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A technology of thermal insulation mortar and ceramsite sand, which is applied in the field of building materials, can solve problems such as impact, shortened service life of buildings, serious masonry strength, etc., and achieve the effects of huge market prospects, good construction performance, and excellent workability
Active Publication Date: 2014-09-24
安徽阜阳富龙建筑材料有限责任公司
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When ordinary masonry mortar is used to build lightweight block walls, due to the large difference in thermal conductivity between the two, there is a "cold bridge" phenomenon in the entire masonry, and the energy loss caused by the masonry mortar joints is very large, even Dew condensation on the wall will occur, which will shorten the service life of the building and reduce the use function.
will be affected, and the mortar
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[0015] The preparation method of described composite filler is as follows:
[0017] (b) Mix shale, coal gangue, kaolin and boron mud evenly, crush them through a 100-mesh sieve, then add pulp waste liquid, citric acid and sodium tripolyphosphate, wet ball mill for 20 minutes, and granulate to control the particle size to 0.3 mm, dried at 115°C, then calcined at 1220°C for 1.5h, cooled to room temperature for use;
[0018] (c) Mix sepiolite and vermiculite evenly and calcinate at 690°C for 3 hours, cool to room temperature, place in 15% hydrochloric acid solution, heat to 75°C in a water bath, keep war...
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Abstract
The invention discloses a thermal-insulation mortar for masonry, which is prepared from the following raw materials in parts by weight: 40-50 parts of ferrous aluminate cement, 25-35 parts of haydite sand, 10-15 parts of coal slag powder, 5-10 parts of magnesia, 8-12 parts of pyrauxite powder, 10-15 parts of floating bead, 0.5-1.5 parts of sodium fluosilicate, 2-3 parts of redispersible latex powder, 3-5 parts of nano titanium dioxide, 1.5-2.5 parts of cellulose acetate, 2-4 parts of wood dust, 4-8 parts of magnesium hydroxide, 1-2 parts of sodium carboxymethyl starch and 3-6 parts of composite filler. The thermal-insulation mortar for masonry has similar drying shrinkage deformation and heat-conducting property to the light-weight building block, can effectively avoid the occurrence of the cold bridge phenomenon, has the advantages of excellent workability, excellent binding strength, excellent flowability, excellent water retention property, excellent compression strength, excellent crack resistance, no shedding, no cracking, no molding, high stability, favorable workability and the like, is convenient to use, and has huge market prospects.
Description
technical field [0001] The invention relates to a thermal insulation mortar for masonry, which belongs to the field of building materials. Background technique [0002] The apparent density of existing ordinary masonry mortar is generally 1600-1800 kg / m 3 , the thermal conductivity is 0.8-1.0 W / (m K); while the apparent density of lightweight insulation blocks is generally 450-950 kg / m 3 , The thermal conductivity is 0. 15-0. 35 W / (m·K). When ordinary masonry mortar is used to build lightweight block walls, due to the large difference in thermal conductivity between the two, there is a "cold bridge" phenomenon in the entire masonry, and the energy loss caused by the masonry mortar joints is very large, even There will be condensation on the wall, which will shorten the service life of the building and reduce the use function. At the same time, the bond strength between the ordinary thermal insulation mortar and the lightweight block is not ideal, which will seriously af...
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