Method for the Production of High-Strength, Acid-Resistant Concrete
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United States of America Patent
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Issued Date -
Nov 6, 2008
app pub date -
Apr 5, 2005
filing date -
Apr 5, 2004
priority date (Note) -
Abandoned
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Abstract
In a method for the production of high-strength, acid-resistant concrete by use of water, hydraulic binder and aggregates, a hydraulic binder containing aluminosilicates, calciumsulfate and an activator containing salts of alkalimetals is applied wherein the aluminosilicates are chosen from the group consisting of furnace slag, clay, marl and industry-by-products like flue-ash with the requirement that the Al.sub.2O.sub.3-content of the binder is greater than 5% (w/w) and that furnace slag is present in an amount less than 35% (w/w) of the binder and that cement kiln dust in amounts from 1 to 20% (w/w) of the binder is applied as activator whereby the hydraulic activator is applied in amounts >400 kg per m.sup.3 concrete safeguarding a water/binder ratio from 0.25 to 0.40.
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