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Autoclaved aerated concrete block and preparation process thereof

A concrete block and autoclaved aerated technology, which is applied in the direction of ceramic products, other household utensils, applications, etc., can solve the problem of unstable production process of autoclaved aerated concrete blocks, small application range of products, unstable production process, etc. To achieve the effect of promoting the recycling of solid waste resources, solving the instability of production process, and the uniform size and distribution of pores

Inactive Publication Date: 2020-06-12
ZHEJIANG FUCHUNJIANG ENVIRONMENTAL THERMOELECTRIC CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low compressive strength of autoclaved aerated concrete blocks prepared by low-quality fly ash in the prior art, narrow product application range and unstable production process, and provide an autoclaved aerated concrete block The block and its preparation process can improve the strength of the autoclaved aerated concrete block, thereby greatly expanding the application range of fly ash, the waste generated by the boiler combustion of domestic thermal power plants, and realizing the effective utilization of resources; at the same time, solving the problem of autoclaved aerated concrete block The problem of unstable production process

Method used

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  • Autoclaved aerated concrete block and preparation process thereof

Examples

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Embodiment 1

[0025] In Example 1, an autoclaved aerated concrete block, its formula is in parts by weight, including the following components: 120 parts of fly ash, 280 parts of river sand, 10 parts of desulfurized gypsum, 75 parts of lime, cement 80 parts, 0.6 parts of aluminum powder paste; wherein the content of silicon dioxide in fly ash is 32.57%, the content of aluminum oxide is 21.28%, the content of ferric oxide is 5.22%, and the content of calcium oxide is 24.57% ; The content of silica in river sand is 77.0%, and the mud content is 7.0%.

[0026] In Comparative Example 1, the formula of the autoclaved aerated concrete block, in parts by weight, includes the following components: 200 parts of fly ash, 200 parts of river sand, 10 parts of desulfurized gypsum, 75 parts of lime, and 85 parts of cement , 0.6 part of aluminum powder paste; Wherein the quality index of fly ash is identical with embodiment 1.

[0027] In Comparative Example 2, the formula of the autoclaved aerated concr...

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Abstract

The invention discloses an autoclaved aerated concrete block and a preparation process thereof. The autoclaved aerated concrete block is prepared from, by weight, 100-130 parts of fly ash, 260-300 parts of sand, 8-12 parts of gypsum, 75-80 parts of lime, 80-85 parts of cement and 0.5-0.7 part of aluminum powder paste; according to the invention, the application range of the low-quality fly ash generated by the combustion of the boiler of the thermal power plant is expanded, so that the treatment ways of the fly ash generated by the coal-fired boiler are greatly increased, the technical difficulty of manufacturing the high-quality autoclaved aerated concrete block by using the low-quality fly ash is overcome, and the practical value is very high.

Description

technical field [0001] The invention belongs to the technical field of concrete block production, and in particular relates to an autoclaved aerated concrete block and a preparation process thereof. Background technique [0002] With the development of society and the huge consumption of energy, building energy conservation has become a worldwide trend, and there is also a new demand for new wall materials. The autoclaved aerated concrete block is based on calcareous and siliceous materials, adding air-generating agent and air bubble stabilizer as raw materials, after grinding, batching, stirring, pouring, static stopping, cutting, pre-curing , autoclaved curing, finished products and other processes made of porous silicate blocks. Due to the advantages of low bulk density, thermal insulation, good earthquake resistance and strong constructability, aerated concrete blocks are widely used in the construction industry. At present, a large amount of low-quality fly ash produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/02
CPCC04B28/144C04B2201/20C04B2201/50C04B18/08C04B14/068C04B22/064C04B7/00C04B22/04C04B38/02
Inventor 张博明赵汉祺章介时周惠东朱扬吴亚娟林辉
Owner ZHEJIANG FUCHUNJIANG ENVIRONMENTAL THERMOELECTRIC CO LTD
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