Additive for the preparation of ecological permeable concretes with high compression, bending and abrasion resistance, and production process
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United States of America Patent
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Dec 9, 2003
Grant Date -
Apr 3, 2003
app pub date -
Jul 10, 2001
filing date -
Jul 10, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An additive for elaboration of ecological permeable concretes. The additive containing from about 24.5% to 28.2% by weight of a mixture made of dispersing agents, from about 3.3% to 3.8% by weight of a humectant agent, from 0 to about 1% by weight of a non ionic surfactant, from 0 to about 3% by weight basis of a bactericidal agent, from about 3.3% to 3.8% by weight of hydroxypropylethyl or methylcellulose from 0 to about 0.3% by weight of an antifoaming agent and from about 55.8% to 64.2% by weight of a highly reactive non-crystalline calcinated silica aluminant.
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