Geopolymer Nanoceramic Mortar Liner System for Corrosion Protection and Rehabilitation of Stormwater Piping: Final Report on Project F14 AR05
ERDC-CERL CHAMPAIGN United States
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Many metal pipes and culverts on Department of Defense DoD installations are deteriorating due to corrosion. Repair often requires excavation, including roadways above culvertsa costly, messy, and disruptive approach. This project successfully demonstrated and validated a geopolymer liner system at Fort Bragg, NC. The evaluation focused on strength, corrosion resistance, and implementation to ultimately recommend use of geopolymer liners for DoD stormwater and wastewater infrastructure. A new Unified Facilities Guide Specifications UFGS, UFGS 33 01 30.71 Rehabilitation of Sewer Utilities, was created to guide adoption of this technology, and a draft criteria reference request was created for UFGS 33 40 00 Storm Drainage Utilities. Caution is advised, however, for using a geo-polymer liner in extremely acidic environments. Testing showed that geopolymer material provided higher compressive strength than typical concrete. Acid resistance could not be verified, however, although the product still may be suitable in wastewater environments. The primary advantage of a geopolymer liner is its ability to create a new structural pipe within the old, deteriorating pipe a no-dig approach that saves costs. The geopolymer liner also provides other benefits such as no cold joints, faster cure time, and less down time. The projects return on investment is 7.73 over 30 years.
- Logistics, Military Facilities and Supplies
- Pumps, Filters, Pipes, Tubing, Fittings and Valves