High strength coke-oven mortar

Details High strength coke-oven mortar High strength coke-oven mortar

C - Chemistry, Metallurgy

04

B

261/66

C04B 35/14 (2006.01) C04B 28/34 (2006.01) C04B 35/10 (2006.01) C04B 35/66 (2006.01) C04B 40/00 (2006.01) C10B 29/02 (2006.01)

Patent

CA 1233840

-8- ABSTRACT A high strength mortar has been developed for use with silica brick, in the constructon of coke-oven heating walls. When fired to conventional coke oven temperatures of about 1100°C, the mortar develops a tensile strength within the mortar itself, and a tensile bond to the silica brick, which exceeds the tensile strength of the silica brick. The mortar is composed of three primary solid constituents: 25 to 88 percent SiO2, 6 to 65 percent A12O3 and 4 to 12 percent P2O5. To achieve such high tensile strength, the other solid constituents must be maintained at a minimum, desireably less than four percent and preferably less than two percent.

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