Refractory system including reactive metakaolin additive

Details Refractory system including reactive metakaolin additive Refractory system including reactive metakaolin additive

C - Chemistry, Metallurgy

04

B

C04B 7/32 (2006.01) C04B 14/10 (2006.01) C04B 35/66 (2006.01) C04B 40/00 (2006.01)

Patent

CA 2294763

An additive for reducing the calcium aluminate cement content in a refractory mix containing calcium aluminate cement. The additive is comprised of about 80 % by weight amorphous, powdered metakaolin, the metakaolin having a mean particle size of less than about 3.0 microns, and about 20 % by weight microsilica, the microsilica having a mean particle size of less than 45 microns.

Cette invention se rapporte à un additif servant à réduire la teneur en ciment à base d'aluminate de calcium dans un mélange réfractaire contenant du ciment à base d'aluminate de calcium. Cet additif comprend environ 80 % en poids de métakaolin pulvérulent amorphe, lequel possède une taille moyenne des particules inférieure à 3,0 microns environ, et environ 20 % en poids de microsilice, laquelle possède une taille moyenne des particules inférieure à 45 microns.

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