Structural Testing Services

Aaryan is one of the leading testing companies in the field of Non Destructive Testing (NDT). Applicable

for concrete structures, Aaryan is your preferred partner for quality results & quick turnaround.

Non Destructive Tests

Covering an initial inspection, detailed test plans and

actual tests on site, NDT provides critical information on

the current condition of the structure. Applicable for new

as well as existing structures, the tests quantify the

specific characteristics.

Pile Integrity Test

Primarily used for in-situ cast piles, Based on low strain

methods, our unique methodology helps to do exhaustive

testing to identify problem piles. A large number of tests

can be done on site in a relatively short period of time.

Aaryan assists in site preparation guides, technical

discussions and quick reports aided by its strong IT

processing systems.

National & International Project Execution

Aaryan team is well equipped to handle assignments

anywhere in india or at international sites. our robust process

oriented approach defines the terrific assignments from start

to finish to suit your schedule & targets.

NABL Accredited Laboratory.

More than 500 Non Destructive Test every year.

Large team with multiple state of the art instruments.

National & international project execution capability.

Working with most leading RCC consulting firms.

Unbiased third party test reports.

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NABL Accredited LaboratoryWith a well equipped NABL accredited laboratory and a

centralized data processing system that works on mobile

technology to get latest data from the site, you are assured

of fast turnaround times. Along with monitoring of sites

under execution and continuous testing, you are assured

of a comprehensive solution. Covering almost all types,

conditions and utility of structures, the testing service is

fine tuned to provide precise data to structural engineers.

Clients Serviced

Type of Structures Tested

Structures include Bridges, Flyovers, Roads, Industrial,

Chemical & Power plants, Public, Residential & Commercial

Buildings, Temples, Irrigation Structures, Ports, Jetties,

Chimneys etc.

Aaryan offers its testing services to RCC consultants,

Structural Designers, Architects, Contractors, Infrastructure

Companies, State & Central government organisations,

Cooperates, Housing Societies.

NDT for Structural elements

Structural Testing Services

www.aaryans.in Aaryan Structcon Pvt.ltd.

Laboratory Address: K-218, Ansa industrial Eastate, Sakivihar road, Sakinaka, Mumbai 400 072, India.

Head Office: 515, 5th Floor, A Wing, Sagar Tech Plaza, Andheri Kurla Road, Sakinaka Junction, Andheri (East), Mumbai-400 072. India.

Tel : (+91-22) 2852 5505, 67105033 Fax : (+91-22) 2852 5524,E-mail: projects@aaryans.in

This test is used to measure the quality of concrete by velocity of

ultrasonic pulse. The velocities are affected by composition of

Concrete, Presence of Cracks, Voids & Other Imperfections that

affect the quality of concrete. On structures correlation of

velocity with strength is used to estimate the compressive

strength of concrete in the structural element.

Ultrasonic Pulse velocity Test

Rebound Hammer Test

This test measures the surface hardness of concrete. For new

structures, the hardness reading is used to co-relate the

strength of concrete. The hammer has to be used normal to the

test surface, vertically (up or down) or horizontally depending on

the structural element.

Half cell potential Test

When the cover concrete is carbonated the process of corrosion

enhances due to the reduction in the alkalinity surrounding the

reinforcement bars. The estimation of carbonation depth thus

helps in predicting the period of protection from corrosion.

Core cutting and compression testing

75mm or 100mm diameter cores are taken on site using state of

the art core cutting machines. Cover meter is used to locate the

reinforcement steel before core cutting. This prevents structural

damage to the RCC member by avoiding the reinforcement.

These cores are dressed in our lab and tested using standard

compression testing methods to determine compressive

strength and arrive at equivalent cube strength of concrete.

This method is used to assess reinforcement bar diameter and

spacing of main bars and stirrups. For new structures it can be

used to determine the exact usage of steel. In old buildings this is

used to gather information on the reinforcement, not available or

otherwise. This information is then used to prepare the structural

drawings as constructed.

Reinforcement mapping - Cover Depth

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uttingCore C

Pile Integrity Test

Pile integrity test is used to assess the continuity of piles. With

this test, necking or bulging and uniformity of quality of concrete

is checked. Piles that are doubtful for integrity are taken up for

Dynamic load testing along with some piles which are ok.

Ultrasonic Pulse velocity Test

Rebound Hammer Test

Half cell potential and carbonation test

pingReinforcement Map - Cover Depth

mpress ngCo ion Testi

Carbonation Test

Half cell potential test determines the probability of corrosion

activity taking place at the point in the Reinforcement. A higher

probability means more chances of corrosion. This test

measures the probability and not the extend of corrosion.

Pile Inte Testgrity

Drawing preparation

Structural Testing Services

Used extensively in preparation of as built drawings, these

instruments have a typical range of 50 meters with an accuracy

of few mm. With specially fabricated jigs, measurements of high

beams up to 30 meter level can also be taken. These

measurement readings are plotted to prepare as built drawings

of structures.

Distance Measurement

Reinforcement Location

Using Reinforcement locators, site engineer can quickly

distinguish between structural and non structural elements.

This information is very useful to prepare as built structural and

architectural drawings.

Endoscopic Inspection

Designed to capture and measure the frequency of sound

generated by a surface under impact of a hammer, this test

indicates hollowness or problems in bonding of underlying

surfaces. Typical examples include assessing the soundness of

cover and plaster of slabs, porches, chajjas etc.

Using standard thickness measurement devices, crack width is

measured either one time or over a period of time say, 6 months,

specially fabricated devices ensure that measurements are

taken exactly at the same place again and again for plotting

historical trends. ideal for structural designers to check

progressive development of cracks, this is an quick, low cost

method.

Crack Width Measurement

Impact Sound Test

Ideal for inspection in false ceilings, crevices and other difficult

to inspect areas, this computer based system is designed to

capture still photos and videos of the hidden surface. Ideal to

capture spalling above false ceilings during inspection and other

applications, this test is a critical test

Visual Inspection

Reinforcement Mapping

Reinforcement

This method is used to assess reinforcement bar diameter and

spacing of main bars and stirrups. For new structures it can be

used to determine the exact usage of steel. In old buildings this is

used to gather information on the reinforcement, not available or

otherwise. This information is then used to prepare the structural

drawings as constructed.

Endoscope with USB interface

Crac easurementk Width M

Reinfo ping- Covercement Map r Depth

Conforming to IS 256:2000, these tests are designed to

measure the PH value of concrete and determination of

sulphates and chloride content in concrete. Samples collected

on site are transported to the laboratory for further processing.

Chloride Profile Test

Using sophisticated onsite and laboratory methods, the

chloride content is plotted against depth. This gives an

indication of the extent of chloride content across the structural

member.

Ph Chloride and Sulphide Tests

Chemical Tests on Concrete

PH Testing Kit

Chloride Testing Kit

Distance Measurement

Reinforcement Locator

Structural Testing Services*

www.aaryans.in Aaryan Structcon Pvt.ltd.

Laboratory Address: K-218, Ansa industrial Eastate, Sakinaka, Mumbai 400 072, India.

Head Office: 515, 5th Floor, A Wing, Sagar Tech Plaza, Andheri Kurla Road, Sakinaka Junction, Andheri (East), Mumbai-400 072. India.

Tel : (+91-22) 2852 5505, 67105033 Fax : (+91-22) 2852 5524,E-mail: projects@aaryans.in

Sakivihar road,

Conducted over a period of 72 hours, this test confirms to IS

456.:2000 clause 17.6 An elaborate system of cables and dial-

gauges ensures that the test is rapid, does not require any special

construction (like columns) to be done and is done with available

material at site (sand bags).

Slab Load Test

Moisture Content

Measuring the moisture content in elements like timber and plaster,

this tests indicates the quality of the material especially after ageing

over a long number of years.

Temperature Sensor

Designed to detect surface welds, the test generates patterns that

are photographed for reference. Ideal for key welds where defects are

visible to the naked eye, this is a quick test applicable for steel

structures.

Dye Penetration Test

+91-9323189822 (Mumbai)+91-9930264726 (Delhi)

Ultrasonic Thickness Gauge

Recommended for most of the steel structures, the thickness

measured is compared with the standard section thicknesses. A

reduction is measured in percentage.

Measuring temperature over a period of time and capable of logging

this data to a central server, this measures the ambient temperature at

the site. Ideal for checking effects of temperature on the casting of

concrete, this data helps the site engineer to control the environment

to ensure good quality of concrete.

Pile Dynamic Test

Pile Foundation Tests

Steel Members and welds

Ultrasonic Thickness Gauge over coatings

Normally, steel thickness gauges do not measure thickness over

coatings. Using the latest globally available instrumentation

technology, this test measures the steel thickness from upto 20 mm

of coatings and underwater, making it the ideal choice for marine

applications and industrial applications.

Magnetic Particle Test

Designed to detect sub surface welding defects, the test generates

patterns that are photographed for reference. Ideal for key welds

where defects are not visible to the naked eye, this is a quick test

applicable for steel structures.

Slab Load Test

Dye Penetration Inspection

Ultra Thicknesssonic Gauge

Pile Dynamic Test

Magne ic Particle Testi g Yoket n

* Test in this brochure are not covered under NABL Accreditation

Pile dynamic test is used to assess the load bearing capacity of the

pile. This test uses a hammer of a couple of tons to drop on the pile.

Displacements are measured using a high tech instrument. This data

is processed to arrive at the pile dynamic load bearing capacity as per

IS-2911 (part-1 section-1).This test is easy to conduct and requires

very few site arrangements

Verticality Check

Stability Check

Designed to check the verticality of the structure, using standard

plum and distance measuring devices, this test uses sophisticated

instruments to compare the verticality to the acceptable levels as per

national building code.

Slab Deflection Test

Using a system of weights and calibrated scales, the slab deflection is

measured at the ends, middle and midpoints. The results of the

deflection are then compared with the national building codes for

checking acceptable limits.

Temperature Sensor

asonic Th ge Ultr ickness Gauatingsover co

Verticality Check

Moisture Meter

How often have we observed that RMC cube results pass

yet, strength of in-situ cast concrete members is as low as

20%? It is a mistaken assurance that using ready mix

concrete (RMC) solves the problem thinking that concrete

quality is assured. RMC only assures the raw material

strength (concrete). While casting on site, due to

variations like time of casting, workability, compaction,

curing etc, strength differs significantly. Just raw material

testing (concrete quality testing by crushing cubes to

ascertain strength) may not result in similar strengths in

the structural elements like beams, slabs and columns.

Studies show strength variation from 20% to 100%. This

huge variance is simply not acceptable in today’s modern

quality conscious age.

Current Practises.

QA is either done by Executing Agency or PMC. If in scope

of executing agency, it is a mere formality and does not

produce the desired quality assurance. PMC is usually not

a subject expert in concrete quality and have their own set

of primary activities defined.

Stability Certification by Structural designer is based on

either an assumption that in-situ concrete quality in as per

design or could is based on random testing of the

structure. Usually, when problems are noticed, sample

testing is done, projects are stalled and detailed

investigation are carried out.

Proven return on investments by savingcosts and time.

Applicable for high strength concrete,high rise structures too.

Implement for new and rehabilitation projects.

Can be introduced at any stage of RCC work.

Comprehensive 3 tier quality assurance program.

Analyzing the causes

Aaryan SQ process for Safety

Assured returns on investment:

Introduction in new and on going projects

For a very small drop in density, the strength drops by

exponentially. Another factor affecting the strength is curing

process. These 2 causes combined, cause a dramatic drop in

concrete strength.

Aaryan SQA process focuses on the structural safety aspect

and an independent third party methodology. With reporting

directly to the customer and designer, the key stakeholders in

the project get a true picture of the status periodically. SQA

assures STRUCTURAL designer of the structural quality. The

end user is assured of long life and quality of structure.

With SQA, over-design can be reduced safely to an extent,

lowering costs. This is with an assurance that the in-situ

concrete strength now matches very closely to the design

strength. Costs are very affordable , Typically 1%-2% of RCC

construction costs and in the range of 0.2% of the project cost.

As SQA goes in parallel to the construction, there is no

slowdown in work. On the contrary, an early warning system

saves time, by allowing you to take corrective action

immediately and preventing the project from being stalled. A

defined ROI is realized by Design optimization and no loss of

schedule. This recovers SQA investments multifold.

For new projects in contract drafting stage, SQA can be made

a part of the planning and contract document itself. For

existing projects, SQA can be introduced at any stage of the

project.

SQA is widely used in Third Party Inspection (TPI) for commercial and residential structures

including buildings, factories, power plants, irrigation structures etc. A three tier, customized

audit covers the entire scope of RCC works in new and rehabilitation projects.

Background:

Rise of the high rise structures.

With high rise structures in the vogue, using higher

strength of concrete (upto M80-M100 grade) at times in

design, the on site quality assurance assumes a very

significant role.

Structural Quality Audit (SQA)Assuring in-situ strength

in RCC structures.

Primary role is adhering to the quality manual and following the process on a day to day basis

The agency follows laid down standards for material procurement and execution of work.

The process given below highlights the key steps taken during various stages of the project

and the agencies responsible for implementing them.

The remedial measures given below are typical (not exhaustive) in nature and indicate the

types of common methods uses for remedies to enhance in-situ strength in concrete.

Recommended for low strenght and compaction related problems. Typically used for 20-

30% lower strengths. Vaccum grouting is recommended for high strength concrete.

Carries out regular audits of quality of work being excecuted by the executing agency.

Check the testing facility setup on site, Perform periodic quality checks using Non

destructive tests at site. Prepare and submit report in specified format. Co-relate site tests

with cube results for comparison. Perform surprise checks at site. Report results. Submit

copy of the structural testing to the Structural designer periodically.

Preparation of quality control manual, defining specific formats and detailed methods.

Along with the RCC designer, arrive at the best techo commercial method to undertake

repairs.

Specialized structural repair contractors are engaged to repair the structure. This ensures

that correct material and procedure are implemented by experts to get close to desired

results.

Using NDT methods, test the structural parts again to assure quality. This step assures the

effectiveness of the repair methods implemented on site.

Submit final quality assurance report to the Customer and Structural Designer.

Inspects, conducts relevant tests to ensure compliance by the execution agency on a day to

day basis. This is to ensure the compliance of day quality standards.

3 tier quality assurance process.Excecution agency

Grouting

Before site execution begins: PMC and SQA Agency.

During Execution: Structural Quality Audit SQA Agency

Arriving at plan of action. Structural Designer

Specialized agencies for repairs. Repair Agency

Post repair testing. SQA Agency

Final report: SQA Agency.

Project Management Consultant

The Structural Quality Audit agency

Detailed process

Typical Remedial Measures

Structural Quality Audit (SQA)Assuring in-situ strength in RCC structures.

Aaryan Structcon

Sagar Tech Plaza, Andher i Kur la Road,

S a k i n a k a J u n c t i o n , A n d h e r i ( E a s t ) ,

Mumbai-400 072. India.

Tel : (+91-22) 2852 5505, 67105033

Fax : (+91-22) 2852 5524,

E - m a i l : i n f o @ a a r y a n s . i n ,

W e b S i t e : w w w . a a r y a n s . i n

Aaryan St ruc tcon. A l l r igh ts reserved.

All other trademarks belong to respective

owners. Aaryan Structcon.

. 515, 5th Floor, A Wing,

Recommended where grouting may not give desired results. However, this results in

increase in member sizes, which may not be aesthetically appealing.

Jacketing

Extended curing by studying mix properties. This simple method sometimes yields dramatic

results.

Curing

Where low strength can not be rectified by any of the above methods, demolition may be

carried out. Usually as the last resort, as it directly affects the project timelines. Demolition

and recasting may not guarantee desired strength as it is again subject to site conditions.

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www.aaryans.in

+91-9323189822 (Mumbai)+91-9930264726 (Delhi)