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High-strength aerated concrete block and preparation method thereof

An air-entrained concrete, high-strength technology, applied in the field of building materials, can solve the problems of low strength, achieve high compressive strength, improve compressive strength, and reduce shrinkage

Inactive Publication Date: 2013-10-02
富强科技股份有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide high-strength aerated concrete block and its preparation method to solve the problem of low strength existing in aerated concrete block

Method used

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Embodiment Construction

[0013] A high-strength aerated concrete block made of the following raw materials in parts by weight (kg): cement 25, quicklime 10, gypsum 15, aluminum powder 0.2, polyvinyl alcohol 15, polycarboxylate superplasticizer 5, sawdust 12 , oil foot 8, branch powder 5, clay 5, sodium persulfate 5, gravel 30, 3-aminopropyltrimethoxysilane 4.

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

[0015] (1) Add appropriate amount of water to sawdust, branch powder and clay, heat to 80-90°C, stir for 20-30 minutes, add oil foot, polyvinyl alcohol, stir for 15-25 minutes, then add sodium persulfate, stir for 30 minutes -After 45 minutes, add 3-aminopropyltrimethoxysilane and stir for 20-30 minutes, stirring into mud;

[0016] (2) Add cement and gypsum to 90-100°C hot water and mix for 15-25 minutes, then add the mud obtained in step (1), quicklime, aluminum powder, gravel, polycarboxylate superplasticizer and...

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Abstract

The invention relates to a high-strength aerated concrete block and a preparation method thereof. The high-strength aerated concrete block is prepared by the following raw materials by weight: 25-30 parts of cement, 10-15 parts of quicklime, 12-15 parts of gypsum, 0.15-0.2 part of aluminum powder, 10-15 parts of propylene glycol, 3-5 parts of a polycarboxylate water reducing agent, 12-15 parts of saw dust,5-8 parts of oil residues, 3-5 parts of branch powder, 5-8 parts of clay, 3-5 parts of sodium persulfate, 30-35 parts of gravels and 4-6 parts of 3-aminopropyl trimethoxysilane. Cement consumption in the high-strength aerated concrete block is relatively large, and the polycarboxylate water reducing agent and the gravels are added, so that compressive strength of the block is obviously enhanced, thereby meeting actual production requirements.

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 a high-strength aerated concrete block and a preparation method thereof, so as to solve the problem of low strength of the current aerated concrete block. [0004] Technical scheme of the...

Claims

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Application Information

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IPC IPC(8): C04B38/02C04B28/14
Inventor 梅树田
Owner 富强科技股份有限公司
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