A kind of cement board and its semi-dry method preparation technology
A technology of cement board and semi-dry method, which is applied in the field of cement board, which can solve the problems of poor water resistance and frost resistance, difficulty in mixing cement and water uniformly, and deterioration of cement product performance, so as to achieve good frost resistance and high moisture content. Low, reduce the effect of water absorption
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Embodiment 1
[0044] A semi-dry preparation process of cement board, the raw materials are as follows:
[0045] In this embodiment, the powdery material A is composed of the following raw materials by weight: 50 parts of Portland cement, 25 parts of waste FRP, 15 parts of papermaking sludge ash, 5 parts of ultrafine slag, and 1.1 parts of polyvinylpyrrolidone.
[0046] Wherein, the fineness of the waste FRP (the remainder after passing through a 200-mesh sieve) is 2%; the fineness of the papermaking sludge ash (the remainder after passing through a 325-mesh sieve) is 5%; the specific surface area of the ultrafine slag is 950m 2 / kg; the molecular weight of the polyvinylpyrrolidone is 2.0×10 4 .
[0047] The solution B is composed of the following raw materials by weight: 98.85 parts of water, 1.5 parts of KH570 type silane coupling agent, graphene oxide supported cuprous oxide (GO-Cu 2 O) 0.1 part, wherein; the GO-Cu 2 The loading of cuprous oxide in O is 4% (molar fraction), that is,...
Embodiment 2
[0055] A semi-dry preparation process of cement board, the raw materials are as follows:
[0056] In this embodiment, the powdery material A is composed of the following raw materials by weight: 60 parts of Portland cement, 20 parts of waste FRP, 8 parts of papermaking sludge ash, 8 parts of ultrafine slag, and 0.5 parts of polyvinylpyrrolidone.
[0057] Wherein, the fineness of the waste glass fiber reinforced plastic (the remainder after passing through a 200-mesh sieve) is 1%; the fineness of the paper sludge ash (the remainder after passing through a 325-mesh sieve) is 6%; the specific surface area of the ultrafine slag is 800m 2 / kg; the molecular weight of the polyvinylpyrrolidone is 3.0×10 4 .
[0058] The solution B is composed of the following raw materials by weight: 98.5 parts of water, 2 parts of KH570 type silane coupling agent, graphene oxide supported cuprous oxide (GO-Cu 2 O) 0.15 parts, wherein; the GO-Cu 2 The loading of cuprous oxide in O is 3% (molar ...
Embodiment 3
[0066] A semi-dry preparation process of cement board, the raw materials are as follows:
[0067] In this embodiment, the powdery material A is composed of the following raw materials by weight: 45 parts of Portland cement, 35 parts of waste glass fiber reinforced plastics, 5 parts of papermaking sludge ash, 4 parts of ultrafine slag, and 0.9 parts of polyvinylpyrrolidone.
[0068] Wherein, the fineness of the waste FRP (over 200 mesh sieve) is 5%; the papermaking sludge ash fineness (over 325 mesh sieve) is 3%; the specific surface area of the ultrafine slag is 900m 2 / kg; the molecular weight of the polyvinylpyrrolidone is 1.5×10 4 .
[0069] The solution B is composed of the following raw materials in parts by weight: 97.95 parts of water, 1 part of KH570 type silane coupling agent, graphene oxide supported cuprous oxide (GO-Cu 2 O) 0.05 part, wherein; the GO-Cu 2 The loading of cuprous oxide in O is 5% (molar fraction), that is, 5 mol of cuprous oxide is loaded per 1...
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Abstract
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