C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/58
C04B 7/26 (2006.01) C04B 24/06 (2006.01) C04B 28/02 (2006.01)
Patent
CA 1128076
ABSTRACT A cement composition comprising cement, a pozzolan material, fine aggregate, air, water, at least one alkali metal constituent selected from the group consisting of so- dium, potassium, and lithium ions, and at least one anoinic constituent which is capable of forming complexes with ferric ions, is soluble in water, and forms a calcium salt which is also water soluble, wherein the alkali metal con- stituent is present in an amount up to approximately 4.0 percent by weight, in terms of the equivalent weight of so- dium ions, of the pozzolan material; the anoinic constituent 13 present in an amount up to approximately 6.0 percent by weight, in terms of the equivalent weight of chloride ions, of the pozzolan material; and the cement composition is fur- ther characterized by: (a) having a solid volume ratio of cement to the pozzolan material within the range of approxi- mately 0.05 to 2.0; (b) having a ratio of the volume of paste (fly ash, cement, air, and water) to the solid volume of sand within the range of approximately 0.75 to 2.5; and (c) having a ratio of the solid volume of cement to the volume of mortar less than about 0.19. The cement composi- tion of the present invention is substantially less expen- sive than cement compositions presently employed in the in- dustry having equivalent compressive strengths.
326268
Partners Limited A. Partnership (the)
Ridout & Maybee Llp
Turpin Raymond C. Jr.
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