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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

Inactive Publication Date: 2019-11-26
中条山有色金属集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a concrete containing copper tailings and its preparation method in order to solve the technical problems of environmental pollution, waste of resources and depletion of natural sand resources caused by the accumulation of copper tailings

Method used

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  • Concrete containing copper tailings and preparation method thereof
  • Concrete containing copper tailings and preparation method thereof
  • Concrete containing copper tailings and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of C15 concrete that contains copper tailings in the present embodiment is made up of the raw material of following weight:

[0022]

[0023] The coarse sand is river sand with a fineness modulus of 3.7-3.1.

[0024] The stones are river pebbles or waste rocks, and the stones comply with the Standards for Quality and Inspection Methods of Sand and Stones for Ordinary Concrete (JGJ52-2006).

[0025] The admixture is XLJ-2 type polycarboxylate high-performance retarding superplasticizer (produced by Shanxi Xinlongji Building Materials Co., Ltd.).

[0026] The water is a water source that meets the "Concrete Mixing Water Standard" (JGJ63-89).

[0027] The cement is general purpose cement. Such as Portland cement, ordinary Portland cement, slag Portland cement, pozzolanic Portland cement and fly ash Portland cement.

[0028] The method for preparing the above-mentioned C15 concrete containing copper tailings comprises the following steps:

[0029] The first st...

Embodiment 2

[0038] A kind of C40 concrete that contains copper tailings in the present embodiment is made up of the raw material of following weight:

[0039]

[0040] The coarse sand is river sand with a fineness modulus of 3.7-3.1.

[0041] The stones are river pebbles or waste rocks, and the stones comply with the Standards for Quality and Inspection Methods of Sand and Stones for Ordinary Concrete (JGJ52-2006).

[0042] The admixture is XLJ-2 type polycarboxylate high-performance retarding superplasticizer (produced by Shanxi Xinlongji Building Materials Co., Ltd.).

[0043] The water is a water source that meets the "Concrete Mixing Water Standard" (JGJ63-89).

[0044] The cement is general purpose cement. Such as Portland cement, ordinary Portland cement, slag Portland cement, pozzolanic Portland cement and fly ash Portland cement.

[0045] The method for preparing the above-mentioned C40 concrete containing copper tailings comprises the following steps:

[0046] The first st...

Embodiment 3

[0055] A kind of C40 concrete that contains copper tailings in the present embodiment is made up of the raw material of following weight:

[0056]

[0057] The coarse sand is river sand with a fineness modulus of 3.7-3.1. The stones are river pebbles or waste rocks, and the stones comply with the Standards for Quality and Inspection Methods of Sand and Stones for Ordinary Concrete (JGJ52-2006).

[0058] The admixture is XLJ-2 type polycarboxylate high-performance retarding superplasticizer (produced by Shanxi Xinlongji Building Materials Co., Ltd.).

[0059] The water is a water source that meets the "Concrete Mixing Water Standard" (JGJ63-89).

[0060] The cement is general purpose cement. Such as Portland cement, ordinary Portland cement, slag Portland cement, pozzolanic Portland cement and fly ash Portland cement.

[0061] The method for preparing the above-mentioned C40 concrete containing copper tailings comprises the following steps:

[0062] The first step, prepa...

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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.

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

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Application Information

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IPC IPC(8): C04B28/04C04B28/08C04B28/02C04B18/12
CPCC04B28/021C04B28/04C04B28/08C04B18/12C04B14/068C04B2103/302Y02W30/91
Inventor 刘广耀许新强郭双龙吴锁全刘巨有王志勇曹桂萍许红金陶典枝熊立波吉星陈永平
Owner 中条山有色金属集团有限公司
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