Canadian Underground Infrastructure - May/June 2016
Failing manholes in Edmonton and tiny Yukon community treated with Permacast and Centripipe spray liners by AP/M Permaform
BY ANGUS W. STOCKING
Canadian contractors are costeffectively rehabilitating failing manholes and sewers without excavation or barrel replacement using the Permacast and CentriPipe systems developed by AP/M Permaform (AP/M) and distributed by Martech, Inc. Edmonton-based OSCO Mudjacking & Shotcreting Ltd. applied Permacast on two manhole projects with widely varying challenges:
• A new 9-metre manhole installed as part of Edmonton’s massive project converting the QE II Highway and 41 Avenue SW connection to a grade-separated interchange.
• Six failing manholes in remote Carmacks, a Yukon village.
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