Grouting Effects on Performance of Sliplined Steel Pipes
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2019-11-01
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Edition:Final Report, September 2016–April 2019
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Abstract:Culverts and pipes installed under roadways several decades ago are reaching the end of their service life. Excavation and replacement of these buried structures will cause disruption to their service and require significant funding. Trenchless methods (e.g., sliplining) have been increasingly used to rehabilitate deteriorated buried structures (e.g., corroded steel pipes). Sliplining involves placement of a new pipe liner inside an existing deteriorated pipe and filling of grout between their space. The objective of this study was to evaluate the effect of sliplining on the behavior of corrugated steel pipes with different degrees of corrosion under loading. In this study, parallel-plate loading tests were carried out to evaluate the effect of sliplining on the behavior of corrugated steel pipes with different degrees of corrosion (0%, 50%, and 90%) in air.
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