Processed mineral additive for reducing concrete
permeability and increasing strength

(10) US 2012/0192767 A1
(22) Jan. 24,2012
(43) Aug. 2, 2012
(76) Terry L. Anderson, Santa Rosa Beach, FL (US); .John Andrew Coleman, Santa Rosa Beach, FL (US); Neal S. Berke, Chelmsford, MA(US)
(57) A durable concrete composition includes a cementitious material comprising cement and ground expanded perlite, coarse aggregate. fine aggregate, and sufficient water for adequate workability. The resulting concrete displays a number of superior properties to conventional concrete, including extremely high thermal resistance coupled with high strength, low chloride ion permeability, and good early...
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BFT 10/2012

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BFT 10/2012

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