Hydraulic binder

Details Hydraulic binder Hydraulic binder

C - Chemistry, Metallurgy

04

B

C04B 7/21 (2006.01)

Patent

CA 2324486

A hydraulic binder containing a glassy bulky slag milled to a fineness above 5000 cm2/g Blaine and wherein the latently hydraulic blast furnace slag has a glassiness above 93%, contains 34 to 40% Si02, 34 to 37% CaO and above 9% and previously below 13% Al2O3. The (CaO+MgO) /(Al2O3+SiO2) ratio ranges from 0.88 to 0.98. Preferably the binder contains 0.5 to 5% porcelain cement clinker or porcelain cement. The above conditions can be met by mixing several slags.

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