Mineral binder and compositions employing the same
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United States of America Patent
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-
Feb 10, 1987
Grant Date -
N/A
app pub date -
Mar 6, 1985
filing date -
Mar 6, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A binder composition for Portland cement is disclosed, said composition including 100 parts by weight metakaolin and, based upon said metakaolin, from 20 to 70 parts by weight slag; from 85 to 130 parts by weight of at least 1 material selected from the class consisting of fly ash, calcined shale, and calcined clay; from 70 to 215 parts by weight finely divided silica, preferably amorphous silica; and from 55 to 145 parts by weight of a mixture of potassium silicate and potassium hydroxide, wherein at least 55 parts by weight is potassium silicate. The binder composition can be mixed with Portland cement or with a combination of Portland cement and fly ash to provide a composition curable to a material having a high early strength and a high ultimate strength.
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