Method for producing freeze thaw resisting ground water permeable bricks from gold and antimony mine tailings

A technology of permeable bricks and antimony tailings, applied in the application, household appliances, manufacturing tools, etc., can solve the problem of few permeable bricks, and achieve the effect of improving comprehensive utilization rate, good freeze-thaw resistance, and environmental protection

Active Publication Date: 2016-09-28
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tailings are widely used in the field of building materials. The technology of using tailings to make aerated concrete and tailings to make wood-based panels is very mature. However, there are few studies on using tailings to make permeable bricks.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for preparing antifreeze-thaw ground permeable bricks from gold-antimony tailings, comprising the following steps:

[0028] 1) Preparation of permeable brick base material: according to the percentage by weight of each raw material: 60% of gold antimony tailings, 10% of cement, 10% of river sand, 15% of fly ash, 5% of gypsum, and air-entraining agent by weight It is 0.05% of the total weight of each raw material; according to the water-solid ratio of 0.1, the gold-antimony tailings, cement, river sand, fly ash and gypsum are mixed and stirred with water, and the air-entraining agent is added during the stirring process to make the base material of the permeable brick ,spare;

[0029] 2) Preparation of permeable brick coloring layer blank: according to the weight percentage of each raw material: 60% of gold antimony tailings, 10% of cement, 10% of river sand, 15% of fly ash, 5% of gypsum, air-entraining agent by weight It is calculated as 0.05% of the total wei...

Embodiment 2

[0043] A method for preparing antifreeze-thaw ground permeable bricks from gold-antimony tailings, comprising the following steps:

[0044]1) Preparation of permeable brick base material: according to the percentage by weight of each raw material: 67% of gold antimony tailings, 10% of cement, 10% of river sand, 10% of fly ash, 3% of gypsum, and air-entraining agent by weight It is 0.03% of the total weight of each raw material; according to the water-solid ratio of 0.2, the gold-antimony tailings, cement, river sand, fly ash and gypsum are mixed and stirred with water, and the air-entraining agent is added during the stirring process to make the base material of the permeable brick ,spare;

[0045] 2) Preparation of permeable brick coloring layer blank: according to the weight percentage of each raw material: 60-70% of gold antimony tailings, 10-15% of cement, 10-15% of river sand, 10%-15% of fly ash, Gypsum 3-5%, the air-entraining agent is 0.03% of the total weight of each ...

Embodiment 3

[0059] A method for preparing antifreeze-thaw ground permeable bricks from gold-antimony tailings, comprising the following steps:

[0060] 1) Preparation of permeable brick base material: according to the percentage by weight of each raw material: 56% of gold antimony tailings, 13% of cement, 13% of river sand, 14% of fly ash, 4% of gypsum, and air-entraining agent by weight It is 0.04% of the total weight of each raw material; according to the water-solid ratio of 0.2, the gold-antimony tailings, cement, river sand, fly ash and gypsum are mixed and stirred with water, and the air-entraining agent is added during the stirring process to make the base material of the permeable brick ,spare;

[0061] 2) Preparation of permeable brick coloring layer blank: according to the percentage by weight of each raw material: 56% of gold antimony tailings, 13% of cement, 13% of river sand, 14% of fly ash, 4% of gypsum, air-entraining agent by weight It is calculated as 0.04% of the total ...

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Abstract

The invention discloses a method for producing freeze thaw resisting ground water permeable bricks from gold and antimony mine tailings. The water permeable bricks with the advantages of high strength, high water permeability, good freeze thaw resistance and beautiful color are produced by using fine gold and antimony mine tailings with high content of silicon as basic raw materials, and adding certain amounts of cement, fly ash, river sands, an air entraining agent and an inorganic pigment. The production method comprises the following steps: producing a water permeable brick base blank; producing a water permeable brick coloring layer blank; digesting the above two blanks; carrying out wheel grinding; carrying out compaction molding and autoclaved curing. The produced water permeable brick has the advantages of high compressive strength, high water permeability and good freeze thaw resistance, is especially suitable for high and cold regions in western China, accords with national relevant standards, has certain environmental protection significance, and opens up a new way for comprehensive utilization of mine tailing resources.

Description

technical field [0001] The invention relates to a method for producing permeable bricks, in particular to a method for producing freeze-thaw resistant ground permeable bricks by utilizing gold-antimony tailings, which is especially suitable for pavement paving in alpine regions. Background technique [0002] Tailings are the solid waste with the largest discharge in the mining industry. The accumulation of tailings not only occupies a large amount of land, but also causes great pollution to soil and water, and seriously damages the environment. According to statistics, my country's tailings discharge in 2010 was 1.2 billion tons, and the comprehensive utilization was only 170 million tons, with a comprehensive utilization rate of 14%. The comprehensive utilization technology of tailings urgently needs a breakthrough. SiO 2 Mainly, its content is 30-80%, followed by Al 2 o 3 etc. SiO in tailings 2 and Al 2 o 3 Such ingredients have potential gelling activity, and can e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/10C04B28/04C04B18/12C04B18/08B28B3/02B28B11/24
CPCB28B3/02B28B11/247C04B28/04C04B38/10C04B2111/00284C04B2111/0075C04B2201/50C04B18/12C04B14/068C04B18/08C04B22/143C04B24/34C04B2103/54C04B24/16C04B24/20Y02W30/91
Inventor 邓红卫周科平王巧莉张健李杰林
Owner CENT SOUTH UNIV
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