Method for repairing sewer pipes
作者： William H. Taylor , Warren C. McMordie , Robert B. Bennett
DOI:
关键词: Magnesium 、 Geotechnical engineering 、 Inner diameter 、 Cement 、 Marsh funnel 、 Composite material 、 Materials science 、 Outer diameter
摘要: A sewer pipe is repaired by inserting a thin, flexible liner within the pipe. The has an outer diameter less than inner of pipe, whereby annular space presented between and This filled with low viscosity magnesium based cement, such as oxychloride cement or oxysulfate which maximum Marsh funnel 40 seconds per quart.
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