Concrete admixture compositions
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United States of America Patent
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Jan 5, 1993
Issued Date -
N/A
app pub date -
Nov 12, 1991
filing date -
Sep 19, 1986
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Abstract
A chloride-free admixture for use as a cold weather (e.g., 13.degree. F. to 40.degree. F.) concrete set accelerator. The admixtures comprise; 1) at least one soluble inorganic salt having freezing point depressant properties, 2) at least one water reducing dispersant, e.g., superplasticizer, 3) at least one inorganic early set and strength accelerator, and optionally, 4) at least one inorganic set accelerator.
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