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A cement material and fiber-reinforced technology, which is applied in the field of fiber-reinforced cement materials, can solve the problems of occupying the actual use space, poor thermal insulation and sound insulation performance, and high labor intensity, and achieve the goal of reducing weight, thickness, and labor intensity Effect
Inactive Publication Date: 2017-09-01
上海绿明建筑科技集团有限公司
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Problems solved by technology
[0004] The invention provides a fiber-reinforced cement material aiming at the technical deficiencies of the existing concrete wall, such as heavy weight, high labor intensity during forming and maintenance, high transport distance, poor thermal insulation and sound insulation performance, excessive thickness, and occupation of actual use space.
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Embodiment 1
[0009] A fiber-reinforced cement material, including the following raw materials and weight fractions: 7%-9% of water, 24%-30% of Portland cement, 8%-12% of slag powder, 40%-50% of quartz sand, steel fiber 1%-2%, silica fume 1.5%-3.5%, polystyrene insulation particles 1.5%-2.0%, expansion agent 1%-3%, mixed with 0.3%-0.6% admixture, the admixture is to reduce Water agent, defoamer, its weight percent is: water reducer 0.15%-0.30%, defoamer 0.05%-0.10%, said admixture is respectively: water reducer is polycarboxylic acid, defoamer is poly ether.
[0010] This product has good compressive strength, low density and excellent sound insulation performance. See Table 1 below for details:
[0011] Table 1 Technical index of the present invention
[0012]
[0013]
Embodiment 2
[0015] A fiber-reinforced cement material, including the following raw materials and weight fractions: 7.89% of water, 25.96% of Portland cement, 11.12% of slag powder, 45.82% of quartz sand, 1.58% of steel fiber, 3.16% of silica fume, polystyrene insulation Granules 1.78%, expansion agent 2.37%, water reducer 0.26% and defoamer 0.08%.
[0016] This product has good compressive strength, low density and excellent sound insulation performance. See Table 2 below for details:
[0017] Table 2 Measured technical indicators
[0018]
[0019] The invention provides a fiber-reinforced cement material, whose compressive strength is the same as that of ordinary concrete, and whose density is only 40% of that of concrete, which can effectively reduce the weight of the exterior wall of a prefabricated building and reduce the labor intensity during molding and maintenance. Save on shipping costs. At the same time, its thermal insulation and sound insulation performance is superior. ...
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Abstract
The invention discloses a fiber reinforced cement material which is prepared from the following raw materials in weight percentage: 7% to 9% of water, 24% to 30% of Portland cement, 8% to 12% of superfine slag powder, 40% to 50% of quartz sand, 1% to 2% of steel fiber, 1.5% to 3.5% of silica fume, 1.5% to 2.0% of polystyrene thermal insulation particle, 1% to 3% of expanding agent and doping 0.3% to 0.6% of additives, wherein the additives include a water reducing agent and a defoaming agent, a weight percentage of the water reducing agent is 0.15% to 0.30%, a weight percentage of the defoaming agent is 0.05% to 0.10%, and the additives are respectively the water reducing agent of poly carboxylic acid and the defoaming agent of polyether. The fiber reinforced cement-based polyphenyl particle thermal insulation compound material disclosed by the invention is used for manufacturing partition walls in preassembled buildings, and the problems that an existing concrete wall body has large weight, large labor intensity in formation and maintenance, high transportation cost, poor thermal insulation and sound insulation, large thickness, actual used space occupancy and the like are effectively solved.
Description
technical field [0001] The invention belongs to the technical field of cement production, and in particular relates to a fiber-reinforced cement material. Background technique [0002] In the past few decades, my country's construction industry has flourished, which has greatly promoted the development of the national economy. With the increase of land transfer fees in our country, rising labor prices, people's requirements for energy conservation and environmental protection are gradually increasing, and the pressure on the construction industry is increasing. In order to improve competitiveness, a new industrial model - prefabricated buildings came into being. With the development of prefabricated buildings, higher and higher requirements are put forward for prefabricated components, especially prefabricated wall materials. The traditional concrete wall has the disadvantages of heavy weight, poor thermal insulation performance, high construction cost, high labor intensit...
Claims
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