Many utilities are seeking innovative rehabilitation technologies to extend the life and fix larger portions of their water distribution systems with current funding levels. The information on the capabilities and applicability of new technologies is not always readily available or easy to obtain from an independent source. To meet these needs, the U.S. Environmental Protection Agency (EPA) developed an innovative technology demonstration program to evaluate rehabilitation technologies that have the potential to reduce costs and increase the effectiveness of the operation, maintenance, and renewal of aging water distribution and wastewater conveyance systems. This paper provides an impartial assessment of the effectiveness and cost of a spray-on polymeric lining technology for water main rehabilitation. The spray-on lining technology ultimately resulted in a liner failure, which was discovered during the post-rehabilitation flow test, which was part of the demonstration protocol QA/QC activities. The failure discovery was important in helping to identify material formulation issues and subsequent analysis of the potential causes of the failure indicated that moisture conditions (previously not experienced in product development and use) prevented a proper chemical reaction from occurring, which greatly reduced the material properties, resulting in a lining collapse. Recommendations for the study of important issues such as the effect of ambient conditions on the resin curing process, cleaning requirements for surface preparation, and other key issues in order to help to better understand the technology are made to help avoid the occurrence of future failures with this technology.
Skip Nav Destination
Article navigation
Research Article|
March 01 2012
Demonstration and evaluation of an innovative water main rehabilitation technology: spray-on polymeric lining
John C. Matthews;
1Battelle Memorial Institute, Baton Rouge, LA 70817. E-mail: [email protected]
E-mail: [email protected]
Search for other works by this author on:
Ariamalar Selvakumar;
Ariamalar Selvakumar
2U.S. Environmental Protection Agency, NRMRL, Edison, NJ. E-mail: [email protected]
Search for other works by this author on:
Wendy Condit;
Wendy Condit
3Battelle Memorial Institute, Columbus, OH. E-mail: [email protected]
Search for other works by this author on:
Raymond L. Sterling
Raymond L. Sterling
4Louisiana Tech University, Trenchless Technology Center, Ruston, LA. E-mail: [email protected]
Search for other works by this author on:
Water Practice and Technology (2012) 7 (1): wpt2012008.
Citation
John C. Matthews, Ariamalar Selvakumar, Wendy Condit, Raymond L. Sterling; Demonstration and evaluation of an innovative water main rehabilitation technology: spray-on polymeric lining. Water Practice and Technology 1 March 2012; 7 (1): wpt2012008. doi: https://doi.org/10.2166/wpt.2012.008
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
eBook
Pay-Per-View Access
$38.00