Method of accelerated hardening and strength increasing of...

Details Method of accelerated hardening and strength increasing of... Method of accelerated hardening and strength increasing of...

C - Chemistry, Metallurgy

04

B

261/58, 261/85

C04B 22/12 (2006.01)

Patent

CA 1090838

ABSTRACT OF THE DISCLOSURE: A method of accelerated hardening and strength increase of cements, including cement-pastes, cement-sand mortars and concretes, wherein the cements are mixed with water and an admixture containing an alkali nitrite, at a temperature up to 60°C, and the mixture is left to harden at a temperature up to 100°C, characterized in that the admixture comprises 0.5 to 5 weight parts of bialuminium pentahydroxichloride, 1 to 12 weight parts of gypsum, 0.5 to 20 weight parts of lime and up to 3 weight parts of an alkali nitrite and is mixed with 100 weight parts of cement and with water.

290939

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