Autoclaved aerated concrete block and preparation method thereof

A concrete block, autoclaved aerated technology, applied in ceramic products, climate sustainability, other household appliances, etc., can solve the problems of wall cracking, low strength, large drying shrinkage value of ordinary aerated concrete, etc.

Inactive Publication Date: 2015-10-28
安徽恒创环保建材有限公司
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] As a new type of wall material, air-entrained concrete is a low-energy, environmentally-friendly new building material, which is very in line with the national policy requirements. However, due to the problems of large drying shrinkage and low strength of ordinary air-entrained concrete, it is not used in actual projects. It often leads to common prob

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Raw materials and weight percentage, choose one of the following formulas:

[0025] ① 60 kg of fly ash, 5 kg of gypsum, 22 kg of quicklime, 15 kg of cement, 8 kg of aluminum powder and appropriate amount of water.

[0026] ② 50 kg of fly ash, 5 kg of gypsum, 25 kg of quicklime, 15 kg of cement, 8 kg of aluminum powder and an appropriate amount of water.

[0027] ③ 68 kg of fly ash, 3 kg of gypsum, 18 kg of quicklime, 6 kg of cement, 8 kg of aluminum powder and appropriate amount of water. .

[0028] 2. The production method of aerated concrete block adopting the above formula, the production process of the method is:

[0029] (1) Preparation of raw materials

[0030] a. Preparation of fly ash puree

[0031] The process of mixing fly ash and gypsum to make slurry is adopted. During production, fly ash and gypsum are added to the beating tank together to make a mixed slurry. When adding water in pulping, add water quantitatively to make slurry with proper concentration. Then...

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PUM

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Abstract

The invention discloses an autoclaved aerated concrete block with high strength and low shrinkage value. The autoclaved aerated concrete block comprises the following components by weight: 50-68 parts of fly ash, 3-5 parts of gypsum, 18-25 parts of quicklime, 6-15 parts of cement, and 8 parts of aluminum powder. The autoclaved aerated concrete block itself is an environment-friendly novel building material with low energy consumption.

Description

Technical field [0001] The invention relates to a method for preparing autoclaved aerated concrete blocks. Background technique [0002] my country is a country with a large population and a shortage of energy and land. Traditional building materials, mainly sintered solid clay bricks, destroy a large number of fields, waste land resources and pollute the environment. Therefore, prohibiting the use of solid clay bricks in urban construction is a major national decision to implement sustainable development strategies. In accordance with the national land resources protection policy, the General Office of the State Council’s "Notice on Further Promoting Wall Material Innovation and the Promotion of Energy-saving Buildings" (Guobanfa [2005] No. 33) spirits, the National Development and Reform Commission, the Ministry of Land and Resources, the Ministry of Construction, The Ministry of Agriculture jointly issued the "Notice on Announcement of the Second Batch of List of Cities Proh...

Claims

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Application Information

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IPC IPC(8): C04B28/12C04B38/02C04B18/08C04B22/14C04B22/04
CPCY02W30/91
Inventor 倪敬国
Owner 安徽恒创环保建材有限公司
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