Production technology for physical foaming cement insulation boards
A cement insulation board and production process technology, which is applied in the field of building insulation materials, can solve the problems of durability, uneven quality, and high price, and achieve the goal of improving early and late strength, improving toughness and strength, and reducing production costs. Effect
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Embodiment 1
[0023] A kind of physical foaming cement insulation board production process, the steps are:
[0024] (1) Measure and pre-mix 145kg of general-purpose Portland cement, 0kg of composite aluminosilicate mineral admixture, and 0kg of composite admixture to obtain solid materials, and add water to wet mill according to the mass ratio of water to solid materials of 0.6:1 20 minutes to get a non-bleeding, non-layered slurry;
[0025] (2) Add neutral alkali-resistant polypropylene fibers into the slurry and stir at high speed until the fibers are evenly dispersed, then add a foaming agent placed in a foaming machine to prepare a foam with a diameter of less than 0.3 mm to form a foam body, 1m 3 The foam body contains 0.5kg vegetable protein foaming agent and 1.35kg neutral alkali-resistant polypropylene fiber;
[0026] (3) The foam body obtained in step (2) is molded into a mold, maintained at 100°C for 8 hours at a constant moisturizing temperature, demoulded, and cut to obtain a b...
Embodiment 2
[0030] A kind of physical foaming cement insulation board production process, the steps are:
[0031] (1) 97kg of general Portland cement, 42kg of composite aluminosilicate mineral admixture (including 21kg of metakaolin, 21kg of fly ash), 1.4kg of composite admixture (of which 0.7kg of gypsum, 0.7kg of calcium hydroxide) , that is, the percentage of ordinary Portland cement is 69%, and the percentage of composite aluminosilicate mineral admixture is 30% ((wherein the mass percentage of metakaolin in the composite aluminosilicate mineral admixture is 50%), the percentage content of the composite admixture is 1% (the mass percentage of gypsum in the composite admixture is 50%), and the solid material is measured and pre-stirred, and water is added according to the mass ratio of water to solid material 0.8:1 Wet grinding for 30 minutes to obtain a non-bleeding and non-layered slurry;
[0032] (2) Add neutral alkali-resistant polypropylene fibers into the slurry and stir at high...
Embodiment 3
[0037] A kind of physical foaming cement insulation board production process, the steps are:
[0038] (1) 63kg of general Portland cement, 66kg of composite aluminosilicate mineral admixture (including 39.6kg of metakaolin, 26.4kg of fly ash), 3.3kg of composite admixture (of which 1.98kg of gypsum, 1.32 kg of calcium hydroxide kg), that is, the percentage content of ordinary Portland cement is 47.5%, and the percentage content of composite aluminosilicate mineral admixture is 50% (the mass percentage of metakaolin in the composite aluminosilicate mineral admixture is 60%) %), the percentage content of the composite admixture is 2.5% (the mass percentage of gypsum in the composite admixture is 60%), measure and pre-stir the solid material, add water and wet mill for 40 minutes according to the mass ratio of water to solid material 0.8:1 Obtain a non-bleeding, non-layered slurry;
[0039] (2) Add neutral alkali-resistant polypropylene fibers into the slurry and stir at high sp...
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