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Nonbearing concrete hollow brick manufactured by utilizing industrial solid wastes and processing method thereof

A technology for industrial solid waste and processing methods, applied in the field of building materials, can solve the problems of high f-CaO content, unstable steel slag, and pollute the environment, and achieve the effects of reducing bulk density, good social benefits, and good economic benefits.

Inactive Publication Date: 2013-05-22
南京梅山海强新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, a large amount of steel slag is disposed of by stacking, which not only takes up a lot of land, but also pollutes the environment
In recent years, the research work on the comprehensive utilization of steel slag has made great progress, mainly used in cement admixtures and concrete admixtures, but due to the instability of steel slag composition and the high content of f-CaO in it, it is used to make cement and concrete Admixtures, etc., are used in limited amounts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The non-load-bearing concrete hollow brick made of industrial solid waste includes: converter slag, mineral processing tailings powder, fly ash, and inorganic cementitious materials. The parts by weight of each component are: converter slag 40-60 parts, mineral processing tailings powder 20-30 parts, 5-10 parts of fly ash, 10-20 parts of inorganic gelling material.

[0032] The non-load-bearing concrete hollow brick made from industrial solid waste, the SiO in the converter slag 2 10-16%, CaO 39-45%, Al 2 o 3 2-4%, Fe 2 o 3 20-26%, MgO 9-12%, SO 3 0-1%, Na 2Oeq 0-1%, f-CaO 0-8%, loss on ignition 0-10%.

[0033] The non-load-bearing concrete hollow brick made by utilizing industrial solid waste, in the said ore dressing tailings powder: SiO 2 12-16%, CaO 30-35%, Al 2 o 3 2-5%, Fe 2 o 3 22-28%, MgO 7-10%, SO 3 0-1%, Na 2 Oeq 0-1%, f-CaO 0-5%, loss on ignition 0-14%.

[0034] The non-load-bearing concrete hollow brick made of industrial solid waste, ...

Embodiment 2

[0037] A method for processing a non-load-bearing concrete hollow brick made from industrial solid waste, the method comprising the following process steps:

[0038] (1) Add 40-60 parts of converter slag and 20-30 parts of beneficiation tailings powder according to the ratio of parts by weight, add 3-5 parts of water, stir and mix evenly, and age for 1-2 days;

[0039] (2) Add 5-10 parts by weight of fly ash, 10-20 parts of inorganic gelling material, and 7-10 parts of water to the aged material in step (1) and mix evenly before pressing Molding; Carry out curing then, curing temperature is controlled at 30-60 ℃, curing 14-28 days, inspection gets final product.

[0040] The processing method of the non-load-bearing concrete hollow brick made of industrial solid waste, the SiO in the converter slag 2 10-16%, CaO 39-45%, Al 2 o 3 2-4%, Fe 2 o 3 20-26%, MgO 9-12%, SO 3 0-1%, Na 2 Oeq 0-1%, f-CaO 0-8%, loss on ignition 0-10%.

[0041] The processing method of the non...

Embodiment 3

[0045] An application of industrial solid waste in making non-load-bearing concrete hollow bricks, the industrial solid waste includes converter slag, ore dressing tailings powder, and fly ash.

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Abstract

The invention provides a nonbearing concrete hollow brick manufactured by utilizing industrial solid wastes and a processing method thereof. The problems that a lot of the conventional steel slag is stacked, lots of lands are occupied and the environment is polluted are solved. The nonbearing concrete hollow brick manufactured by utilizing industrial solid wastes comprises the following components in parts by weight: 40-60 parts of converter slag, 20-30 parts of mill tailings powder, 5-10 parts of coal ash and 10-20 parts of inorganic gelatinization material. The method is used for manufacturing the nonbearing concrete hollow brick by utilizing industrial solid wastes.

Description

technical field [0001] The invention relates to a non-load-bearing concrete hollow brick made from industrial solid waste and a processing method thereof, belonging to the technical field of building materials. Background technique [0002] With the development of my country's national economy, people pay more and more attention to environmental protection and resource reuse. The development of green economy and improvement of green industry have also become the focus of governments and enterprises at all levels in order to meet the sustainable development of society. Steel slag is a solid waste in the steel industry, usually accounting for 12-20% of steel production. In 2010, my country’s crude steel output reached 626.65 million tons, pig iron production was 590.21 million tons, and steel slag production was about 81.47 million tons, with a comprehensive utilization rate of 21%. about. Wang Hai Group handles 300,000 tons of steel slag and other waste slag annually, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12C04B18/14C04B18/12
CPCY02W30/91
Inventor 刘伟徐玲玲刘方
Owner 南京梅山海强新型建材有限公司
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