Potential Breakthrough for Municipal Water and Sewer Pipe Foreseen.

Advanced Materials & Composites News,  July, 2002  

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Domestic and international infrastructure projects for water and sewer pipe may benefit from a new, pressure pipe development that lightens pipe weight while handling compression and pressure loads. Concrete is poured through openings into the annulus between two composite skins to provide a high-pressure concrete pipe able to resist compression loads.

Fig. 1 - The pipe shown is 24 inches in diameter and able to resist pressure in excess of 500 psi and support (when loaded in a parallel plate test per ASTM and AWWA C950 ) in excess of 2000 pounds per lineal foot. A double-wall ...

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