Non-steamed brick and preparation method thereof

A technology of non-steamed bricks and iron tailings, which is applied in the field of building materials, can solve the problems of costly construction and maintenance of iron tailings ponds, hidden safety hazards, land occupation, etc., achieve good prospects for industrial promotion, mild conditions, and improve economic and economic development. The effect of social benefits

Active Publication Date: 2012-02-01
武钢资源集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stockpiling of a large number of iron tailings not only occupies land, but also costs money to build and maintain iron tailings storage, and also pollutes the environment, causing safety hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A non-steaming brick, the components of which are calculated by weight percentage: 60% of iron tailing particles from a certain enterprise, 18% of 1-3mm river sand, 19% of 425 cement, and 3% of sodium sulfate. According to the test results of Si and Ca content in the iron tailings, add 6g of -200 mesh quartz powder before batching to adjust the silicon calcium weight ratio of the iron tailings raw materials to 1:1, and control the weight content of -200 mesh particle grades in the iron tailings raw materials 15%, the weight content of +200~-30 mesh particles is 30%, and the weight content of +30 mesh particles is 55%.

Embodiment 2

[0021] A non-steaming brick, the components of which are calculated by weight percentage: 75% of iron tailings particles from a certain enterprise, 5% of 1-3mm river sand, 17.5% of 425 cement, 1% of lignosulfonate, and 1.5% of water glass %. According to the test results of Si and Ca content in the iron tailings, add 3.6g of -200 mesh quartz powder before batching, adjust the silicon calcium weight ratio of the iron tailings raw materials to 1:1, and control the weight of -200 mesh particles in the iron tailings The content is 15%, the weight content of +200~-30 mesh particles is 15%, and the weight content of +30 mesh particles is 70%.

Embodiment 3

[0023] A non-steaming brick, the components of which are calculated by weight percentage: 85% of iron tailings particles from a certain enterprise, 5% of 1-3mm river sand, 8% of 425 cement, 0.5% of calcium chloride, 0.5% of urea, and 0.5% sodium ethyl silicate, 0.5% sodium ethyl silicate. According to the test results of Si and Ca content in the iron tailings, add -200 mesh lime powder 2.3g before batching, adjust the silicon calcium weight ratio of the iron tailings raw materials to 1:1, and control the weight of -200 mesh particles in the iron tailings The content is 20%, the weight content of +200~-30 mesh particles is 30%, and the weight content of +30 mesh particles is 50%.

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PUM

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Abstract

The invention discloses a non-steamed brick and a preparation method thereof. The non-steamed brick comprises the following components in percentage by weight: 60 to 85 percent of iron tailings, 5 to 18 percent of river sand, 8 to 20 percent of cement, and 0.5 to 3 percent of admixture, wherein the admixture is one or more of high-strength adhesive, water reducing agent and waterproof agent. The preparation method comprises the steps of proportioning, mixing, pressure molding and natural curing. Proved by practice, the non-steamed brick has simple component, low cost and excellent comprehensive performance; and the preparation method is mild in conditions and easy in operation.

Description

technical field [0001] The invention belongs to the technical field of building materials, and specifically refers to a steam-free brick and a preparation method thereof. Background technique [0002] Non-steamed bricks are made of industrial waste residue as the base material, cement, etc., with admixtures and natural curing after pressing and forming. The non-steamed bricks are not only light in weight, good in heat preservation, and good in sound absorption and sound insulation, but also have a certain It is an important new wall building material currently used due to its high strength and machinable properties. Commonly used non-steamed bricks are based on clay, fly ash, construction waste and non-metallic slag, and magnesium oxide or magnesium chloride solution is used as a cementing material to prepare non-sintered building bricks. However, these products do not have substantial water resistance protection, which limits the scope of application of the product, and du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/12C04B28/00B28B3/00
CPCY02W30/91
Inventor 颜钦武隋延力刘祥庆宋均平刘曙刘博华
Owner 武钢资源集团有限公司
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