Lightweight insulating concrete
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United States of America Patent
Stats
-
Feb 15, 1983
Grant Date -
N/A
app pub date -
Nov 4, 1981
filing date -
Nov 4, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lightweight insulating concrete having a K value of not more than 0.75, a compressive strength of at least 125 psi and consisting essentially of portland cement, pumice, silica and pulping waste liquor solids. A method of producing a foamed insulating concrete comprising incorporating a hydrolyzed protein based aqueous foam in a slurry of portland cement, pumice, silica, pulping waste liquor and water to form a foamed concrete slurry and then curing the concrete slurry to a solid rigid concrete.
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