Slag cement
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United States of America Patent
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Aug 17, 2004
Issued Date -
N/A
app pub date -
Mar 31, 2003
filing date -
Oct 5, 2000
priority date (Note) -
Expired
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Abstract
A slag cement having an improved early strength and containing aluminosilicates, blast furnace slag, clinker and CaSO.sub.4, has a content of 70 to 95% by weight of blast furnace slag used in the ground form at >4,500 Blaine (cm.sup.2 /g) with no more than half of this portion being substitutable by aluminosilicates such as fly ash, alumina, marl or the like, 0.1 to 2% by weight of clinker, sulfate in amounts of below 5% by weight, calculated as SO.sub.3, and 0.3 to 1% by weight of a superliquifier such as, e.g., naphthalene sulfonate.
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