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Production process for autoclaved aerated concrete building block

A concrete block and production process technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve problems such as endangering human health, shortage of raw material supply, and excessive radioactive substances, so as to save land, Light weight, good thermal insulation effect

Inactive Publication Date: 2014-12-03
YINGTAN SHENGJING IND
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Autoclaved aerated concrete blocks with fly ash as the main raw material have certain defects, such as: excessive radioactive substances, tight supply of raw materials, and poor frost resistance
In masonry construction, it cannot be well combined with mortar, and it is easy to cause quality accidents such as wall falling off, especially radioactive pollution that seriously endangers people's health

Method used

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Embodiment Construction

[0015] In order to describe in detail the technical content, structural features, achieved goals and effects of the present invention, the following descriptions will be made in conjunction with the embodiments.

[0016] The production technology of autoclaved aerated concrete block of the present invention comprises the following steps:

[0017] 1) Stone powder pulping: adding desulfurized gypsum to the tailings after copper mining and stone processing industry waste and scraps, and then wet grinding. The fineness is required to pass through a 0.08mm square hole sieve, and the sieve residue should not exceed 30%. Beating made stone powder slurry.

[0018] 2) Preparation of cement: crush the lime and ball mill until the fineness is no more than 20% after passing through a 0.08 square hole sieve to prepare the cement.

[0019] 3) Aluminum powder pretreatment: mix aluminum powder and degreasing agent to make a suspension.

[0020] 4) Ingredients: weigh 2300 parts of stone po...

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Abstract

The invention discloses a production process for an autoclaved aerated concrete building block. The production process comprises the following steps: (1), mixing tailings, coal ashes, stone powder and river sand to prepare a slurry; (2), preparing a gluing material; (3), treating aluminum powder; (4), distributing materials; (5), casting and molding; (6), cutting; and (7), carrying out steam-curing. According to the invention, the tailings obtained by mining local copper mine, waste residue stone powder of the stone processing industry, and leftover materials are mixed with the local rich river sand and few coal ashes. And 0.08 million ton of copper tailing waste residues and the waste residue stone powder of the stone industry can be consumed and absorbed each year. The production process has remarkable social benefits of improving the ecological environment.

Description

technical field [0001] The invention relates to the field of aerated concrete, in particular to a production process of an autoclaved aerated concrete block. Background technique [0002] The existing building wall materials include clay solid bricks and hollow bricks, and autoclaved aerated concrete blocks with fly ash as the main raw materials. There are no tailings after copper mining and waste slag and scraps from the stone processing industry. Production process of autoclaved aerated concrete blocks from waste materials. The autoclaved aerated concrete block with fly ash as the main raw material has certain defects, such as: excessive radioactive substances, tight supply of raw materials, and poor frost resistance. In masonry construction, it cannot be well combined with mortar, and it is easy to cause quality accidents such as wall falling off, especially radioactive pollution, which seriously endangers human health. Contents of the invention [0003] The purpose o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/00C04B18/12
CPCY02W30/91
Inventor 徐武义桂志龙
Owner YINGTAN SHENGJING IND
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