Monday, December 12, 2011

Dufferin Construction Selects G&Z Slipform Paving Spread For Canada’s Longest Runway

Concrete Slipform Paver

To build what will be the longest airport runway in Canada, Dufferin Construction Company, a division of Holcim (Canada) Inc. recently purchased a three-machine spread of concrete paving equipment from Guntert & Zimmerman. Ontario-based Dufferin Construction , which already owns two other G&Z pavers, bought an S1500 four-track Slipform Paver, a PS1200 Placer Spreader, and an TC1500 Texture Cure Machine for this project.

The big project is at Calgary International Airport in Alberta, where Dufferin’s contract calls for more than 1 million square meters (1.2 million square yards) of new concrete surface. Construction has already started. Dufferin essentially will have two construction seasons – 2012 and 2013 – to complete the work, which is scheduled to wrap up by May 2014....Read More.

For More Information Visit

Tuesday, November 15, 2011

New TeleEndXL: Telescopic Paving Kit End Section

TeleEndXL for Concrete Slipform Paver
The TeleEnd: Telescopic Paving Kit End Section was originally released with 3 feet (0.9 m) of quick width change capability.  G&Z has now introduced the TeleEndXL.  The New TeleEndXL features 4 feet (1.2 m) of quick width change capability.  The New TeleEndXL allows the contractor 8 feet (2.5 m) of quick width adjustment when the paving kit is fitted with two TeleEndXLs.  This telescopic range adds to the argument that G&Z slipform pavers are the most versatile machines on the market.

TeleEndXL Drawing for Concrete Slipform Paver

G&Z’s TeleEnd has revolutionized the way contractors change slipform paver paving kit widths.  The TeleEnd allows the contractor to perform width changes quickly and with fewer personnel.  The TeleEnd is made up of a telescopic terminal that can be filled with easy to install add-in paving kit spacer sections.  The Add-in Paving Kit Spacer Sections are made up of three components: a front spacer, a rear spacer, and a bottom pan section.  The pans have a “tongue and groove” connection to engage the front spacer and fine level adjusters to attach the rear spacer. There are line up dowels on the spacers and pans to guide the sections together meaning there are no bolts to fix the sections as they are held together by hydraulic clamping forces.

Not all contractors necessarily require the ability to change widths in the middle of a pour, however many do want the capability to change widths quickly in between pours.  Presently, the market offers concrete paving equipment which utilizes variable and quick width solutions but can not meet tight smoothness specifications.  Today’s market requires contractors to have the ability to change widths quickly to meet production schedules while not sacrificing smoothness. The G&Z TeleEnd answers both the need for quick width changes as well as the ability to achieve smooth pavements.  Because of the quick width change capability the contractor has a better chance of paving everyday.

For More Information Visit

Monday, June 13, 2011

Construction Profiles - Spring 2011

The new issue of Guntert & Zimmerman's Construction Profiles has just been completed. The latest issue features a full story detailing the market launch of the S600. Paving at Medan Airport in Indonesia is also featured. Click on the link above to read the latest from G&Z.

For More Information Visit

Monday, April 4, 2011

Guntert & Zimmerman Partners with Leica Geosystems

Stringless Concrete Slipform Paver

Starting in late 2008, Guntert & Zimmerman (G&Z) and Leica Geosystems partnered together with the goal of 3D stringless technology to a customer base focused on ride smoothness.  No one has every argued about the huge potential benefits of 3D stringless paving; however, prior to this time, stringless technology was widely considered by contractors to be more suited to airfield paving and highway paving under less stringent smoothness specifications.  This perception was changed in late 2009 when G&Z and Leica Geosystems partnered with Flynn Construction of Dubuque, IA on their 10.5 mile Highway 65 Demonstration project near  Mason City, Iowa where Flynn’s G&Z S850 paver was controlled using Leica’s industry-standard LMGS-S stringless concrete paving system. 

Under Iowa’s very strict zero blanking band smoothness specification, Flynn earned 100% of the available smoothness bonus and did zero grinding.  The smoothness achieved on the Flynn I-65 project established a new paradigm using Leica’s LMGS-S,  ride was indisputably proven to be as good as the best stringline-guided slipform paving.