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High-strength sintered brick

A sintered brick, high-strength technology, applied in the field of sintered bricks, to achieve the effects of improved performance, good hydrolysis, and simple operation

Inactive Publication Date: 2017-06-27
安徽贯华新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-strength sintered brick that solves the problem of strength requirements of recycled concrete products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] A high-strength fired brick, the preparation method comprising the following steps:

[0023] (1) Put the white mud of papermaking waste into the pulping tank to make a slurry with a solid content of 20%; heat the slurry to 45°C, mix it with corn stalks, and then add sodium lauryl sulfate, After stirring for 80 minutes, dry and extrude into blocks to obtain block materials for later use; inject acid solution with a concentration of 0.5% into the reaction kettle until the block materials are soaked, and after 60 minutes, keep the pressure at 0.3-0.4MPa for 1 hour to obtain Straw hydrolyzate, using CaO to adjust the pH of the straw hydrolyzate to 6.0 to obtain a hydrolyzate for later use;

[0024] (2) After the hydrolyzate is dried, add potassium permanganate solution with a concentration of 0.05-0.1M, oxidize at room temperature for 1-2 hours, wash with water, and after drying, add hydrogen sulfite equivalent to 9-15% of the drying material Na, carry out sulfonation reac...

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PUM

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Abstract

The invention discloses a high-strength sintered brick. The high-strength sintered brick is prepared from, by weight, 10-20 parts of riverway silt, 5-8 parts of cement, 20-40 parts of perlite powder, 50-55 parts of pulverized fuel ash, 12-15 parts of lime, 2-5 parts of iron trioxide, 0.1-0.2 part of sulfonated material and 3-6 parts of polycarboxylate superplasticizer. The riverway silt is dried and ground to reach the particle size of 1 mm or below and then is evenly mixed with residual raw materials to obtain a mixed material for usage; a proper amount of water is added to the mixed material for uniformizing, ageing, drying and calcination. The high-strength sintered brick is simple in operation, the sulfonated material is prepared by using hydrolysate, the performance of a water reducing agent is improved, and the obtained sintered brick is high in strength while waste utilization is achieved.

Description

technical field [0001] The invention relates to the field of sintered bricks, in particular to a high-strength sintered brick. Background technique [0002] Wall bricks are divided into fired bricks and non-fired bricks according to different production processes. Sintered brick has a history of more than two thousand years in our country, and it is still a very wide wall material today. There are many types of bricks, which are divided into clay bricks, shale bricks, coal gangue bricks, fly ash bricks, lime sand bricks and slag bricks according to the raw materials used; according to the production process, they can be divided into fired bricks and non-fired bricks, of which non-fired Bricks can be divided into pressed bricks, steam-cured bricks and autoclaved bricks, etc.; according to the presence or absence of holes, they can be divided into ordinary bricks, porous bricks, and hollow bricks. Sintered bricks: Nowadays, ordinary clay bricks still dominate the wall materi...

Claims

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Application Information

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IPC IPC(8): C04B33/13C04B33/132C04B33/135
CPCC04B33/1305C04B33/131C04B33/1321C04B33/1352C04B2235/3208C04B2235/3272C04B2235/3463C04B2235/48Y02P40/60
Inventor 张媛媛
Owner 安徽贯华新材料科技有限公司
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