Overcoming Constraints of Paving “Speedy” Whitetopping

Presented by

Ronald M. Guntert, Jr. President & CEO

Guntert & Zimmerman

Introduction

How to be Successful and FAST at Paving Concrete Over Asphalt or “Whitetopping”

• Get in, Get Out and Stay Out!• Get it Smooth• Get Rid of or Reduce the Constraints in the

Paving Process that Get in the Way of Finishing!

Introduction

On a typical short, cut up whitetopping project, there can more time spent on:

• Mobilization - loading preparation, loading and unloading, transport

• Maneuvering - walking around the site and• Width Change

than on actual paving!

G&Z has focused on dramatically reducing the time required on tasks other than paving

Days Consumed in a Small Overlay Project with Two Width Changes

9 Days

Mobilization22%

Width Change22%

Maneuvering11%

Paving45%

By Eliminating or Reducing Constraints We Speed to the Finish Line!

5.5 DaysMobilization

9%

Width Change9%

Maneuvering9%

Paving73%

What Are The Constraints to “Speedy” WhitetoppingMachine Constraints• Machine Profile• Machine Width Change• Machine Maneuvering • Machine Mobilization

Paving Constraints• Concrete Mix Design,

Uniformity & Strength Gain• Concrete Surface and

Edge Finishing• Concrete Plant Output &

Delivery• Sawing & Sealing

Operation• Corrective Action (Do it

Right the First Time!)

Machine Profile Physical Constraint to WhitetoppingPaver Profile• Room for Stringline /

Sensor Support Arms• Distance from Edge of

Pavement to Inner Most Point of Crawler Track

• Distance from Outer Most Point of Crawler Track / Machine

Machine Profile – Stringline on One or Both Sides

Machine Profile – “Stringless” or Single Stringline

Machine Profile – “Stringless” or Single Stringline – Milled Surface

Machine Profile – Single String Line Control / No String Line on Traffic Side

Machine Profile – Narrow Profile Machine Design and Single Stringline Control

Machine Equipped with G&Z’s Patented Triple Cross Slope Control

No String Line Required on The Traffic Side with G&Z’s Cross Slope Control

Patented

The Triple Cross Slope System includes Automatic Transition Control for Curves and Varying Cross Slope

“Stringless” Paving - Advantages

• String line takes up and extra approx. 2.5 ft. of room on each side of the paver.

• Once traffic gets past the paver and follow-up machines, this room is available to traffic.

• Setting stringline on overlay projects has a significant impact on total project cost

• Stringless smoothness has proven to be equal or better than the best stringline jobs even on zero blanking band jobs!

“Stringless” Major Players

• There are several major players in stringless technology namely Leica, Trimble and Topcon.

• The worldwide leader in concrete paving applications has been Leica to date.

Machine Profile – Stringless Control

Machine Profile – Stringless Control

Machine Profile – Stringless Control

Machine Profile – Stringless Control

Machine Profile – Stringless Control

Machine Profile – Zero Clearance or “Near Zero” Paving

Side Tie Bars Can Be A Constraint to Narrow Profile Paving

Dowel Bar Inserter Can Also Be Used While Narrow Profile Paving

Dowel Bar Inserter Can Also Be Used While Narrow Profile Paving

Dowel Bar Inserter Can Also Be Used While Narrow Profile Paving

Machine Width Change – Tractor and Paving Kit

Patent Pending

Machine Width Change - Tractor

• NEW (patent pending) Double Telescopic Tractor Frame allows the widest telescopic paving range in the Industry from 8 to 22 ft (2.5m to 6.7m) without the need of bolt-in tractor frame, hose, cable or walkway extensions.

• THIS RANGE COVERS MOST OF THE HALF WIDTH PAVING WIDTHS ENCOUNTERED IN THE MARKET

Machine Width Change - Tractor

NEW (patent pending) Tractor Frame Width Change Rollers & Hydraulic Clamping Pucks:

• Eliminates supporting tractor frame center module when telescoping tractor frame

• Eliminates loosening / tightening conventional clamping puck bolts during width change

Tractor FrameFully Extended –Hose Hinge not Shown

Machine Width Change - Tractor

Patent pending

Tractor Frame FullyContracted – HoseHinge Not Shown

Machine Width Change - Tractor

Patent pending

Machine Width Change - Tractor

Fuel Tank

Machine Width Change - Tractor(optional rollers and hydraulic clamping pucks shown)

Machine Width Change – TractorTelescopic Access Walkway

Machine Width Change – Tractor Telescopic Hose and Cable Hinge

Machine Width Change – Paving Kit“TeleEnds” Telescopic End Sections• G&Z’s Exclusive (Patent Pending) “TeleEnd” Paving

Kit telescopic end sections with 36” (915mm) of telescopic ability per side. The kit also includes enhanced Split Guillotine Sideforms.

Machine Width Change – Paving Kit“TeleEnds” Sections Description• Used in place of standard end sections• 36” (915mm) of telescopic capability on both sides

Machine Width Change

Hydraulic MotorPowered Rotary Actuator Mechanism For Steering Shown

Machine Maneuverability -90 Degree Steering Capability

Machine Maneuverability

“Flip of a Switch” 90 Degree Steering For Rapid Maneuvering

Machine Maneuverability

Machine Maneuverability

Machine Maneuverability320 Degree Track Control

Machine Maneuverability90º Steering

Machine Mobilization

Machine Mobilization“Smart Leg” Feature (Patent Pending)• “SmartLeg” feature with transducer feedback on

swing leg angle always keeps the crawler track “straight ahead” no matter where crawler track is relocated.

• Crawler track can be relocated while the machine is traveling or while stationary and crawler is off the ground and using provided stand.

• Jogging of swing leg can be controlled at ground level

Machine Mobilization(optional “SmartLeg” swing leg cylinder shown)

Patent Pending

No matter where the crawler is relocated withthe swing leg, the crawler track is kept in the “straight ahead” position.

Ground level control

Machine Mobilization“Smart Leg” for Track Repositioning

Optional “SmartLeg” Cylinder Shown

Rotary Actuator for Steering Shown

Patent Pending

Machine Mobilization“SmartLeg” feature used to re-position crawler while off the ground

Machine Mobilization“SmartLeg” Used for Transport• “SmartLeg” feature with transducer feedback on both

the swing leg and crawler track allows the swing legs to quickly and automatically go into the outboard / transport position once the swing leg cylinder is unpinned.

• Going from the working mode to transport mode can be done in less than 30 minutes!

90 Degree Steering / “Smart Swing Leg” –Loading Feature

Designed to Rapidly and Automatically Walk Into The Transport Position

Machine Mobilization“SmartLeg” Used for Transport

Machine Mobilization“SmartLeg” Used for Transport

Machine Mobilization“SmartLeg” Used for Transport

Machine Mobilization“SmartLeg” Used for Transport

Machine MobilizationManeuvering in the Transport Mode

Machine MobilizationManeuvering in the Transport Mode

Machine MobilizationManeuvering in the Transport Mode

Machine MobilizationLoaded on Transport Trailer

Machine MobilizationLoaded on Transport Trailer

All rights to reproduce any part of this presentation are at the sole

discretion of Guntert & Zimmerman Const. Div., Inc.

For additional information contact the Administrative Department at:222 E. Fourth St. Ripon, CA 95366

USAPhone (209) 599-0066 Fax (209) 599-

2021Email gz@guntert.com Web www.guntert.com

Thanks!