Cement composition and methods for producing same

C - Chemistry – Metallurgy – 04 – B

Patent

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Details

C04B 22/08 (2006.01) C04B 7/02 (2006.01) C04B 22/14 (2006.01) C04B 28/02 (2006.01) G01N 33/38 (2006.01)

Patent

CA 2080379

2080379 9115435 PCTABS00007 A cement composition comprising 1) a cement containing water-soluble chromate and 2) at least one manganese(II) compound in an amount sufficient to reduce the amount of water-soluble chromate to at the most 2 mg of Cr(VI) per kg of the cement, the determination of the chromate content being carried out by elution of the composition in water for 15 minutes at a water/cement ratio of 1, filtration, and determination of the chromate content in the filtrate.

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