Cement compositions

Details Cement compositions Cement compositions

C - Chemistry, Metallurgy

04

B

261/66

C04B 7/32 (2006.01) C04B 28/06 (2006.01) E21F 15/00 (2006.01)

Patent

CA 1197272

A B S T R A C T CEMENT COMPOSITIONS A cement composition which when mixed with water hydrates to form a hardened cement containing ettringite comprises a high alumina cement, beta- anhydrite and calcium oxide and/or calcium hydroxide. The composition may also contain a calcium sulphate which is partially water soluble, an alkali metal sulphate, an accelerator for the high alumina cement such as lithium carbonate, and/or a bentonite clay. The composition is particularly suitable for filling cavities in mines.

429577

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