AWWA ACE69070

This powerpoint presentation begins by providing a brief overview of the need for cost efficient,effective infrastructure rehabilitationtechnologies, and the major causes of problems in distribution pipes. Epoxy lining is presented as a non-structural renewal method. Epoxy characteristics are listed, along with the Epoxy Lining process that includes the following:Location / Access;Bypass;Isolation;Cleaning;Inspection (Pre-lining);Lining;Inspection (Post-lining);Disinfection; and,Reconnection. An example is provided of using epoxy lining at the city of McKinney, Texas. The selection process is presented, along with project execution and highlights. Project summary includes the following: 3-year multi-phased project;October 2009 completion target;City Council approved $1m per year for 3 years;average cost of $45 per foot budgeted fortrenchless contractors;as of January 2008, 24,800 feet of estimated68,000 feet has been completed;total costs associated with project average $60per foot vs. $100 per foot for replacement; and,in the last four months of the project only 4 complaints werereceived for discolored or rusty water. The known benefits of epoxy lining are listed and include:protection against future corrosion;prevents colored water and stains;service life established 40-60+ years;reduced friction, increases flow capacity;more effective than flushing by producing long-termsolution to internal pipe corrosion;minimally disruptive to other utilities, infrastructure andenvironment; and,faster and less costly than replacement.

Product Details

Edition:

Vol. - No.

Published:

11/01/2008

Number of Pages:

28

File Size:

1 file , 2.5 MB