Secondary Containment Systems

Mechanically Stabilized Earth Wall Gets Coated for Land Fill

Job Description: The City of Bend, Oregon was in search of a fast cure coating to reinforce the 1,250 foot long retaining wall of the city land fill. POLYSHIELD SS-100® was chosen based on its superior strength, ability to bond tenaciously to the existing geotextile fabric, as well as for the fast turnaround time (tack free in less than a minute). An additional benefit of using the POLYSHIELD SS-100® is the ability to spray any thicknes in a single application. The application of POLYSHIELD SS-100® reinforced the wall and eliminated leaks through the fabric. Coating the woven geotextile fabric with POLYSHIELD SS-100® increased landfill capacity by 1.2 million cubic yards, resulting in an additional two to four years of service life at the facility.

Other Coatings Evaluated for Project: CIM, a urethane coating, was also considered for this project, but found to be impractical due to the slow rate of cure in the relative working temperatures along with the fact that it would take multiple coats, further delaying project completion. It was also determined that this coating could not effectively penetrate the geotextile fabric that wrapped the wall.

Project:
Landfill (Wrap Face) Perimeter Wall
Bend, OR

Owner:
City of Bend

Installing Contractor:
Cascade Industries