Lightweight air-entrained concrete block and its preparation method

A technology of aerated concrete and blocks, which is applied in the field of building materials, can solve the problems of large drying shrinkage, single source of materials, poor heat insulation, etc., and achieve high compressive strength, increase hydrophobicity, and improve water seepage capacity.

Inactive Publication Date: 2016-03-02
江西展业建材科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a new type of wall material, air-entrained concrete is a low-energy, environmentally-friendly new building material, which belongs to the building materials promoted by the state. However, because ordinary air-entrained concrete is made of cement, fly ash, quicklime, gypsum, etc. Large shrinkage value, low strength, water seepage, non-corrosion resistance, poor heat insulation, single source of material, etc. Therefore, further research on aerated concrete block technology is urgently needed to further meet market requirements

Method used

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Embodiment Construction

[0013] A light-weight aerated concrete block, characterized in that it is made of the following raw materials in parts by weight (kg): cement 20, quicklime 15, gypsum 12, fly ash 10, aluminum powder 0.3, polypropylene fiber 10, mineral Oil 8, clay 8, plant ash 35, ammonium persulfate 3, oil foot 10, sodium metasilicate 15, polyvinyl alcohol 3.

[0014] The preparation method of the lightweight aerated concrete block is characterized in that it comprises the following steps:

[0015] (1) Add appropriate amount of water to clay and plant ash, heat to 90-100°C, stir for 5-10 minutes, add oil foot, sodium metasilicate, stir for 25-35 minutes, then add ammonium persulfate, stir for 30-45 minutes Minutes later, add polyvinyl alcohol and gypsum and stir for 20-30 minutes until it becomes mud;

[0016] (2) Add cement to 50-60°C hot water and mix for 5-15 minutes, then add the mud obtained in step (1), quicklime, aluminum powder, fly ash, mineral oil and other materials, and stir for ...

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PUM

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Abstract

Provided is a lightweight aerated concrete block. The aerated concrete block is characterized by comprising, by weight, 20-25 parts of cement, 15-20 parts of quicklime, 10-12 parts of gypsum, 10-15 parts of fly ash, 0.2-0.3 parts of aluminium powder, 8-10 parts of polypropylene fiber, 8-10 parts of mineral oil, 5-8 parts of clay, 30-35 parts of plant ash, 3-5 parts of ammonium persulfate, 10-12 parts of oil foot, 12-15 parts of sodium metasilicate and 3-5 parts of polyvinyl alcohol. The aerated concrete block takes plant ash as a main raw material, the plant ash is lightweight, so that the weight of block is reduced greatly, and the building load is reduced.

Description

technical field [0001] The invention belongs to a building material technology, in particular to a concrete block and a preparation method thereof. Background technique [0002] As a new type of wall material, air-entrained concrete is a low-energy, environmentally-friendly new building material, which belongs to the building materials promoted by the state. However, because ordinary air-entrained concrete is made of cement, fly ash, quicklime, gypsum, etc. Large shrinkage value, low strength, water seepage, no corrosion resistance, poor heat insulation, single source of material, etc. Therefore, further research on aerated concrete block technology is urgently needed to further meet market requirements. Contents of the invention [0003] The object of the present invention is to provide light-weight air-entrained concrete blocks and a preparation method thereof, so as to make the weight of the air-entrained concrete blocks lighter and reduce construction loads. [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B38/02C04B24/08C04B18/10
CPCY02W30/91
Inventor 吴福贵
Owner 江西展业建材科技有限公司
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