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Modified-bauxite hollow brick and preparation method thereof

A bauxite and hollow brick technology, applied in the field of modified bauxite hollow bricks and their preparation, can solve the problems of high energy consumption, increased production cost, low compressive strength, etc. The effect of increasing the compressive strength

Inactive Publication Date: 2017-10-20
HEFEI HUAGAI PHOTOVOLTIAC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current existing hollow bricks have the disadvantage of low compressive strength, so that the buildings made of hollow bricks have poor earthquake resistance, and there are certain hidden dangers of collapse. In addition, the existing hollow bricks have complicated production processes and high energy consumption, resulting in increased production costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A modified bauxite hollow brick, the following raw materials are prepared for use: 50kg of modified bauxite, 20kg of coal gangue, 15kg of shale pottery sand, 10kg of sodium zeolite, 10kg of volcanic rock fiber, 5kg of waste glass aggregate, and 6kg of zirconium silicate , calcium lignosulfonate 4kg, foaming agent 1kg, water reducer 1kg, early strength agent 1kg and activator 1kg;

[0025] The above-mentioned modified bauxite is prepared by the following steps: weigh 50 kg of bauxite and transport it to a calciner, roast it at a temperature of 380 ° C for 2 hours, take it out and cool it, soak it in 8% hydrochloric acid solution for 1 hour, and then use deionized Wash with water until neutral, dry, then add sodium lauryl sulfate equivalent to 2% by weight of bauxite, chlorinated paraffin equivalent to 1% by weight of bauxite, polyisobutylene equivalent to 2% by weight of bauxite and The modified bauxite required by the raw material of the present invention is prepared by...

Embodiment 2

[0032] A modified bauxite hollow brick, the following raw materials are prepared for use: 60kg of modified bauxite, 25kg of coal gangue, 20kg of shale pottery sand, 15kg of sodium zeolite, 15kg of volcanic rock fiber, 10kg of waste glass aggregate, and 8kg of zirconium silicate , calcium lignosulfonate 6kg, foaming agent 3kg, water reducer 2kg, early strength agent 3kg and activator 2kg;

[0033] The above-mentioned modified bauxite is obtained through the following steps: weigh 60 kg of bauxite and transport it to a calciner, roast it at a temperature of 400° C. for 2.5 hours, take it out and soak it in 10% hydrochloric acid solution for 1.5 hours, then use Wash with deionized water until neutral, dry, then add sodium lauryl sulfate equivalent to 3% of the weight of bauxite, chlorinated paraffin equivalent to 2% of the weight of bauxite, polyvinyl alcohol equivalent to 3% of the weight of bauxite Isobutene and 4% magnesium oxide powder corresponding to the weight of bauxite a...

Embodiment 3

[0040] A modified bauxite hollow brick, the following raw materials are prepared for use: 70kg of modified bauxite, 30kg of coal gangue, 25kg of shale pottery sand, 20kg of sodium zeolite, 20kg of volcanic rock fiber, 15kg of waste glass aggregate, and 10kg of zirconium silicate , calcium lignosulfonate 8kg, foaming agent 5kg, water reducer 3kg, early strength agent 5kg and activator 3kg;

[0041] The above-mentioned modified bauxite is prepared by the following steps: weigh 70kg of bauxite and transport it to a calciner, roast it at a temperature of 420°C for 3 hours, take it out and cool it, soak it in 12% hydrochloric acid solution for 2 hours, and then use deionized Wash with water until neutral, dry, then add sodium lauryl sulfate equivalent to 4% of the weight of bauxite, chlorinated paraffin equivalent to 3% of the weight of bauxite, polyisobutylene equivalent to 4% of the weight of bauxite and The magnesia powder corresponding to 5% of the weight of bauxite is stirred an...

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PUM

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Abstract

The invention discloses a modified-bauxite hollow brick and a preparation method thereof, and relates to the technical field of novel building materials. The hollow brick comprises the following raw materials: modified bauxite, coal gangue, shale pottery sand, natrolite, volcanic rock fibers, waste glass aggregate, zirconium silicate, calcium lignosulfonate, a foaming agent, a water reducing agent, an early strength agent and an exciting agent. The modified-bauxite hollow brick is prepared by uniform mixing, aging, injection molding, cutting, baking and sun drying of the above raw materials. According to the invention, the preparation method of the hollow brick is simple and convenient, production energy consumption is low, the dry density of the finished hollow brick is low, transportation and construction are convenient, compared with bricks sold in markets, the hollow brick has higher compressive strength, and the hollow brick is safe and reliable, and suitable for promotion and application.

Description

technical field [0001] The invention relates to the technical field of new building materials, in particular to a modified bauxite hollow brick and a preparation method thereof. Background technique [0002] With the rapid development of the national economy and the continuous improvement of people's living standards, the consumption of energy is also increasing, and the problem of energy shortage is becoming more and more prominent. Therefore, people pay more and more attention to energy-saving and environmentally friendly building materials. One of them is widely used. Usually, the lower hollow brick is made of clay, shale, etc. as the main raw materials, which are processed, shaped and sintered. The percentage of the total area of ​​holes in the hollow brick to the area of ​​the brick where it is located is called the porosity of the hollow brick, which should generally be above 40%. Compared with solid bricks, hollow bricks can save a lot of land, soil and fuel for burn...

Claims

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Application Information

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IPC IPC(8): C04B30/02C04B20/04C04B38/02C04B111/40
CPCC04B30/02C04B20/04C04B2111/40C04B2201/20C04B2201/50C04B14/303C04B18/12C04B18/023C04B14/047C04B14/46C04B14/22C04B14/046C04B24/18C04B22/10C04B22/085C04B22/14C04B24/16C04B24/36C04B24/2611C04B22/066C04B38/02C04B20/023C04B20/026
Inventor 王磊
Owner HEFEI HUAGAI PHOTOVOLTIAC TECH CO LTD
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