Aerated concrete block production process

A technology of aerated concrete and production process, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of inconvenient treatment, insufficient utilization of quartz tailings, environmental damage, etc., and achieves low cost and weight. Light, anti-stress light effect

Inactive Publication Date: 2015-10-28
凤阳九龙新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above prior art, the purpose of the present invention is to overcome the insufficient utilization of quartz tailings in the prior art, even as a kind of dumped solid waste, which is not only inconvenient to handle, but also causes damage to the environment, thereby providing a quartz tailing Sand tailings are the main raw material, and the produced products are low dry density, high compressive strength and other high-standard performance aerated concrete block production technology

Method used

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  • Aerated concrete block production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Mix 400kg of quartz tailing fine powder with a particle size of less than 0.125mm and 230kg of water together to make slurry A, and pump it into the slurry B mixer; then grind 110kg of lime powder and 21kg of gypsum powder in a ball mill, and mix Mix 35kg of cement, 0.35kg of foaming agent, and 0.045kg of stabilizer into the slurry B mixer; each raw material is stirred in the slurry B mixer, and steam is sent to increase the temperature of the material, and the stirred slurry is then injected through 0.25kg The mold treated with the release agent; after initial setting in the hot chamber, green body cutting, and static stop in the hot chamber, place it in a microwave autoclave to vacuumize to a pressure of 0.08MPa, and keep it for 1.5h; increase the pressure at a constant speed for 2.2h to the pressure After reaching 1.5MPa, the constant pressure was maintained for 11 hours; after the pressure was reduced to 0.1MPa at a constant speed for 2.5 hours, the aerated concrete ...

Embodiment 2

[0038]Mix 450kg of quartz tailing fine powder with a particle size of less than 0.125mm and 270kg of water to make slurry A, and pump it into the slurry B mixer; then grind 130kg of lime powder and 25kg of gypsum powder in a ball mill, and mix Mix 38kg of cement, 0.45kg of foaming agent, and 0.055kg of stabilizer into the slurry B mixer; each raw material is stirred in the slurry B mixer, and steam is sent to increase the temperature of the material, and the stirred slurry is then injected through 0.35kg The mold treated with the release agent; after initial setting in the hot chamber, green body cutting, and static stop in the hot chamber, place it in a microwave autoclave to vacuumize to a pressure of 0.08MPa, and keep it for 1.5h; increase the pressure at a constant speed for 2.2h to the pressure After reaching 1.5MPa, the constant pressure was maintained for 11 hours; after the pressure was reduced to 0.1MPa at a constant speed for 2.5 hours, the aerated concrete block F1 w...

Embodiment 3

[0040] Mix 425kg of quartz tailing fine powder with a particle size of less than 0.125mm and 250kg of water together to make slurry A, and pump it into the slurry B mixer; then grind 120kg of lime powder and 23kg of gypsum powder in a ball mill, and mix them Mix 36.5kg of cement, 0.4kg of foaming agent, and 0.05kg of stabilizer into the slurry B mixer; each raw material is stirred in the slurry B mixer, and steam is sent to increase the temperature of the material, and the stirred slurry is then injected after 0.3 kg mold release agent treatment; after initial setting in the hot chamber, green body cutting, and static stop in the hot chamber, place it in a microwave autoclave to vacuumize to a pressure of 0.08MPa, and keep it for 1.5h; increase the pressure at a constant speed for 2.2h to After the pressure was 1.5MPa, the constant pressure was maintained for 11 hours; after the pressure was reduced to 0.1MPa at a constant speed for 2.5 hours, the aerated concrete block G1 was ...

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Abstract

The invention relates to the field of building engineering materials, in particular to an aerated concrete block production process. Low-density, high-compressive-strength and high-standard-performance aerated concrete blocks are manufactured specifically with quartz sand tailings as main raw materials by adding lime powder, gypsum powder, cement, foaming agents, foam stabilizer, water and the like and conducting the following steps of material preparing, material mixing, stirring, pouring, hot chamber initial setting, blank body cutting, hot chamber standing, microwave autoclaved curing and the like, wherein the grain size of the quartz sand tailings is smaller than 0.125 mm, and by mass, 350 parts to 500 parts of fine quartz tailing powder, 80 parts to 150 parts of lime powder, 20 parts to 30 parts of gypsum powder, 30 parts to 40 parts of cement, 0.3 part to 0.5 part of foaming agents, 0.04 part to 0.06 part of foam stabilizer and 200 parts to 300 parts of water are used. The fine quartz tailing powder with the grain size smaller than 0.125 mm is used as the main silica raw material, waste is used, and the production cost of the aerated concrete blocks is reduced.

Description

technical field [0001] The invention relates to a production process of an aerated concrete block, which belongs to the field of building engineering materials. technical background [0002] Autoclaved aerated concrete block is a new type of building material that is lightweight, porous, heat-insulating, good in fire resistance, can be nailed, sawed, planed, and has a certain degree of earthquake resistance. performance and relatively economical raw materials. The production principle of autoclaved aerated concrete blocks is to use siliceous materials, calcareous materials, and in addition, add an appropriate amount of regulating materials and a small amount of gas-generating materials. These raw materials are processed, mixed with ingredients, and poured into the mold for gas-generating initial setting; then Cut it and put it in an autoclave for curing until it is stacked and loaded. [0003] With the continuous development of the glass industry and the rise of the photov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/02C04B18/12
CPCY02W30/91
Inventor 李仁武李让全李稳
Owner 凤阳九龙新型建材有限公司
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