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Autoclaved aerated concrete block with good mechanical strength and preparation method of autoclaved aerated concrete block

A concrete block, autoclaved aerated technology, applied in ceramic products, other household appliances, applications, etc., can solve the problem of hindering the application range of autoclaved aerated concrete blocks, the effect of fiber application is not particularly significant, and the impact of autoclaved Air-concrete block product quality and performance and other issues, to achieve the effect of improving hydrophobic performance and thermal stability, long service life, and optimal mechanical strength

Inactive Publication Date: 2016-03-16
DANGTU COUNTY KEHUI TRADING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the industrial production process of autoclaved air-entrained concrete blocks, steel wires are generally used to cut and shape the initially set air-entrained concrete, and the addition of too many fibers will affect the cutting of the air-entrained concrete, making the fibers The application effect in autoclaved aerated concrete is not particularly significant, which hinders its application range in autoclaved aerated concrete blocks, and also seriously affects the product quality and performance of autoclaved aerated concrete blocks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The autoclaved aerated concrete block with good mechanical strength is characterized in that it is made of the following raw materials in parts by weight: coal gangue 40, palygorskite powder 25, papermaking white mud 21, hazelnut shell powder 14, cement 4.7, aluminum powder paste 0.08, n-butyl titanate 5, acetic anhydride 54, waste plastic powder 6, antimony trioxide 2, asbestos fiber 7, cypress fiber 8, chlorinated paraffin 4, appropriate amount of water.

[0013] The preparation method comprises the following steps:

[0014] (1) Put the cypress fiber in an oven and dry it at 105°C for 1-2 hours. At the same time, pretreat it with steam for 20-40 minutes and put it into the reaction tank. hours, then heated to 100-140°C to react for 2-3 hours, rinsed with clean water until neutral drying, sprayed with n-butyl titanate to dry;

[0015] (2) Soak coal gangue, palygorskite powder, and papermaking white mud with 5-8% hydrochloric acid solution for 3-4 hours, wash until neu...

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PUM

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Abstract

The invention discloses an autoclaved aerated concrete block with good mechanical strength. According to the autoclaved aerated concrete block, by virtue of acetylation on cedar wood fibers, free hydroxyl in cellulose is closed, so that the hydrophobic property and the thermal stability of a material are improved; by adding other effective components through a physical modification method, the durability and the dispersibility of the fibers in autoclaved aerated concrete are improved; by adding the raw materials including coal gangue, palygorskite powder, papermaking white clay, asbestos fiber and the like, the aerated concrete block has excellent mechanical strength, high temperature resistance and water resistance, can be used for a long time at a high temperature environment, can be further used at a wet environment for a long time without mildewing and is long in service life and wide in application range.

Description

technical field [0001] The invention relates to the technical field of aerated blocks, in particular to an autoclaved aerated concrete block with good mechanical strength and a manufacturing method thereof. Background technique [0002] As one of the important varieties of new wall materials, autoclaved aerated concrete blocks have many advantages such as good thermal insulation effect, good fire performance, sound insulation, light weight, and environmental protection compared with traditional clay fired bricks. However, the volume deformation coefficient of air-entrained concrete blocks is relatively large, the strength is relatively low, and the water absorption rate is high. When building a wall, the wall is prone to cracks, and the plaster layer is prone to large-scale cracks, hollowing and falling off. , showing obvious brittleness, which hinders the further application and promotion of autoclaved aerated concrete blocks to a certain extent. Fiber, as a good cement ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B38/02C04B16/02C04B20/02C04B18/02C04B14/40
CPCC04B28/00C04B16/02C04B2201/20C04B2201/30C04B2201/50C04B14/40C04B14/30C04B18/023C04B18/20C04B22/04C04B24/36C04B38/02C04B40/024C04B20/023C04B20/04
Inventor 董良清
Owner DANGTU COUNTY KEHUI TRADING
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