Case Studies

Residential Case Studies: Concrete Road Lifting & Repairs

Thursday, January 24th, 2019 by Diane Burden


Concrete road lifting to correct concrete and curb segments which were uneven or had pooling water. Additionally, some sidewalk locations within the assigned road segment also needed to be lifted to correct deficiencies. The polyurethane material needed to be environmentally friendly, proven not to leach off gas or negatively impact the surrounding area in any way. Provide the Contract Administrator the polyurethane manufacturer specifications to validate compliance.


Concrete road panels were lifted using shrink-resistant high-density, closed cell, polyurethane system. The polyurethane material met the following properties: 

• Density – minimum of 2 lbs/ft3 as per A.S.T.M. 1622
• Compressive Strength – minimum of 35 psi as per A.S.T.M. 1621

All saw cutting performed used water to suppress dust. Dry saw cutting was not permitted. Drill insertion points in concrete roadway panels (depth of panels usually range between 200 mm and 250 mm). More than one (1) injection point required to obtain the desired grade. Injection holes were not greater than 5/8” (16 mm). Supplied and placed polyurethane expanding foam meeting the requirements of SPC-3 to raise concrete panels. Filled injection holes with fast-setting Portland cement mortar/grout mix, flushed with roadway and trowel finish. Removed and disposed of asphalt patches previously used for ramping uneven panels, as well as any debris resulting from the lifting operation. Protected work area until the high-density polyurethane was set and ready for traffic within 15 minutes.

Project Summary

Project Manager: The Corporation of The City of Brampton

Certified Installers: Canadian Concrete Leveling

Product Installed: Polyurethane

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Canadian Concrete Leveling
12045 McCowan Road Suite 2
Stouffville, ON L4A 4C3
Canadian Concrete Leveling service area