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Water-based cement including boiler ash as chemically active ingredient

United States Patent Application

20040025752
A1
View the Complete Application at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
A chemically-bonded cement material and concrete which includes a calcium aluminate component, a calcium silicate component, a sodium phosphate compound, and bottom ash which chemically reacts with the sodium phosphate compound to produce calcium phosphates. The chemically bonded cement may include a polymeric compound, such as acrylic-styrene copolymer, and fibrous materials, such as E-glass fibers, carbon fibers, or polypropylene. The concrete includes the chemically-bonded cement and aggregates. The materials are well suited as rapid setting repair patching and fill for damaged roads, remediating material for contaminated soil and as backfill underlayment, and as high strength precast concrete products.
Sugama, Toshifumi (Upton, NY)
10/ 603,991
June 26, 2003
[0002] This invention was made with United States Government support under BNL Work for Others Subcontract No. NF-01-03, Prime Contract No. DE-AC02-98CH10886 awarded by the Department of Energy. The United States Government has certain rights in this invention.