| 摘要 |
A high strength mortar has been developed for use with silica brick, in the construction of coke-oven heating walls. When fired to conventional coke oven temperatures of about 1100 DEG 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 Al2O3 and 4 to 12 percent P2O5. To achieve such high tensile strength, the other solid constituents must be maintained at a minimum, desirably less than four percent and preferably less than two percent. |
