Title: Trenchless Pipe Rehabilitation: An Overview of Resin Alternatives to Meet Industry Needs

Authors: Olivia E. Watkins

DOI: 10.33599/nasampe/c.19.0697

Abstract: The trenchless pipe rehabilitation industry is an attractive and economical alternative to the traditional “dig and replace” method for pipe reconstruction by reducing or eliminating the costly and time-consuming need for excavating damaged pipelines. An added benefit of pipe rehabilitation is the extension for the lifetime of aging pipelines. In this rehabilitation process, a resin-infused liner is either inverted or pulled through the damaged pipe and cured with steam or hot water, creating a cured-in-place pipe (CIPP). Within this industry, there is a growing need for resins systems with longer working time, which reduces the need for on-site preparation, and the ability to cure at lower temperatures. This presentation discusses the different CIPP resin technologies for pressure pipes with an emphasis on how their characteristics, properties, and performance meet current industry needs. Results for the application of epoxy-based resin systems to this technology will be presented.

References: 1. [ASCE (American Society of Civil Engineers), 2017. Infrastructure Report Card. A Comprehensive Assessment of America’s Infrastructure. https://www.infrastructurereportcard.org/, 2017 2. Pridmore, A.B. & Ojdrovic, R.P. “Types of Pipe Repaired with Composites: Water Supply and Sewage Pipelines” Rehabilitation of Pipelines Using Fiber-Reinforced Polymer (FRP) Composites. 1 – 15. 2015 3. ASTM F1216-16, “Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of a Resin-Impregnated Tube,” ASTM International, West Conshohocken, PA, 2016, www.astm.org 4. Allouche, E., Shaurav, A., Jadranka, S., Sterling, R., Condit, W., Headington, B., Matthews, J., Kampbell, E., Sangster, T., Downey, D. “A Retrospective Evaluation of Cured-in-Place Pipe (CIPP) Used in Municipal Gravity Sewers.” 2012 5. Sendesi, S.M.T., Ra, K., Conkling, E.N., Boor, B.E., Nuruddin, M., Howarter, J.A., Youngblood, J.P., Kobos, L.M., Shannahan, J.H., Jafvert, C.T., Whelton, A.J. “Worksite Chemical Air Emissions and Worker Exposure during Sanitary Sewer and Stormwater Pipe Rehabilitation Using Cured-in-Place-Pipe (CIPP),” Environ. Sci. Tech. Lett. 2017, 4, 8, 325-333 6. Pham, H. Q. &Marks, M. J. “Epoxy Resin,” Ullmann’s Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH Verlag, 2005. 7. ASTM D790-17, “Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials,” ASTM International, West Conshohocken, PA, 2017, www.astm.org 8. ASTM D638-14, “Standard Test Method for Tensile Properties of Plastics,” ASTM International, West Conshohocken, PA, 2014, www.astm.org 9. Ozgul, E.O., Ozkul, M.H., “Effects of Epoxy, Hardener, and Diluent Types on the Workability of Epoxy Mixtures,” Const. Build. Mat. 2018, 158, 369-377

Conference: CAMX 2019

Publication Date: 2019/09/23

SKU: TP19-0697

Pages: 11

Price: $22.00