Non-plastic hydraulic cement mixes and process for improving...

Details Non-plastic hydraulic cement mixes and process for improving... Non-plastic hydraulic cement mixes and process for improving...

C - Chemistry, Metallurgy

04

B

261/57

C04B 28/02 (2006.01) C04B 24/12 (2006.01)

Patent

CA 1123863

Abstract of the Invention A method is provided for improving the strength and other properties of non-plastic dry hydraulic cement mixes, such as the dry concrete mixes used for making concrete masonry units. The method comprises incorporating a synergistic combination of two additives into the cement mix. The first additive is a salified methyl or ethyl substituted benzene or naphthalene sulfonate, and is preferably added in an amount of between about 0.01 and 1%, by weight based upon the weight of the cement. The second additive is a tertiary aliphatic amine oxide, and is preferably added in an amount of between 0.001 and 0.1%. -18-

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