Lightweight, low water content cementitious compositions and methods of their production and use
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United States of America Patent
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Apr 22, 1997
Issued Date -
N/A
app pub date -
Oct 2, 1995
filing date -
Dec 19, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved lightweight cementitious product made up of an aqueous cementious mixture that can incorporate fly ash, portland cement, sand, lime, and the weight saving component, which is micronized polystyrene particles having particle sizes in the range of 50 to 2000 microns, and characterized by having very low water contents, in the range of from about 0.5% to 5% v/v. The ultra low water compositions can be extruded and can be molded under high pressure.
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