Cement composition and a process for preparation thereof

Details Cement composition and a process for preparation thereof Cement composition and a process for preparation thereof

C - Chemistry, Metallurgy

04

B

261/56.2

C04B 24/24 (2006.01) C04B 24/12 (2006.01) C04B 24/32 (2006.01)

Patent

CA 1278583

A B S T R A C T The disclosure describes a hydraulic cement composition comprising a carbonation inhibitor for the cement composition. This inhibitor is a compound of the general formula (I): A?XmYn-H)? (I) wherein A is a polyamine residue containing 2-10 carbon atoms, X is -CH2CH2O-, Y is -C3H6O-, ? is a number equal to 1-8, m is a number equal to 0-3, n is a number equal to 0-4, the product m x ? is equal to 0-16, the product n x ? is equal to 0-20, (m x ? + n x ? ) is equal to 1-20 and X and Y are arranged in an optional order, each -XmYn-H moiety thus being a residue of an ethylene oxide or propylene oxide-derived addend or an ethylene oxide or propylene oxide homopolymer or ethylene oxide-propylene oxide block or random copolymer addend. The process of preparing the composition is also disclosed.

530495

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