to keep track of all the data generated at your lab with any of our testing systems. Using a Windows network system in your lab facilitates the transferring of your test data directly into other Windows programs such as Word or Excel for report generation as well as to easily backup your important test results The Graphical User Interface with context-sensitive on-line help and intuitive color windows helps minimize learning time and enables laboratory personnel to conduct more complex, but realistic, testing programs at substantially lower operating cost and also with minimal operator error. The system manages all the instrumentation and continuously monitors sensor outputs to accurately account for uplift pressures acting on the loading piston, area changes, deformation and volume change sensors setup and re-positioning, etc.

SPECIFICATIONS Contact GCTS

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Triaxial Rock Testing System (RTX-1500)

Direct closed-loop digital servo control of axial

stress, average principle stress, axial strain, radial strain, and several other calculated triaxial variables

1,500 kN Load capacities and 1,750 kN/mm stiffness.

GCTS High Pressure Triaxial cell with internal instrumentation to measure local axial & radial strains

140 MPa servo-controlled pressure intensifier system for cell and pore pressure.

Available options: axial & circumferential deformation measurement system, platens with ultrasonic transducers, and high temperature control subsystem.

Ideal for performing unconfined compression, triaxial, bending, indirect tension, fracture, creep, post failure behavior, & other compression tests

Economical "turn-key" systems built to customer specifications.

Optional automatic hydraulic lift for triaxial cell and roller assembly for fast & easy specimen setup

DESCRIPTION GCTS Triaxial Rock Testing Systems are manufactured according to your design specifications (load capacity and system stiffness, sample size, confining and pore pressures, internal instrumentation, temperature testing, and ultrasonic velocity measurements). The top cross head height can be adjusted to accommodate a wide variety of test specimens and triaxial cells. The RTR-1500 meets the specifications of the International Society for Rock Mechanics (ISRM) for triaxial testing of rock samples. The system is capable of performing static and dynamic closed-loop strain or stress controlled as well as post failure behavior tests. Included with this system is our true 32-bit Windows XP Software. It allows sending directly your test data to any computer connected to your local network. Our new software includes a database system to keep track of all the data generated at your lab with any of our testing systems. Using a Windows network system in your lab facilitates the transferring of your test data directly into other Windows programs such as Word or Excel for report generation as well as to easily backup your important test results

SPECIFICATIONS Contact GCTS.

SHIPPING Weight 3,200 kg Volume 7.2 m

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Hydraulic Fracture Test System (HFRTC-100)

Axial Load

Fluid Injection

Rock Specimen

Capable of performing static and dynamic triaxial

tests as well as hydraulic fracture, Well bore stability, and rock permeability

1,100 kN (250 kip) stiff (1750 kN/mm) four-column frame with servo-controlled hydraulic actuator (100mm stroke)

RTX-100 stainless steel triaxial cell for NX specimens (10,000 psi confining pressure capacity)

Air/oil pressure booster with pressure transducer for static control of cell or backpressure up to 70 MPa (10,000 psi)

Servo-controlled pressure intensifier capable of static and dynamic control of fluid injection pressures up to 70 MPa (10,000 psi)

May also be used for confining or backpressure Heating system for testing at temperatures up to

230 C (550 F) Optional internal acoustic emission sensor

DESCRIPTION The GCTS Hydraulic Fracture Test System is capable of performing not only basic static and dynamic triaxial tests, but also hydraulic fracture, Well bore stability, and permeability tests. This versatile system is very easy to operate because of the Graphical User Interface (GUI) software. The features listed below are for our base system. We also have systems for larger loads and higher pressures. Frame stiffness and specimen size options are also available. Other options

include replacement of the manual air/oil booster with a servo-controlled intensifier, and upgrades to our dual-piston intensifier for tests, which require relatively large fluid flows without pressure spikes.

SPECIFICATIONS Axial load . . . . . . . . . . . . . . . . . . . . . . . 1,000 kN Confining & pore fluid pressure . . . . . . 70 MPa Intensifier volume . . . . . . . . . . . . . . . . . 280 cc

SHIPPING Weight . . . . . . . . . . . . . . . . . . 1,600 kg Dimensions (meters) . . . . . . . Crate 11W x 2.0D x 2H . . . . . . . . Crate 21W x 1.5D x 2H

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Rock Testing Components

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Rock Deformation Device (DEF-5000)

Available sizes for specimen diameter from 25 mm

to 150 mm (optional sizes available) Measures axial and lateral strain directly on the

test specimen Two axial sensors & one circumferential sensor Uses LVDT's for ease of operation Models for up to 200 MPa pressure and up to

150 C temperature testing Very easy to set up and use

DESCRIPTION The GCTS Rock Deformation Device measures axial and lateral strain directly on the specimen providing accurate results. The device consists of an upper and lower support ring machined with a low weight, high strength design. The rings include spring-loaded set screws to allow for specimen expansion during loading. A set of perforated rods with pre-set lengths is included to position the axial rings at pre-defined gage lengths without difficulty. The circumferential device is built with small, high precision rollers and stiff linkages for high accuracy strain measurements. Thumb screws are also provided to easily null the LVDT sensors.

The GCTS Rock Deformation Device is available in standard sizes and also in custom sizes and is available with LVDT ranges from 2 to 10 mm. This device can be used within our high-pressure triaxial cell and also used for elevated or cold temperature testing. Elastic constants such as Young's modulus and Poisson's ratio can be determined as well as inelastic strains that occur after sample failure (post failure analysis). Direct servo control of axial or radial strains can be performed with this device.

SPECIFICATIONS Model . . . . . . . . . . . . Specimen Size . . . . LVDT Range . . . . . . . . . . . . . . . . . (Diameter in mm) . . . . . (mm) DEF-5100 . . . . . . . . . . . . 25 to 55 . . . . . . . . . . . 5 DEF-5200 . . . . . . . . . . . . 50 to 75 . . . . . . . . . . . 5 DEF-5300 . . . . . . . . . . . . 70 to 100 . . . . . . . . . 10 For High Pressure append the letter A and for high temperature add the letter T to the model number (i.e. DEF-5100AT).

SHIPPING Weight: . . . . . . . . . . . . . . . . . 4 kg Dimensions (meters): . . . . . . 0.3W x 0.3D x 0.3H

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Indirect Tension (Brazilian) Apparatus for Rocks (RIT-B)

Available sizes for specimen diameter from 50 mm

to 150 mm (Note that ISRM recommends that the diameter shall not be less than NX core 54-mm diameter).

Made of hardened stainless steel. Can be used with GCTS unconfined, triaxial and

point load tester frames. Very easy to set up and use. DESCRIPTION The GCTS IDT-B Rock Apparatus is used for determining indirect tensile strength by the Brazil test according to the International Society for Rock Mechanics standard. The device consists of an upper and lower support ring machined with a low weight, high strength design. The Indirect Tension Apparatus is available in standard sizes and also in custom sizes.

SPECIFICATIONS Standard apparatus includes: Loading jaws for testing 54-mm (NX) diameter and

27-mm thick samples by the Brazil test). Top and bottom jaws 30 mm wide with 39-mm radius and guide pins to allow rotation of one jaw relative to the other. Top jaw includes spherical seating with HRC 45 hardness.

Half ball bearing. Spherical platen formed by a 25-mm half ball bearing.

Meets ISRM suggested method for Determining Tensile Strength by the Brazil measures axial and lateral strain directly on the specimen providing accurate results.

NOTE: Requires suitable compression frame

19

Compression Frames (FRM4-1000)

Compression frames for testing rocks, concrete, and other construction materials

Pre-stressed four-column and adjustable cross-head design

Load capacities up to 4,500 kN (1,000 kips) and stiffness up to 4,300 kN/mm (25x106 lbs/inch)

Closed-loop digital servo control Accepts GCTS High Pressure triaxial cell & other

testing components Available integrated hydraulic lift for triaxial cell for

easy setup Ideal for performing unconfined compression,

triaxial, bending, indirect tension, fracture, creep, and other compression tests


DESCRIPTION GCTS Compression Frames are typically operated with our Digital Servo Control software and hardware package that includes the electro-hydraulic power unit, servo valve, sensors, computer interface, and testing software. Available with these frames is an automatic hydraulic lift for triaxial cell and roller assembly for fast and easy specimen setup. This option is recommended with GCTS high-pressure triaxial cells. These frames can also use an economical air/oil pressure booster instead of the electro-hydraulic power unit for long term compression tests like the creep test.

SPECIFICATIONS For Typical Systems (FRM4-1000-5) Axial load capacity (static) . . . . . 1,000 kN Axial load capacity (dynamic) . . . 800 kN Stiffness . . . . . . . . . . . . . . . . . . . 700 kN/mm Stroke . . . . . . . . . . . . . . . . . . . . 50 mm Servo valve capacity . . . . . . . . . 19 l/min Distance between columns . . . . 400 mm Distance between platens . . . . . 600 mm

SHIPPING Weight: . . . . . . . . . . . . . . . . . 1,600 kg Dimensions (meters) . . . . . . 1W x 2D x 2H

20

Pressure Intensifier System (HPVC-070)

PRESSURETRANSDUCER

SERVO VALVE

LVDT

TOTRIAXIAL

CELL

HIGH PRESSURE SIDE (70 MPa)

LOW PRESSURE SIDE (14 MPa)

Closed-loop digital servo control of pressure or flow (volume) with bump-less transfer

70 MPa (10,000 psi) pressure range 500 cc stroke capacity Stainless-steel construction Can be used as a volume change measurement

device for triaxial and permeability testing Larger pressure and volume stroke capacities

also available

DESCRIPTION GCTS Pressure Intensifiers are ideal for the servo control of the cell pressure in triaxial tests, head pressure in permeability tests, or fluid pressure in hydro-fracture tests. This intensifier can also be used to measure flow in permeability tests and volume change in triaxial tests while applying prescribed pressures. Together with GCTS digital servo controller and the triaxial software, it allows the performance of more advanced tests such as stress/strain path. The HPVC-070 is mounted in a metal cabinet on casters to house the confining pressure/volume servo controlled intensifier, fluid reservoir, sight level gage, and venturi vacuum pump. All valves are mounted on the front panel for easy intensifier operation and filling or draining the cell. GCTS makes a dual piston intensifier model for tests where continuous flow is required and pressure spikes cannot be tolerated. These models include two intensifiers and two servo valves together with the necessary check valves, plumbing, and special control software for automatic operation. Also available, as an alternative, is an economical air/oil pressure booster. These units operate with 700 kPa (100 psi) air pressure input for a 70 MPa (10,000 psi) output. GCTS pressure boosters offer a low cost, trouble free operation and are ideal for use in creep and sustained loading in long term tests.

SPECIFICATIONS Pressure control precision: .0.1 MPa (15 psi) Pressure transducer resolution: 0.02 MPa Volume transducer resolution: 0.01 cc. Pressure test gauge accuracy: 0.25%. Fluid media compatibility: oil and water (consult GCTS for other) Fluid reservoir capacity: 19 liter (5 gallon) Required pressure input: 21 MPa (3,000 psi)

SHIPPING Weight: . . . . . . . . . . . . . . . . . 285 kg. Dimensions (meters): . . . . . . 0.85W x 0.85D x 2.0H

21

Pressure Intensifier System (HPVC-140)

HPVC-140C (left) & HPVC-140P (right)

140 MPa (20,000 psi) pressure range 280 or 560 cc stroke capacity Closed-loop digital servo control of pressure or

flow with bumpless transfer Can be used as a volume change measurement

device for triaxial and permeability testing 4,000 cc fluid reservoir with pressure/vacuum/

vent port for easy filling and draining triaxial cell and intensifier

Metal cabinet mounted on casters to house the confining pressure/volume servo controlled intensifier, fluid reservoir, and panel

Dual piston model available for continuous, non-pulsating flow

Larger pressure and volume stroke capacities also available

DESCRIPTION GCTS Pressure Intensifiers are ideal for the control of the cell pressure in triaxial tests, head pressure in permeability tests, or fluid pressure in hydro-fracture tests. This intensifier can also be used to measure flow in permeability tests and volume change in triaxial tests while applying prescribed pressures. Together with GCTS digital servo controller and the triaxial software, it allows the performance of more advanced tests such as stress/strain path. These units include a 4,000 cc reservoir, reservoir level and fluid flow indicators, analogue pressure gage, and necessary valves to simplify all operations. All these components are housed within a metal cabinet with casters. GCTS makes a dual piston intensifier model for tests where continuous flow is required and pressure spikes cannot be tolerated. These models include two intensifiers and two servo valves together with the necessary check valves, plumbing, and special control software for automatic operation. Also available, as an alternative, is an economical air/oil pressure booster. These units operate with 700 kPa (100 psi) air pressure input for a 140 MPa (20,000 psi) output. GCTS pressure boosters offer a low cost, trouble free operation and are ideal for use in creep and sustained loading in long term tests.

SPECIFICATIONS HPVC-140C . . . . . . 560 cc (Confining Pressure) HPVC-140P . . . . . . 280 cc (Pore Pressure) Contact GCTS


PRESSURETRANSDUCER

SERVO VALVE

LVDT

TOTRIAXIAL

CELL

HIGH PRESSURE SIDE (70 MPa)

LOW PRESSURE SIDE (14 MPa)

Air/Oil Pressure Booster (HPC-070)

70 MPa (10,000 psi) pressure range Easy to use Air operated Compatible with almost any type of fluid

service Ideal for confining or back (pore) pressure

application to triaxial cell Low acquisition cost and low operating

cost Systems available for pressures up to 210

MPa

DESCRIPTION GCTS Air/Oil Pressure Boosters are very easy to operate and provide an economical alternative to servo-controlled pressure intensifiers. Air source from a 3 to 5 H.P. air compressor is sufficient to drive these pumps. The GCTS Air/Oil Pressure Boosters are enclosed in a table-top metal cabinet and include pressure panel, 19-litter (5 gallon) fluid reservoir with pressure/vacuum/ vent port and venturi vacuum pump for easy filling and draining pressure cell, sight level gage, pressure gauge, input and output pressure regulators, high pressure valves, and a 3-meter flexible hose.

SPECIFICATIONS Pressure control precision: 1 MPa (150 psi) Pressure test gauge accuracy: 0.25% Maximum Flow Rate: 0.3 liter/minute Fluid compatibility: water and oil (consult GCTS for other) Fluid reservoir capacity: 19 liter (5 gallon) Required input: 700 kPa (100 psi) air pressure


22

23

High Pressure Triaxial Cell (HTRX-020)

20 MPa (3,000 psi) pressure & 400 kN (90 kips)

axial load capacity Stainless steel construction Accepts samples with a diameter from 25 mm to

75 mm and with a length of 2 times the diameter Upper platen provided with a spherical seat to

compensate for non-parallel specimen ends Top & bottom pore pressure plumbing provided for

effective stress and permeability measurements Electrical feed-through connectors for GCTS axial

and circumferential deformation measurement devices, ultrasonic sensors, and other special transducers

AVAILABLE OPTIONS: Axial and circumferential deformation

measurement system Platens with ultrasonic transducers for P- & S-

wave velocity measurements High & low temperature control subsystem for

testing at -30 to 150 C

DESCRIPTION The GCTS High Pressure Triaxial Cell was designed for testing 75 mm (3 inch) rock specimens with lengths of up to 160 mm at confining pressures of up to 20 MPa and axial loads of up to 400 kN. Other specimen diameters can also be tested with the use of optional platens. The 150 mm inside diameter of the cell wall and the electrical feed-through connectors installed at the cell base allow the use of in-vessel instrumentation for precise measurements of deformation modulus and Poissons ratio. The standard specimen platens have O-ring grooves for sealing the specimen jacket and an upper spherical seat to minimize stress concentrations due to non-parallel specimen ends. Pore fluid lines and ports for both, upper and lower platens, are also standard for effective stress and permeability measurements. Cell and pore fluid connectors are provided at the cell base for easy interface with either the GCTS computer servo- controlled pressure intensifier or the GCTS air/oil pressure booster system. A loading piston with spherical seating is also provided with this triaxial cell.

24


70 MPa (10,000 psi) pressure & 1,000 kN (225 kips) axial load capacity

Higher pressures up to 210 MPa (30,000 psi) available

Hardened stainless steel construction Accepts samples with a diameter from 25 mm to

63.5 mm and with a length of 2 times the diameter Upper platen provided with a spherical seat to

compensate for non-parallel specimen ends Top & bottom pore pressure plumbing provided for

effective stress and permeability measurements Electrical feed-through connectors for GCTS axial

and circumferential deformation measurement devices, ultrasonic sensors, and other special transducers

AVAILABLE OPTIONS: Axial and circumferential deformation

measurement system Platens with ultrasonic transducers for P- & S-

wave velocity measurements High temperature control subsystem for testing at

up to 150 C

DESCRIPTION The GCTS High Pressure Triaxial Cell was designed for testing 75 mm (3 inch) rock specimens with lengths of up to 127 mm at confining pressures of up to 70 MPa and axial loads of up to 1,000 kN. Other specimen diameters can also be tested with the use of optional platens. The 127 mm inside diameter of the cell wall and the electrical feed-through connectors installed at the cell base allow the use of in-vessel instrumentation for precise measurements of deformation modulus and Poissons ratio. The standard specimen platens have O-ring grooves for sealing the specimen jacket and an upper spherical seat to minimize stress concentrations due to non-parallel specimen ends. Pore fluid lines and ports for both, upper and lower platens, are also standard for effective stress and permeability measurements. Cell and pore fluid connectors are provided at the cell base for easy interface with either the GCTS computer servo- controlled pressure intensifier or the GCTS air/oil pressure booster system. A loading piston with spherical seating is also provided with this triaxial cell.

25

High Pressure Triaxial Cell (HTRX-070L) 70 MPa (10,000 psi) pressure & 1,000 kN

(225 kips) axial load capacity Higher pressures available up to 210 MPa

(30,000 psi) Hardened Stainless steel construction Accepts samples with a diameter from 25 mm

to 100 mm and with a length of 2 times the diameter

Upper platen provided with a spherical seat to compensate for specimens with non-parallel ends

Top & bottom pore pressure plumbing provided for effective stress and permeability measurements

Electrical feedthrough connectors for GCTS axial and circumferential deformation measurement devices, ultrasonic sensors, & other special transducers

Available options: Axial and circumferential deformation

measurement system Platens with ultrasonic transducers for

P- & S-wave velocity measurements High temperature control subsystem for testing

at up to 150 C

DESCRIPTION The GCTS High Pressure Triaxial Cell was designed for testing rock specimens with diameters up to 100 mm (4 inch) and 200 mm (8 inch) lengths at confining pressures of up to 70 MPa and axial loads of up to 1,000 kN. Other specimen diameters can also be tested with the use of optional platens. The 150 mm inside diameter of the cell wall and the electrical feed-through connectors installed at the cell base allow the use of in-vessel instrumentation for precise measurements of deformation modulus and Poissons ratio. The standard specimen platens have O-ring grooves for sealing the specimen jacket and an upper spherical seat to minimize stress concentrations due to non-parallel specimen ends. Pore fluid lines and ports for both, upper and lower platens, are also standard for effective stress and permeability measurements. Cell and pore fluid connectors are provided at the cell base for easy interface with either the GCTS computer servo- controlled pressure intensifier or the GCTS air/oil pressure booster system. A loading piston with spherical seating is also provided with this triaxial cell.

The standard cell includes 5 electrical feed-through connectors with 4 lines each (20 electrical lines total) to connect a variety of internal sensors such as deformation gages, P & S wave velocity transducers, acoustic emission sensors, etc. The optional high temperature control subsystem includes an internal thermocouple to measure the specimen temperature as well as a wall thermocouple to provide precise cascade temperature control and avoid temperature overshoots. In addition a high strength insulation plate is provided in order to eliminate temperature gradients inside the specimen by eliminating fast heat losses through the cell base and to the loading frame. GCTS also manufactures other rock triaxial cells for higher pressures and/or loads. Contact GCTS for information on other high pressure triaxial cells.

SPECIFICATIONS Cell Height: . . . . . . . . . . . . . . . . . . . . . . . . . . 560 mm Cell Width: . . . . . . . . . . . . . . . . . . . . . . . . . . 350 mm

26


HTRX-140 with temperature control option (heaters inside cell wall) & ultrasonic platens

140 MPa (20,000 psi) pressure and 2.5 MN

(560 kips) axial load capacity. Higher pressures available.

Accepts samples with a diameter from 25 mm to 63.5 mm and with a length of 2 times the diameter. Platens for NX (54 mm) diameter specimens come standard with this cell.

Upper platen provided with a spherical seat to compensate for specimens with non-parallel ends.

Top and bottom pore pressure plumbing provided for effective stress and permeability measurements.

Electrical feed-through connectors for GCTS axial and circumferential deformation measurement devices or other special transducers.

Available options: Axial and circumferential deformation measurement system, platens with ultrasonic transducers for P and S wave velocity measurements, and high temperature control subsystem for testing at up to 200 C

DESCRIPTION The GCTS High Pressure Triaxial Cell was designed for testing (NX size 54mm diameter) rock specimens with lengths of up to

120 mm at confining pressures of up to 140 MPa and axial loads of up to 2,500 kN. Other specimen diameters can also be tested with the use of optional platens. The 150 mm inside diameter of the cell wall and the electrical feed-through connectors installed at the cell base allow the use of in-vessel instrumentation for precise measurements of deformation modulus and Poissons ratio. The standard NX specimen platens have O-ring grooves for sealing the specimen jacket and an upper spherical seat to minimize stress concentrations due to non-parallel specimen ends. Pore fluid lines and ports for both, upper and lower platens, are also standard for effective stress and permeability measurements. Cell and pore fluid connectors are provided at the cell base for easy interface with either the GCTS computer servo- controlled pressure intensifier or the GCTS air/oil pressure booster system. A loading piston with a spherical seating is also provided with this triaxial cell.

SPECIFICATIONS Inside Diameter: . . . . . . . . . . .150-mm (6 inch) Overall Outside Diameter: . . . 420-mm (16.5 inch) Overall Height: . . . . . . . . . . . . 520 mm (20.5 inch)


200 MPa (29,000 psi) pressure and 2.5 MN

(560 kips) axial load capacity. Higher pressures available.

Accepts samples with a diameter from 25 mm to 63.5 mm and with a length of 2 times the diameter. Platens for NX (54 mm) diameter specimens come standard with this cell.

Upper platen provided with a spherical seat to compensate for specimens with non-parallel ends.

Top and bottom pore pressure plumbing provided for effective stress and permeability measurements.

Electrical feed-through connectors for GCTS axial and circumferential deformation measurement devices or other special transducers.

Available options: Axial and circumferential deformation measurement system, platens with ultrasonic transducers for P and S wave velocity measurements, and high temperature control subsystem for testing at up to 200 C

DESCRIPTION The 150 mm inside diameter of the cell wall and the electrical feed-through connectors installed at the cell base allow the use of in-vessel instrumentation for precise measurements of deformation modulus and Poissons ratio. The standard NX specimen platens have O-ring grooves for sealing the specimen jacket and an upper spherical seat to minimize stress concentrations due to non-parallel specimen ends. Pore fluid lines and ports for both, upper and lower platens, are also standard for effective stress and permeability measurements. Cell and pore fluid connectors are provided at the cell base for easy interface with either the GCTS computer servo- controlled pressure intensifier or the GCTS air/oil pressure booster system. A loading piston with a spherical seating is also provided with this triaxial cell. The high temperature option includes a thermocouple port, heaters embedded into cell wall, insulation base plate, and insulation jacket. The insulation base plate is very important to eliminate temperature gradients within the specimen.

SPECIFICATIONS Inside Diameter: . . . . . . . . . . .150-mm (6 inch) Overall Outside Diameter: . . . 420-mm (16.5 inch) Overall Height: . . . . . . . . . . . . 520 mm (20.5 inch)

27

28

Heavy Duty Laboratory Coring Machine (RCD-200)

150 to 1500 rpm spindle speed 2 HP Motor Automatic down-feed mechanism with 170-mm

travel Stiff frame for true cylindrical, ridge-free samples

with automatic down-feed Built in sample holder Wide variety of coring barrels to choose from

DESCRIPTION

The GCTS Laboratory Coring Machine is capable of achieving a large range of spindle speeds to provide optimum performance when preparing test specimens, regardless of the properties of the material being sampled. All accessories are included (water swivel, drip pan, sample holder, and custom specified core barrels). Optional force/stroke control is available to optimize feeding rates for superior performance when coring material, which is not homogeneous.

SPECIFICATIONS 2 HP electric motor with adjustable spindle speeds from 150 through 1500 rpm. Automatic down-feed mechanism with 170-mm travel. Radial and angular adjustments to drill at different locations, water swivel, drip pan, vise table to hold prismatic rock samples, and motor head assembly vertical adjustment. Order diamond core bits separately.

OPERATION 230 volts (other voltages available at no additional cost. Please specify when ordering) 50-60 Hertz 3-phase

SHIPPING Weight: . . . . . . . . . . . . . . . . . . 1,480 kg. Dimensions (meters): . . . . . . . 1.0W x 1.5D x 2.0H

STANDARD DIAMOND BITS Model No. Designation mm inch DCB-EX . . . . . . . . .EX . . . . . 21.5 . . . . 0.845 DCB-AX . . . . . . . . .AX . . . . . 30.1 . . . . 1.185 DCB-BX . . . . . . . . .BX . . . . . 42.0 . . . . 1.654 DCB-NX . . . . . . . . .NX . . . . . 54.7 . . . . 2.154 DCB-HQ . . . . . . . . .HQ . . . . .63.5 . . . . 2.500 DCB-HX . . . . . . . . .HX . . . . . 76.2 . . . . 3.000 DCB-100 . . . . . . . . . . . . . . . . 100.0 . . . 4.000 DCB-150 . . . . . . . . . . . . . . . . 150.0 . . . 6.000

29

Pressure Controlled Coring Machine (RCD-250)

1.5 HP electric motor with 12 adjustable spindle speeds from 150 through 4,200 rpm

Drilling rate controlled by both pressure and speed and automatic down-feed mechanism with 250-mm travel

Rigid Multi-Column drill support frame to eliminate ridges on specimen

Includes quick-latch specimen holder for coring 100 mm (4 in.) specimens from 150 mm (6 in.) compacted samples

Wide variety of Coring Barrels to choose from

STANDARD DIAMOND BITS Model No. Designation mm inch DCB-EX . . . . . . . . .EX . . . . . 21.5 . . . . 0.845 DCB-AX . . . . . . . . .AX . . . . . 30.1 . . . . 1.185 DCB-BX . . . . . . . . .BX . . . . . 42.0 . . . . 1.654 DCB-NX . . . . . . . . .NX . . . . . 54.7 . . . . 2.154 DCB-HQ . . . . . . . . HQ . . . . . 63.5 . . . . 2.500 DCB-HX . . . . . . . . HX . . . . . .76.2 . . . . 3.000 DCB-100 . . . . . . . . . . . . . . . . 100.0 . . . 4.000 DCB-150 . . . . . . . . . . . . . . . . 150.0 . . . 6.000

Rock Sample

DESCRIPTION The GCTS Laboratory Coring Machine is capable of achieving a large range of spindle speeds to provide optimum performance when preparing test specimens, regardless of the properties of the material being sampled. All accessories are included (water swivel, drip pan, sample holder. Other standard or custom barrels are also available. The main feature that sets this coring machine above any other is the force/stroke control to optimize feeding rates for superior performance when coring material, which is not homogeneous.

SPECIFICATIONS 1.5 HP electric motor with 12 adjustable spindle speeds from 150 through 4,200 rpm. Drilling rate controlled by both pressure and speed eliminating the tendency for non-homogeneous rocks to move. 250-mm travel. Specimens up to 250 mm long. Rigid Multi-Column drill support frame to eliminate ridges on specimen. Comes with your choice of cylindrical specimen holder for coring specimens from 150 mm (6 inch) compacted samples or vise table to hold prismatic rock samples. Hydraulic pump, water swivel, drip pan, vise table, and motor head assembly also included. Order diamond core bits separately.

OPERATION 220 volts 50-60 Hertz Single phase


30

Specimen Grinder (RSG-200)

Fast grinder with a single-pass full specimen

coverage to make core loading faces parallel and flat according to ASTM and ISRM specifications.

Includes Diamond grinding cup-wheel. Custom made specimen holder.

DESCRIPTION The GCTS Specimen Grinder provides the final step to preparing test specimens with parallel and flat ends according to ASTM and ISRM specifications. The grinder is driven by a heavy-duty 2.0 HP electric motor for durability. A diamond grinding cup-wheel is provided along with a custom stainless steel sample holder. GCTS offers sample holders for specimen diameters from 25 mm to 150 mm. The system has a built in cooling circulator that cools the grinding cup-wheel when preparing a specimen.

SPECIFICATIONS Fast grinder with a single-pass full specimen coverage to make core loading faces parallel and flat according to ASTM and ISRM specifications. 2 HP electric motor. Includes diamond grinding cup wheel, coolant system with 45 liters of biodegradable rock oil, magnetic chuck, and stainless steel specimen holder for 50 to 76 mm diameter specimens. OPERATION: 230 volts 50-60 Hertz 3 phase

SHIPPING Weight: . . . . . . . . . . . . . . . . . 1,220 kg. Dimensions (meters) . . . . . . 1.0W x 1.5D x 2.0H

31

Specimen Flatness Gage (RFG-100)

DESCRIPTION

200 mm x 300 mm x 50 mm thick granite base (grade A, +/- 0.0001" accuracy) with dial gage support for measuring flatness of specimens up to 200 mm in height. Includes electronic digital dial gage 0.01 mm (0.0005") resolution.

32

Soil Testing Systems

33

Servo Controlled Consolidation Apparatus (CRS-10) Constant Rate of Strain (CSR), Constant Gradient

(CG), and conventional Consolidation Tests Electro-Pneumatic Servo Control 10 kN load capacity Automatic data logging and report generation Custom Specimen sizes available

DESCRIPTION The GCTS Consolidation Apparatus is capable of performing Controlled Gradient (CG), Constant Rate of Strain (CRS), and Incremental (conventional) consolidation tests. The device is to be used inside the triaxial chamber and loading frame. Includes stainless steel specimen ring, porous stones, o-ring seals, and necessary plumbing. During the controlled gradient (CG) test, a pore pressure transducer mounted on the base provides a feedback signal, which is used in the operating software to provide a preset loading rate on the test specimen. The constant rate of strain test (CRS) can also be performed using the GCTS Consolidation Apparatus. Using deformation sensor, which monitors axial strain on the specimen, the sample is loaded at a preset rate of strain controlled by the system software. The conventional or incremental consolidation test is performed through application of an axial load on the test specimen at preset loading steps or increments. The GCTS CRS-10 Consolidation Apparatus includes a loading frame, load cell, deformation sensor, pore pressure sensor, servo valve and the SCON1500 servo controller and data acquisition system to automatically perform the above tests. Windows software is also provided to set the tests as well as to monitor in real time the test data and data reduction. GCTS can also provide consolidation systems for larger specimens and larger loads. Other options include bender elements to measure shear wave velocities and HAEV ceramic disks to obtain soil-water- characteristic curves (SWCC). Please contact GCTS to inquire about these or any other option.

SPECIFICATIONS Maximum Load: 10 kN Standard Specimen size: 63 mm (2.5 inch) Maximum Specimen Size: 75 mm (3 inch) Excitation: 10 VDC Operation: 110/220 VAC 1,000 kPa dry, compressed air

SHIPPING Weight : 350 kg. Volume: 1.5 m3 approximately

34

Direct Shear Testing System for Soils (SDS-100)

Closed-loop servo control of double acting

(push/pull) 20 kN (2 ton) shear load actuator with 25 mm stroke & 20 kN

(2 ton) normal load capacity with 50 mm stroke Normal load reaction support mounted on sliding

bearings to minimize horizontal friction Accepts specimens with up to 100 mm (4")

diameter or 70 mm (2.75") square specimens Software for automatic performance of direct

shear tests with constant normal stress or normal stiffness

Real time graphical display of test progress Mounted on a cart with casters Other load capacities & specimen size dimensions

are available, including large-scale test systems for shear loads of up to 1,000 kN (100 ton) & specimen sizes up to 300 mm diameter or side

DESCRIPTION This system features electro-hydraulic closed-loop digital servo control of the shear and normal loads for test automation. Loads or deformations for both the shear and normal actuators can be prescribed for automatically performing conventional direct shear tests as well as more advanced tests. This system can be easily programmed to perform tests such as the constant normal

stiffness test where the normal load is a function of a prescribed stiffness for simulating actual compressibility of a ground shear plane (e.g. soil-pile interaction). The GCTS Direct Shear Test System is especially well suited to test coarse granular materials because of its large sample size and high load capacity. A major advantage over conventional motorized system is that this system eliminates vibrations that can disturb or densify granular specimens. The SDS-100 is mounted on a convenient cart with caster that not only supports the apparatus but also houses the hydraulics inside.

SPECIFICATIONS Power: 120 or 220 VAC (Contact GCTS for full specifications and available options)

SHIPPING Weight : . . . . . . . . . 250 kg. Dimensions: . . . . . . 1.0 m x 1.2 m x 1.2 m

35

Direct Shear Testing System for Soils and Asphalts (SDS-150)

Closed-loop servo control of double acting

(push/pull) 50 kN (5 ton) shear load actuator with 100 mm (50 mm) stroke & 50 kN (5 ton) normal load capacity with 50 mm stroke

Normal load reaction support mounted on sliding bearings to minimize horizontal friction

Accepts 150 mm (6") square specimens Software for automatic performance of direct

shear tests with constant normal stress or normal stiffness

Available interface platens to test soils, asphalt and geo-membranes.

Other load capacities & specimen size dimensions are available, including large-scale test systems for shear loads of up to 1,000 kN (100 ton) & specimen sizes up to 300 mm diameter or side

DESCRIPTION This system features electro-hydraulic closed-loop digital servo control of the shear and normal loads for test automation. Loads or deformations for both the shear and normal actuators can be prescribed for automatically performing conventional direct shear tests as well as more advanced tests. This system can be easily programmed to perform tests such as the constant normal stiffness test where the normal load is a function of a prescribed stiffness for simulating actual compressibility of a ground shear plane (e.g. soil-pile interaction). The GCTS Direct Shear Test System is especially well suited to test coarse granular materials including interface because of its large sample size and high load capacity. A major advantage over conventional motorized system is that this system eliminates vibrations that can disturb or densify granular specimens.


36

Servo-Controlled Simple Shear Testing System (SSH-100)

Dynamic and static simple shear apparatus

capable of applying cyclic loads up to 20 Hz Digital servo control of shear and normal loads or

displacements Servo control of the confining pressure Acrylic cell capable of 1,000 kPa (150 psi) lateral

confining pressure (2,000 kPa option available) Includes lines for top and bottom specimen

drainage 25 kN normal and shear load capacity Lateral support of top cap to minimize rotation

compliance & sliding base mounted on pre-loaded linear bearings

Optional internal load cell and deformation sensors with overload protection

Software for automatic performance of simple shear tests with real time graphical display of test progress

Optional ultrasonic platens and unsaturated testing

Automatic tilt mechanism for fast and easy specimen installation

DESCRIPTION The design of the GCTS Simple Shear System is based on our external cell wall triaxial system. The apparatus has a fixed top and a sliding bottom base mounted on special linear bearings. The system also has a stiff internal support to minimize lateral compliance of the top cap. One of the main advantages of the GCTS Simple Shear System is that our apparatus does not require a reinforced membrane as lateral support is provided via the confining pressure. This means that consolidation can be done at K values other than Ko. The confining pressure can be servo controlled and together with the hydraulic servo control of the normal and shear loads, the GCTS system is capable of performing advanced tests such as zero volume change. The system is capable of testing 100 mm (4 in.) and 71 mm (2.8 in.) diameter specimens. Because the internal lateral support can be adjusted up or down, various specimen heights can be tested. This means that the system can be used to test either simple shear or triaxial test specimens with heights up to 2.5 times the diameter.

37

Dynamic Hollow Cylinder Testing System (HCA-100)

Closed-loop digital servo control 225 Nm torsional loads & up to 100 kN axial

loads at up to 50 Hz Confining, back/pore, and internal pressure servo

control up to 1,000 kPa Angular displacement sensor with a deflection

range of 25 to measure large shear strains (40 optional)

Non-contacting deformation sensors with a 2.5 mm range to detect small shear strains

Standard systems to test 100 mm outside diameter & 50 mm inside diameter (25 mm wall thickness)

Systems also available to test 150 mm OD and 75 mm ID

Optional unsaturated soils testing system package also available

Internal high-speed torque motor for resonant column testing, ultrasonic platens, and temperature controller options also available

Complete "turn-key" system

DESCRIPTION Direct digital servo control of axial load, torque, confining pressure, internal pressure, and back pressure are achievable using the GCTS Dynamic Hollow Cylinder Testing System for performing "true triaxial" tests. This system is capable of simulating most field stress/strain path tests (static or dynamic) including plane strain, simple shear, and small shear strains. Other possible tests include, measurement of dynamic shear strength & deformation, liquefaction potential, shear modulus and damping ratio. The system is versatile in allowing the user to design custom procedures with operating frequencies of up to 50 Hz. The system software advices the user on how to perform testing tasks and also reminds the user of important steps that may need to be executed (such as opening or closing a valve at required test stages). The program helps the user to select proper testing parameters and provides the necessary information to automatically execute the test. The Graphical User Interface with context sensitive on-line help and intuitive color windows help minimize the learning time and enables laboratory personnel to conduct more sophisticated testing programs at an economical price. The system manages all the instrumentation and continuously monitors sensor outputs to accurately account for uplift pressures acting on the loading piston, area changes, deformation and volume change sensor setup, re-positioning, etc.


38

Poly-Axial Test System (SPAX-2000)

Tests cubical specimens 75 x 75 mm

by 150 mm height Capable of applying 5 MPa & 2 MPa for the

maximum major and minor stresses, respectively Independent stress or strain closed-loop digital

servo control of each one of the three axes Front and back-hinged doors swing open for easy

specimen access Internal load cells are rigidly attached to upper and

both side loading platens Especially well suited for Ko-consolidation testing Turn-key systems Systems also manufactured to customer

specifications Unsaturated soils triaxial testing

DESCRIPTION The Poly-Axial System includes four hydraulic load rams equipped with LVDTs so that each platen can be independently computer-controlled. The feedback control can be either stress or strain. With this configuration the specimen can be maintained

centered minimizing end platen friction. This is accomplished by always making one of the LVDTs on each plane with hydraulic loaders the master and the opposing LVDT the slave. The master LVDT can be controlled to deform at a particular rate, including zero, and the slave is automatically programmed to deform an equal amount. Each one of the horizontal loading rams has an internal load cell because there can be significant end platen friction at the top and bottom porous stones, especially if the specimen exhibits significant non-homogeneity. The load cell at the bottom vertical loader is omitted because the side platens are smooth and can be lubricated making end platen friction much less an issue for this direction. Pore pressures are measured at the top and bottom specimen ends. Stresses/strains in the axis 3 directions are applied through the chamber fluid pressure. A volume change device is used to measure and control the strains in this direction. Optional proximity sensors can also be used to measure deformations in this direction.


Resilient Modulus and Asphalt Testing System (MRT-300)

Advanced testing for soils and Hot Mix Asphalt

(HMA) Electro-Hydraulic or Electro-Pneumatic Digital

Servo Control Easy to use software for automatic test

performance Meets AASHTO, SHRP and ASTM standards Triaxial cells for specimens from 71 mm (2.8) to

150 mm (6) diameter Available Indirect Tension fixtures to perform ASTM

D4123 and SHRP P-7 Complete turn-key systems DESCRIPTION The GCTS Resilient Modulus and Asphalt Testing System boasts a modular design which allows the system to be configured to test asphalt and soil in a variety of modes. This system is based on the GCTS SCON Digital Signal Conditioning and Controller and can be supplied with pneumatic or hydraulic loader. The GCTS Resilient Modulus software features built in AASTHO, SHRP, and NCHRP test sequences, and the capability to specify user defined sequences. Contact stress is automatically adjusted according to the above procedures as selected. Available waveforms include haversine, sine, square and triangular, along with a user defined waveform selection. Optional peak & valley compensation ensures proper and quick matching of the load parameters. Real time displays of the prescribed versus actual

dynamic load or the dynamic deformation measurements by each sensor are always present. Deformation ratio of the two sensors, Rv (to ensure that the two deformation sensors are in agreement) and Mr are also calculated in real time. During export, curve fitting is done to fit the results to models that predict Mr as a function of m, d, and CP (cell pressure). Four different functions are calculated automatically (as required by AASHTO and NCHRP procedures): Mr = K1 (m)K2 Mr = K1 (d)K2 Mr = K1 (d)K2 CPK3 Mr = K1 Pa[(-3K6)/Pa]K2 [oct/Pa + K7]K3 For testing asphalt at different temperatures, an optional environmental chamber can be provided. This chamber can accommodate triaxial, indirect tension, beam flexural fatigue, dynamic modulus and all the other testing fixtures GCTS offers. Temperatures of 30 to +150C (with liquid nitrogen boost) can be achieved with this option.

SPECIFICATIONS

Contact GCTS for a system proposal including specifications based on your testing requirements.

AASHTO TYPE 2 Material Compaction Mold

39

40

Resonant Column/ Torsional Shear Testing System (TSH-100 & TSH-200)

Capable of performing modulus/damping resonant

column and torsional tests on soils and asphalts (solid and hollow specimens)

Easy-to-use software for the automatic performance of resonant column & torsional shear tests

Floating drive and measurement system to allow for large angular & axial specimen deformations

1,000 kPa (150 psi) maximum confining pressure. Larger capacities upon request

Higher confining pressures available with stainless steel cell wall

Platens with ultrasonic transducers for P- and S-wave velocity measurements are available as an option

Available upgrades of most resonant column systems to a computer-controlled system

DESCRIPTION This GCTS System combines the

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