Hydraulic cements

Details Hydraulic cements Hydraulic cements

C - Chemistry, Metallurgy

04

B

261/58

C04B 7/02 (2006.01) C04B 7/42 (2006.01)

Patent

CA 1062735

A B S T R A C T A method of making a special high strength cement of the Portland type containing alite of improved hydraulic activity, wherein argillaceous and calcareous materials are combined to form clinker by heating in a kiln and the resulting clinker is ground to form a cement, comprising the step of introducing into the kiln a combination of mineralisers which contains fluorine and sulphur, provided that an alkali metal compound which can be a component of the aforesaid combination of mineralisers is included in the combination of mineralisers at least when the condition that the lima saturation factor be at least 0.98 and the silica ratio be at least 4 is not met.

249516

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