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Anti-radiation aerated concrete containing lead and zinc tailings

A technology of air-entrained concrete and radiation protection, which is applied in the field of environment and building materials, can solve the problems of unobvious economic benefits and high extraction costs, and achieve the effects of improving radiation protection performance, reducing production costs, and saving production time

Inactive Publication Date: 2019-09-06
南京坤元材料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The value of barite among the high value-added elements in lead-zinc tailings is relatively high, but the main problem is that the extraction cost is high, and the economic benefits of special extraction are not obvious. In view of this, it is necessary to study a kind of lead-zinc tailings anti-radiation air-entrained concrete

Method used

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  • Anti-radiation aerated concrete containing lead and zinc tailings

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Effect test

Embodiment 1

[0021] A radiation-proof aerated concrete containing lead-zinc tailings, comprising the following components by mass percentage: 5% lead-zinc tailings, 5% cement, 10% fine sand, 10% fly ash, and 10% quicklime , gypsum 1% and aluminum powder paste 0.05%.

Embodiment 2

[0023] A radiation-proof aerated concrete containing lead-zinc tailings, comprising the following components by mass percentage: 20% lead-zinc tailings, 15% cement, 40% fine sand, 40% fly ash, and 20% quicklime , gypsum 5% and aluminum powder paste 0.10%.

Embodiment 3

[0025] A radiation-proof aerated concrete containing lead-zinc tailings, comprising the following components by mass percentage: 10% lead-zinc tailings, 10% cement, 20% fine sand, 25% fly ash, and 15% quicklime , gypsum 3% and aluminum powder paste 0.07%.

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Abstract

The invention discloses anti-radiation aerated concrete containing lead and zinc tailings. The anti-radiation aerated concrete is prepared from, by mass percentage, 5-20% of lead and zinc tailings, 5-15% of cement, 10-40% of fine sand, 10-40% of fly ash, 10-20% of quicklime, 1-5% of gypsum and 0.05-0.10% of aluminum powder paste. Accordingly, high added-value utilization of the lead and zinc tailings can be achieved, the production cost is lowered, and the anti-radiation property of the aerated concrete is improved.

Description

technical field [0001] The invention belongs to the field of environment and building materials, in particular to a radiation-proof aerated concrete containing lead and zinc tailings. Background technique [0002] The management and control of mine tailings dams has always been a difficult problem for mining enterprises. On the one hand, there are environmental pollution problems such as dust and heavy metal leaching, and on the other hand, there are safety problems such as dam failures, and related cases occur frequently at home and abroad. To solve this problem The best way to solve the problem is to safely recycle the tailings. The direction of cement concrete can meet this demand, and cement curing can effectively solidify and stabilize most heavy metals, and the annual output of concrete in my country has exceeded 2 billion m3 for many years 3 In many places, the shortage of sandstone and admixture resources has caused the price to skyrocket. However, the discharge of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/02C04B111/40C04B111/52
CPCC04B28/04C04B38/02C04B2111/00258C04B2111/40C04B2111/52C04B2201/20C04B2201/50C04B18/12C04B14/06C04B18/08C04B22/064C04B22/04C04B22/143C04B22/145
Inventor 王明远许毓海罗忠涛苏振华江皇义
Owner 南京坤元材料有限公司
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