These cyclic tests represent an extreme condition that this pressure class AWWA C-900 PVC pressure pipe would rarely be subjected to in service. ... Several such 0-rings that needed replacement had worn flat through approximately 1/4 of their diameters. ... In examining the 1/4 inch steel end caps following the testing, fatigue cracking was very evident around the entire circumference of the 1 inch drilledanbsp;...
|Title||:||Proceedings of the International Conference on Underground Plastic Pipe|
|Author||:||American Society of Civil Engineers. Pipeline Division|
|Publisher||:||American Society of Civil Engineers - 1981|