Author : Balvant Rajani,AWWA Research Foundation
Publisher : American Water Works Association
Page : 294 pages
File Size : 50,7 Mb
Release : 2000
Category : Cast-iron pipe
ISBN : 9781583210635
Investigation of Grey Cast Iron Water Mains to Develop a Methodology for Estimating Service Life by Balvant Rajani,AWWA Research Foundation Pdf
The principal objective of this research project was to develop a methodology that would assist water distribution engineers estimating the optimum time to replace grey cast iron water mains. The methodology should integrate information on corrosion-induced pit dimensions, effective pipe wall thickness, residual strength of grey cast iron, corrosion rates and the mechanical behavior of metallic water mains. Secondary objectives within the project were: to determine the most effective and practical approaches to measure the residual strength of grey cast iron pipe; to determine whether current or near-term nondestructive testing technology could be used to produce the necessary information on corrosion put dimensions; and to expand the current state of knowledge with respect to the mechanical behaviour of grey cast iron water mains.