Preparation method of sound-absorbing autoclaved aerated concrete block

A concrete block, autoclaved and aerated technology, which is applied to ceramic products, other household utensils, household utensils, etc., can solve the problems of low construction cost, poor sound absorption and sound insulation effect, hidden dangers of building safety, etc. The effect of light bulk density, lower density and lower production cost

Inactive Publication Date: 2018-01-12
TONGLING FENGZE BUILDING MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the autoclaved aerated concrete block is widely used in China, which has low production cost and low construction cost. Its d

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1

[0016] The method for preparing sound-absorbing autoclaved aerated concrete block proposed by the present invention includes the following steps: mixing tailings clay compound, coal gangue, expanded perlite, glutinous rice flour, precipitated barium sulfate, heating and mixing wet grinding, and then heating, Add iron powder and foam stabilizer, stir, press to shape, pre-curing, and autoclave to obtain sound-absorbing autoclaved aerated concrete block.

Example Embodiment

[0017] Example 2

[0018] The method for preparing sound-absorbing autoclaved aerated concrete block proposed by the present invention includes the following steps: according to weight parts, 60 parts of tailing clay compound, 35 parts of coal gangue, 10 parts of expanded perlite, 12 parts of glutinous rice flour, 2 parts Part of precipitated barium sulfate, heated to 50°C and mixed wet milling, then heated to 65°C, added 3 parts of iron powder, 1 part of foam stabilizer and stirred for 14min, pressed into shape, pressing pressure was 15Mpa, pre-cultivation 2h, autoclaved treatment 10h, The autoclaved temperature is 195°C, and the autoclaved pressure is 15Mpa to obtain sound-absorbing autoclaved aerated concrete blocks.

Example Embodiment

[0019] Example 3

[0020] The method for preparing sound-absorbing autoclaved aerated concrete block provided by the present invention includes the following steps: 80 parts of tailing clay compound, 25 parts of coal gangue, 20 parts of expanded perlite, 4 parts of glutinous rice flour, 8 parts by weight Part of precipitated barium sulfate, heated to 40℃, mixed wet milling, then heated to 75℃, added 1 part of iron powder, 2 parts of foam stabilizer and stirred for 10min, pressed into shape, pressing pressure was 18Mpa, pre-cultivation 1h, autoclaved treatment for 16h, The autoclaved temperature is 185°C, and the autoclaved pressure is 18Mpa to obtain sound-absorbing autoclaved aerated concrete blocks.

[0021] The tailings clay compound is prepared by the following process: feed the tailings, clay, epoxy resin, and toluene into the mixer, heat up and stir, add diethyldiethoxysilane and stir, add disproportionated rosin and soybean phospholipid and continue to stir. After filtering...

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PUM

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Abstract

The invention discloses a preparation method of a sound-absorbing autoclaved aerated concrete block. The preparation method comprises the following steps: heating, mixing and performing wet milling ona tailing-clay compound, coal gangue, expanded perlite, glutinous rice flour and precipitated barium sulfate, then heating, adding iron powder and a foam stabilizing agent, stirring, performing compression moulding, precuring, and autoclaving to obtain the sound-absorbing autoclaved aerated concrete block, wherein the tailing-clay compound is prepared according to the following technology: sending a tailing, clay, epoxy resin and methylbenzene into a mixing machine, heating while stirring, adding diethyldiethoxysilane, stirring, adding disproportionated rosin and soy lecithin, continuing stirring, filtering, washing a filter cake by using methylbenzene, drying and crushing to obtain the tailing-clay compound. The sound-absorbing autoclaved aerated concrete block prepared according to thepreparation method provided by the invention has uniform internal pore sizes, can form independent closed pores, and has excellent sound-absorbing and sound-insulating performance; in addition, due toa good pore structure, the strength of the sound-absorbing autoclaved aerated concrete block is higher than that of a block produced by an ordinary technology, and the density can be relatively reduced.

Description

Technical field [0001] The invention relates to the technical field of autoclaved aerated concrete blocks, in particular to a method for preparing sound-absorbing autoclaved aerated concrete blocks. Background technique [0002] At present, large-scale urban infrastructure construction, housing construction, and improvement of people's livelihood projects are underway in many areas of our country. However, the scarcity of land resources has made the floors built higher and higher, and the load-bearing capacity of the land has almost reached the limit. There have also been safety accidents of foundation sinking and building tilt in many places. How to develop lighter and safer building materials? Major issues facing in the future. [0003] With the development of science and technology, various lightweight building materials have appeared one after another. At present, autoclaved aerated concrete blocks are widely used in China, which have low production costs and low construction...

Claims

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Application Information

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IPC IPC(8): C04B26/28C04B38/00C04B111/40C04B111/52
Inventor 丁军
Owner TONGLING FENGZE BUILDING MATERIALS TECH
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