Heat insulating material for flume and its preparation method
A thermal insulation material, aqueduct technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., to achieve the effect of easy dispersion and adsorption, reducing water absorption
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Embodiment 1
[0029] A thermal insulation material for an aqueduct, which is formed by stirring and mixing dry mixture and water (stirring and mixing during construction), and the mass ratio of water to dry mixture is 1.2:1;
[0030] The components and ratio (mass percentage) of the dry mix are: Ordinary Portland cement (P.O 42.5, Huaxin Cement Co., Ltd.): 35%, and the bulk density is 80kg / m 3 Vitrified hollow microbeads (0.15-1.5mm in diameter, Wuhan Laikelian Technology Co., Ltd.): 54.9%, sepiolite fibers (5-10mm in length, Yixian Dazhi Thermal Insulation Building Materials Co., Ltd.): 2%, silicon Ash (the specific surface area is between 15000 and 20000m 2 / kg, commercially available): 3%, cement-based permeable crystalline material (SKB-202, Shanghai Seeker Waterproof Material Co., Ltd.) 1%, waste rubber powder (80 mesh, Huangshi Rubber Co., Ltd.): 3%, vinyl acetate Copolymer latex powder with ethylene (MP2050, Yilaitai Co., Ltd., Switzerland): 1%, with a viscosity of 100000 mPa·s Hydr...
Embodiment 2
[0037] An insulating material for an aqueduct, which is formed by stirring and mixing dry mixture and water (stirring and mixing during construction), and the mass ratio of water to dry mixture is 1.1:1;
[0038] The components and ratio (mass percentage) of the dry mix are: the strength grade is P.O 42.5 ordinary Portland cement: 40%, and the bulk density is 100kg / m 3 Vitrified hollow microspheres (0.15-1.5 mm in diameter): 44%, sepiolite fiber (5-10 mm in length): 4%, silica fume (specific surface area between 15000-20000m 2 / kg): 4%, cement-based osmotic crystalline material (commercially available, SKB-202, which is a commodity model produced by Shanghai Sink Waterproof Material Co., Ltd., and there are other similar products on the market): 2%, waste rubber powder (80 Mesh): 4%, vinyl acetate and ethylene copolymer latex powder (commercially available, MP2050): 1.75%, hydroxypropyl methylcellulose ether with a viscosity of 100000mPa·s: 0.25%.
[0039] The preparation met...
Embodiment 3
[0045] A thermal insulation material for an aqueduct, which is formed by stirring and mixing dry mixture and water, and the mass ratio of water to dry mixture is 1.1:1 (stirring and mixing during construction);
[0046] The dry mix is composed of cement, vitrified hollow microspheres, sepiolite fiber, silica fume, cement-based osmotic crystalline material, waste rubber powder, redispersible latex powder and hydroxypropyl methylcellulose ether raw materials; each raw material accounts for The mass percentage of the dry mix is: cement 54.9%, vitrified hollow microspheres 35%, sepiolite fiber 2%, silica fume 3%, cement-based permeable crystalline material 1%, waste rubber powder 3%, redispersible latex Powder 1%, hydroxypropyl methylcellulose ether 0.1%.
[0047] Described cement is the ordinary Portland cement of No. P.O 42.5.
[0048] The particle diameter of the vitrified hollow microspheres is 0.15-1.5 mm, and the bulk density is 80-100 kg / m 3 , thermal conductivity ≤0.04...
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