Cementitious matrix and fiber reinforced cement based mixture
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United States of America Patent
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Aug 25, 2015
Grant Date -
Jun 18, 2015
app pub date -
Aug 19, 2013
filing date -
Aug 21, 2012
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Abstract
A cementitious matrix in which the development of early strength is fast, the hydration heat temperature is small, and the amount of shrinkage during curing is small, while keeping the fluidity when concrete is fresh, is provided. The cementitious matrix is characterized by comprising 100 parts by weight of Portland cement, 5 to 30 parts by weight of silica fume, 5 to 25 parts by weight of limestone powder, 30 to 80 parts by weight of at least one of ground blast furnace slag or fly ash, at least one chemical admixture, water, and 70 to 150 parts by weight of aggregate having a largest aggregate diameter of 1.2 to 3.5 mm.
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