A kind of low density foam cement and preparation method thereof
A technology of foamed cement and low density, which is applied in the field of light-weight and energy-saving building materials and its preparation. It can solve the problems of poor thermal insulation performance, high density, and affecting the energy-saving effect of buildings, and achieves short setting time, improved stability, and reduced cracks. Effect
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Embodiment 1
[0031] 120 parts of cement, 1.0 part of coagulation accelerator, 1.0 part of foam stabilizer, 1.2 parts of water reducer, 11 parts of foaming agent, 0.5 part of fiber, and 50 parts of water.
[0032] The dry bulk density of the resulting low-density foamed cement is 141kg / m 3 , 28-day strength 0.2Mpa, thermal conductivity 0.049w / (m·K).
Embodiment 2
[0034] 60 parts of cement, 0.3 parts of coagulation accelerator, 0.4 parts of foam stabilizer, 0.5 parts of water reducing agent, 9 parts of foaming agent, 0.2 parts of fiber, and 25 parts of water.
[0035] The dry bulk density of the resulting low-density foamed cement is 72kg / m 3 , 28-day strength 0.1Mpa, thermal conductivity 0.034w / (m·K)
Embodiment 3
[0037] 90 parts of cement, 0.7 parts of coagulation accelerator, 0.8 parts of foam stabilizer, 0.8 parts of water reducer, 12 parts of foaming agent, 0.3 parts of fiber, and 35 parts of water.
[0038] The dry bulk density of the resulting low-density foamed cement is 110kg / m 3 , 28-day strength 0.1Mpa, thermal conductivity 0.041w / (m·K).
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