Precast concrete component material mixture and method of precasting
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United States of America Patent
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Jan 24, 2012
Grant Date -
Sep 23, 2010
app pub date -
Sep 30, 2009
filing date -
Mar 20, 2009
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Abstract
of water; carboxylic acid superplasticizer, which is 0.7 to 2.0 wt % of the total usage of the pozzolan and cementing material; and steel fiber accounting for 0.5 to 1.0% of the total volume.
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