Ultra-rapid hardening hydraulic binder using reduced slag powder, and method of preparing the same
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United States of America Patent
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Sep 16, 2014
Grant Date -
Oct 17, 2013
app pub date -
May 9, 2013
filing date -
Nov 10, 2010
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Abstract
Provided are an ultra-rapid hardening hydraulic binder including reduced slag powder and a method of preparing the same. The reduced slag powder is prepared by rapidly cooling molten electric arc furnace reduced slag, among by-products generated during an iron refinement process in a steel mill, to room temperature not to have free-calcium oxide by scattering the molten electric arc furnace reduced slag into the air using high-pressure gas by dropping the molten electric arc furnace reduced slag through a tundish.
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