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Production technology for autoclaved aerated concrete building blocks

A concrete block and production process technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of excessive radioactive substances, tight supply and demand of raw materials, and endangering human health, and achieve light weight and energy saving Good effect of land and thermal insulation performance

Active Publication Date: 2014-03-12
FUJIAN HONGWEI ENVIRONMENTAL PROTECTION BUILDING MATERIALS
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  • Abstract
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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 and demand of raw materials, poor frost resistance, and cannot be well combined with mortar during masonry construction, which may easily cause the wall to fall off and other quality accidents, especially radioactive pollution that seriously endangers human health

Method used

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Embodiment Construction

[0016] In order to describe in detail the technical content, structural features, achieved objectives and effects of the present invention, the following will be described in detail in conjunction with the embodiments.

[0017] The production technology of autoclaved aerated concrete block of the present invention comprises the following steps:

[0018] 1) Stone powder pulping: Wet grinding waste stone powder and leftovers from stone processing, filtering through a 490D hole sieve, and making stone powder slurry by grinding and beating;

[0019] 2) Preparation of cement: crush lime and desulfurized gypsum, and ball mill to a fineness of 80 mesh to prepare cement;

[0020] 3) Aluminum powder pretreatment: mix aluminum powder and degreasing agent to make a suspension;

[0021] 4) Ingredients: Weigh 2650 parts of stone powder slurry, 240 parts of cement, 230 parts of cement, 1000 parts of water and 1.62 parts of suspension, and stir them with a mixer to form a green body slurry....

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Abstract

The invention discloses a production technology for autoclaved aerated concrete building blocks. The production technology comprises the following steps of limestone powder pulping, glued material preparation, aluminum powder pretreatment, mixing, pouring molding, cutting and steaming. The autoclaved aerated concrete building blocks prepared by the production technology disclosed by the invention has the advantages of light weight, high heat preservation performance, certain intensity, processability and the like and can be used for making wall body building blocks, wall plates, floors, roofs, heat preservation plates, heat preservation pipes and the like. According to the production technology, other industrial waste materials such as waste residue limestone powder and scraps of the stone processing industry are mainly used, and the waste residue limestone powder of the stone industry and waste residues of other industries can be consumed and absorbed by 32.1 tons every year; the production technology has the outstanding effects of improvement on the ecological environment and the social benefit.

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] Existing building wall materials include clay solid bricks, hollow bricks, and autoclaved aerated concrete blocks with fly ash as the main raw materials. There is no autoclaved production of waste slag, stone powder, scraps and other industrial waste from the stone processing industry. Air-entrained concrete blocks. Autoclaved aerated concrete blocks with fly ash as the main raw material have certain defects, such as: excessive radioactive substances, tight supply and demand of raw materials, poor frost resistance, and cannot be well combined with mortar during masonry construction, which may easily cause the wall to fall off Such quality accidents, especially radioactive pollution, seriously endanger human health. Contents of the invention [0003] The purpose of the present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B18/12C04B38/02
CPCY02W30/91
Inventor 陈星
Owner FUJIAN HONGWEI ENVIRONMENTAL PROTECTION BUILDING MATERIALS
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