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Jarosite slag concrete and preparation method

A technology for jarosite slag and concrete, which is applied to the field of jarosite slag concrete and its preparation, can solve the problems of large slag volume, pollute the environment, and difficulty in stacking and processing, and achieve the effects of reducing cement consumption, low cost, and simple and feasible operation.

Active Publication Date: 2018-09-28
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Alumite slag is a dangerous solid waste in the leaching solution produced in the production process of electrolytic zinc. The amount of slag is large, and it is difficult to stack and treat. Moreover, China’s electrolytic zinc smelting ranks first in the world. No matter what process is used for hydrometallurgy , will produce a large amount of leachate, which seriously pollutes the environment

Method used

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  • Jarosite slag concrete and preparation method

Examples

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Effect test

Embodiment 1

[0025] A kind of alumina slag concrete, made of the following raw materials in parts by weight: 11 parts of water, 31 parts of P.O42.5 Portland cement, 4 parts of alumina slag with a water content of 7.6%, and a water content of 0.5 104 parts of 31.5mm continuous graded gravel, 60 parts of fine aggregate with moisture content of 2.6% and fineness modulus of 2.77, and 2.5 parts of additional water.

[0026] The preparation method of above-mentioned alum slag concrete, comprises the following steps:

[0027] (1) Throwing fine aggregate, coarse aggregate, and alum slag into a mixer according to the proportion by weight and stirring until the raw materials are evenly mixed to obtain a mixed material;

[0028] (2) Take cement according to the proportion by weight and add water to the mixer at a flow rate of 10mL / min and stir until all the water is added, then add the mixture to the mixer and continue stirring for 15 minutes, then add additional water according to the proportion by ...

Embodiment 2

[0030] A kind of alumina slag concrete, made of the following raw materials in parts by weight: 15 parts of water, 16 parts of P.O42.5 Portland cement, 13 parts of alumina slag with a water content of 7.6%, and a water content of 0.5 129 parts of 5mm continuous graded gravel, 60 parts of fine aggregate with moisture content of 2.6% and fineness modulus of 2.77, and additional water consumption of 2.2 parts.

[0031] The preparation method of above-mentioned alum slag concrete, comprises the following steps:

[0032] (1) Throwing fine aggregate, coarse aggregate, and alum slag into a mixer according to the proportion by weight and stirring until the raw materials are evenly mixed to obtain a mixed material;

[0033] (2) Take cement according to the proportion by weight and add water to the mixer at a flow rate of 10mL / min and stir until all the water is added, then add the mixture to the mixer and continue stirring for 15 minutes, then add additional water according to the prop...

Embodiment 3

[0035] A kind of alumina slag concrete, made of the following raw materials in parts by weight: 12 parts of water, 19 parts of P.O42.5 Portland cement, 6 parts of alumina slag with a water content of 7.6%, and a water content of 0.5 110 parts of 31.5mm continuous graded gravel, 70 parts of fine aggregate with moisture content of 2.6% and fineness modulus of 2.77, and 2 parts of additional water.

[0036] The preparation method of above-mentioned alum slag concrete, comprises the following steps:

[0037] (1) Throwing fine aggregate, coarse aggregate, and alum slag into a mixer according to the proportion by weight and stirring until the raw materials are evenly mixed to obtain a mixed material;

[0038] (2) Take cement according to the proportion by weight and add water to the mixer at a flow rate of 10mL / min and stir until all the water is added, then add the mixture to the mixer and continue stirring for 18 minutes, then add additional water according to the proportion by we...

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Abstract

The invention provides jarosite slag concrete and a preparation method, and relates to the technical field of building materials. The method comprises the steps that jarosite slag containing oxides such as CaO, SiO2 Al2O3 is similar to concrete in chemical component so that the jarosite slag can be used for partially replacing cement in the concrete, the jarosite slag, ordinary Portland cement, fine aggregate, coarse aggregate and water are used for preparing different types of concrete, 11-15 parts by weight of water, 16-31 parts by weight of cement, 4-13 parts by weight of jarosite slag, 104-129 pats by weight of coarse aggregate and 60-74 parts by weight of fine aggregate are mixed, and 0-2.5 parts by weight of water is added; generally, a zinc smelting plant can pile up a large amountof jarosite slag, the piling up processing difficulty is great, and meanwhile the environment is polluted. The jarosite slag can be used for preparing concrete products with different strength grades,and engineering application is wide.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an alum slag concrete and a preparation method. Background technique [0002] With the continuous advancement of my country's modernization process and the continuous development of the construction industry, concrete has become the most widely used material in construction projects, and the consumption of construction materials is huge. Cement is one of the important raw materials in building materials. Since the 1950s and 1960s, industrial waste residues have been used to prepare compound cement or partially replace cement, reduce the amount of cement, and solve the contradiction between supply and demand of building materials. In addition to slag, fly ash, coal gangue, carbide slag, steel slag, and flue gas desulfurization gypsum have entered the field of cement production one after another. [0003] Alumite slag is a dangerous solid waste in the leaching solution ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B14/02C04B14/06C04B18/144
Inventor 于峰宋洁孔正义武萍江楠王士龙方圆
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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