Pozzolan cement compositions

Details Pozzolan cement compositions Pozzolan cement compositions

C - Chemistry, Metallurgy

04

B

261/58

C04B 7/12 (2006.01) C04B 28/02 (2006.01) C04B 28/22 (2006.01)

Patent

CA 1103705

POZZOLAN CEMENT COMPOSITIONS ABSTRACT A cement composition comprising cement, a pozzolan material, fine aggregate, air, water, and at least one alkali metal constituent selected from the group consisting of sodium and potassium ions; wherein the solid valume ratio of cement to the pozzolan material is within the range of approximately 0.1 to 2.0; the ratio of the volume of paste (fly ash, cement, air, and water) to the solid volume of sand is within the range of approxi- mately 0.75 to 1.5; the ratio of the solid volume of cement to the volume of mortar is less than about 0.19; and the alkali metal constituent is present in an amount up to approximately 4.0 percent by weight, in terms of the equivalent weight of sodium ions, of the pozzolan material. The cement composition of the present invention is substantially less expensive than cement compositions presently employed in the industry having equivalent compressive strengths.

285519

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