Freeze-thaw resistant cement hollow brick and preparation method thereof

A hollow brick, freeze-thaw-resistant technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of limiting the use range of cement hollow bricks, shortening the service life of cement hollow bricks, easy to freeze-thaw damage, etc. Improve freeze-thaw resistance, improve mechanical properties and chemical stability and other properties, improve mechanical strength and weather resistance

Inactive Publication Date: 2016-09-28
ANHUI XINRUN NEW MATERIALS
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Problems solved by technology

However, at present, cement hollow bricks are prone to freeze-thaw damage in low temperature environments, resulting in cracks, thereby shortening the service life of cement hollow bricks and limiting the scope of use of cement hollow bricks

Method used

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  • Freeze-thaw resistant cement hollow brick and preparation method thereof

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Embodiment Construction

[0014] A freeze-thaw resistant cement hollow brick, made of the following raw materials in weight (kg): Ordinary Portland cement 46, construction waste 25, mountain sand 18, sulfur-fixed ash 10, hornblende 7, silicon micropowder 12, barium carbonate 4.5, halloysite slag 10, copper mine tailings 6, coal gangue 9, electrolytic manganese slag 12, boron mud 8, loess 9, calcium nitrite 3, urea 4, sodium acetate 2.5, 1,3-propanediol 1.5 , Dibasic calcium phosphate 6, hydroxypropyl methylcellulose 7, appropriate amount of water.

[0015] A method for preparing a freeze-thaw resistant cement hollow brick, comprising the following steps:

[0016] (1) Mix coal gangue, electrolytic manganese slag, boron mud, and loess evenly, pulverize them, pass through a 60-mesh sieve, add an appropriate amount of water, stir well, make balls, and the particle size is controlled at 4mm, and then the prepared raw meal balls Dry at 105°C until the moisture content is below 3%, and then put the dried raw...

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Abstract

The invention discloses a freeze-thaw resistant cement hollow brick and a preparation method thereof. The brick of the invention is prepared from the following raw materials (by weight): 42-54 parts of ordinary Portland cement, 22-28 parts of construction waste residue, 16-22 parts of mountain sand, 8-14 parts of sulfur fixation ash, 5-10 parts of hornblende, 10-15 parts of silica powder, 3-6 parts of barium carbonate, 8-12 parts of halloysite slag, 4-8 parts of copper ore tailings, 7-11 parts of coal gangue, 9-14 parts of electrolytic manganese residue, 5-10 parts of boric sludge, 6-12 parts of loess, 2-4 parts of calcium nitrite, 3-5 parts of urea, 2-3 parts of sodium acetate, 1-2 parts of 1,3-propylene glycol, 4-8 parts of calcium hydrophosphate, 6-9 parts of hydroxypropyl methyl cellulose and a proper amount of water. By compounding of raw materials including calcium nitrite, urea, sodium acetate, 1,3-propylene glycol and the like, freeze-thaw resistance of the cement hollow brick is enhanced, and the brick will not crack after 50 times of frozen-thaw cycles in an environment of minus 45 DEG C.

Description

technical field [0001] The invention relates to a hollow brick and a preparation method thereof, in particular to a freeze-thaw resistant cement hollow brick and a preparation method thereof. Background technique [0002] Cement hollow brick is a new type of wall material, which has the advantages of light weight, high strength and good thermal insulation performance. The production and use of this new type of wall material can achieve the purposes of energy saving, land saving, water saving, waste utilization, increasing the effective use area of ​​buildings, shortening the construction period, etc. It has incomparable advantages over traditional clay bricks and is a substitute for solid clay bricks. One of the preferred materials for bricks is strongly supported by the national industrial policy. However, at present, cement hollow bricks are easily damaged by freezing and thawing in a low temperature environment, resulting in cracks, thereby shortening the service life of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/04C04B14/06C04B14/10C04B18/04C04B18/12C04B18/14C04B18/16C04B22/08C04B22/10C04B22/16C04B24/02C04B24/04C04B24/12C04B24/38
CPCC04B28/04C04B2111/76C04B18/167C04B14/068C04B18/0427C04B14/041C04B14/062C04B22/10C04B14/104C04B18/12C04B18/144C04B18/0418C04B14/04C04B22/085C04B24/126C04B24/04C04B24/02C04B22/16C04B24/383Y02W30/91
Inventor 朱安会马洪章
Owner ANHUI XINRUN NEW MATERIALS
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