A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a heat-repair material for a coke oven head. The heat-repair material comprises, by weight, 10-25% of silica brick, 15-25% of high-alumina bauxite, 10-15% of a binding agent, 15-20% of a cosolvent, 5-10% of a water reducer and 15-55% of alumina silicate. The silica brick comprises, by weight, 75-80% of tridymite and 15-20% of cristobalite. The binding agent is industrial aluminum dihydrogen phosphate. The cosolvent comprises at least three of potassium oxide, silica, alumina and sodium oxide. The water reducer comprises at least one of an M water reducer, a FDN water reducer and an MF water reducer. The heat-repair material has good shock resistance and good wear resistance. The silica brick powder in the raw materials has a high tridymite degree, improves material high temperature volume stability, improves material binding performances, can be bonded with a silica brick base, prevents cracking and shrinkage in a thermal state, effectively prolongs a coke oven head service life, and guarantees uniformity, adhesion and brick internal structure strength by use of the water reducer.
The invention discloses a heat-repair material for a coke oven head. The heat-repair material comprises, by weight, 10-25% of silica brick, 15-25% of high-alumina bauxite, 10-15% of a binding agent, 15-20% of a cosolvent, 5-10% of a water reducer and 15-55% of alumina silicate. The silica brick comprises, by weight, 75-80% of tridymite and 15-20% of cristobalite. The binding agent is industrial aluminum dihydrogen phosphate. The cosolvent comprises at least three of potassium oxide, silica, alumina and sodium oxide. The water reducer comprises at least one of an M water reducer, a FDN water reducer and an MF water reducer. The heat-repair material has good shock resistance and good wear resistance. The silica brick powder in the raw materials has a high tridymite degree, improves material high temperature volume stability, improves material binding performances, can be bonded with a silica brick base, prevents cracking and shrinkage in a thermal state, effectively prolongs a coke oven head service life, and guarantees uniformity, adhesion and brick internal structure strength by use of the water reducer.
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