Fly-ash-base filling material
A technology of filling materials and fly ash, which is applied in the fields of fly ash-based filling materials and inorganic Portland cement materials, can solve the problems of restricting the popularization and application of filling materials with high water content, strength less than 4.5MPa, high quality and calcination requirements, etc. problem, to achieve good filling effect, safety cost, and shorten the effect of setting time
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Embodiment 1
[0029] A fly ash-based filling material is composed of the following components by weight:
[0030] 33 parts of desulfurized gypsum, 50 parts of fly ash, 8 parts of ordinary Portland cement, 1 part of curing agent, 0.5 part of expansion agent, 0.5 part of coagulant;
[0031] Among them, the curing agent is lime, the coagulant is sodium sulfate, and the expansion agent is an air-entraining agent.
[0032] The above-mentioned filling material is mixed with water in a volume ratio of 1:1, and the initial setting time is 4.8min.
Embodiment 2
[0034] A fly ash-based filling material is composed of the following components by weight:
[0035] 30 parts of desulfurized gypsum, 40 parts of fly ash, 5 parts of ordinary Portland cement, 1 part of curing agent, 0.5 part of expansion agent, 0.5 part of coagulant;
[0036] Among them, the curing agent is lime, the coagulant is potassium sulfate, and the expansion agent is an air-entraining agent.
[0037] The above-mentioned filling material is mixed with water in a volume ratio of 1:1, and the initial setting time is 3 minutes.
Embodiment 3
[0039] A fly ash-based filling material is composed of the following components by weight:
[0040] 40 parts of desulfurized gypsum, 45 parts of fly ash, 9 parts of ordinary Portland cement, 1 part of curing agent, 0.5 part of expansion agent, 0.5 part of coagulant;
[0041] Among them, the curing agent is lime, the coagulant is potassium sulfate, and the expansion agent is an air-entraining agent.
[0042] The above-mentioned filling material is mixed with water in a volume ratio of 1:1, and the initial setting time is 4 minutes.
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