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AssigneeW. R. Grace & Co.-Conn.
InventorsEllis M. Gartner, Joseph A. Cogliano, Ahmad Arfaei, Leslie A. Jardine, Paul Scheiner, Heyman C. Duecker
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Hydraulic cement set-accelerating admixture compositions; cement compositions containing such admixtures; and methods for preparing said cement compositions. The admixture compositions comprise one or more nitroalcohols present in an amount effective to increase the set acceleration of a hydraulic cement composition. The invention further relates to a method of making a hydraulic cement composition comprising adding to a cement composition comprising a hydraulic cement binder, a nitroalcohol component in an amount effective to increase the set-acceleration of the binder, and to a cement composition comprising a hydraulic cement binder and a nitroalcohol set-accelerating agent.
A cement composition comprising a hydraulic cement binder and a set accelerating amount of a nitroalcohol.
A cement composition comprising a hydraulic cement binder;
A method of accelerating the set of a cement composition comprising adding to a hydraulic binder a set accelerator selected from the group consisting of aluminum nitrate, calcium nitrate, calcium nitrite, calcium chloride, sodium thiocyanate, sodium chloride, calcium thiocyanate, calcium bromide, calcium formate and mixtures thereof;
Dependencies are inferred from the claim text.