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RECORD NUMBER: 1 OF 6

Main Title Performance Evaluation of an Innovative Fiber Reinforced Geopolymer Spray-Applied Mortar for Large Diameter Wastewater Main Rehabilitation in Houston, TX.
Author Matthews, J. C.; Condit, W.; Vaidya, S.; Stowe, R.; Selvakumar, A.
CORP Author Battelle Memorial Inst., Columbus, OH.; Environmental Protection Agency, Cincinnati, OH. Office of Research and Development.
Year Published 2014
Stock Number PB2015-103698
Subjects Geopolymer coatings; Geopolymer composites; Reinforced concrete pipe; Reinforcements (Structures); Fiber reinforced adhesives; Texas; Performance; Excavation; Performance evaluation; Concret structures; GeoSprayTM technology; Houston (Texas); portland cement (OPC)
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB2015-103698 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 02/03/2016
Collation 63p
Abstract This report describes the performance evaluation of a fiber reinforced geopolymer spray-applied mortar, which has potential as a structural alternative to traditional open cut techniques used in large-diameter sewer pipes. Geopolymer is a sustainable green material that incorporates recycled industrial byproducts and has been shown to have improved chemical and physical properties compared with ordinary portland cement (OPC). GeoSprayTM, produced by Milliken Infrastructure Solution, LLC (Milliken), was used to rehabilitate a 60-in. reinforced concrete pipe (RCP) sewer main in Houston, Texas. The 25-ft depth of the pipe and other site-specific conditions precluded open cut excavation and the need for a shortened bypass time contributed to the selection of the GeoSprayTM technology. The project was completed in a two-week timeframe including four spraying passes on 160 ft of 60-in. RCP. The host pipe was severely deteriorated with corroded and exposed steel reinforcements and several locations of heavy water infiltration, which led to the product being manually spray applied by hand rather than using a sled.
PUB Date Free Form Dec 2014
Category Codes 68D | Water Pollution & Control; 48G | Hydrology & Limnology; 71F | Composite Materials; 71I | Fibers & Textiles; 89G | Construction Materials, Components, & Equipment; 89C | Construction Management & Techniques; 50C | Construction Equipment, Materials, & Supplies
Document Type NT
Medium PC | AC
Cataloging Source EPAORD
Origin NTIS
Type CAT