Concrete containing copper tailings and preparation method thereof

A technology of copper tailings and concrete, which is applied in the field of comprehensive utilization of building materials and solid waste resources, can solve problems such as environmental pollution, waste of resources, and depletion of natural sand resources, so as to alleviate environmental pollution, reduce cost, reduce waste of resources and protect the environment. pollution effect
CN110498651AInactive Publication Date: 2019-11-26中条山有色金属集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
中条山有色金属集团有限公司
Publication Date
2019-11-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a concrete containing copper tailings and a preparation method thereof, and aims to solve the technical problems of environmental pollution and wasting of resources caused bystacking of copper tailings. According to a technical scheme, the concrete containing copper tailings is composed of the following raw materials by weight percentage: 9-30% of copper tailing sand, 7-8% of water, 12-20% of cement, 0-25% of coarse sand, 40-45% of stone and 0.2-0.4% of an admixture. Specifically, the coarse sand is river sand, the stone is river gravel or waste rock, and the admixture is a water reducing agent. The beneficial effects of the invention lie in that: the invention provides a method for preparation of high-strength concrete from copper tailings, specifically copper tailing sand is employed to replace part of or all natural sand, the prepared concrete has indexes superior to natural sand concrete, good workability and fluidity, and no water segregation phenomenon,realizes graded comprehensive utilization of tailing resources, alleviates the environmental pollution brought about by tailing storage and stacking, reduces wasting of resources and environmental pollution, and has significant social and economic benefits.
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Description

technical field

[0001] The invention belongs to the field of comprehensive utilization of solid waste resources and the field of building materials, and in particular relates to concrete containing copper tailings and a preparation method thereof. Background technique

[0002] Tailings have become the bulk solid waste with the largest output and the lowest comprehensive utilization rate in my country. The accumulation of a large number of tailings will not only pollute the air and water, but also cause safety problems, especially copper tailings, which have considerable reserves. This has aroused the great attention of the country and society. It is of great significance to the country and society to study the ways of effectively utilizing tailings and improve the utilization rate.

[0003] Sand and gravel aggregate is the most basic and the largest amount of raw material resources for engineering construction. In the existing technology, natural sand is generally used to pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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