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Solid waste-based composite lithium slag ultra-fine admixture as well as preparation method and application thereof

An admixture and complex lithium technology, applied in grain processing, cement production, etc., can solve the problems of inefficiency, improper matching treatment, low utilization rate of solid waste-based resources, etc., to enhance frost resistance and weather resistance, The effect of reducing porosity and improving mechanical properties

Pending Publication Date: 2022-04-12
安徽禄弘新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Based on the problems existing in the above-mentioned prior art, the present invention aims to provide a solid waste-based composite lithium slag ultrafine admixture and its preparation method to solve the problem of existing solid waste such as lithium slag, steel slag, coal gangue and fly ash. Low utilization rate of base resources, improper matching and low efficiency, etc., while reducing the amount of cement in concrete and reducing the cost of building materials

Method used

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  • Solid waste-based composite lithium slag ultra-fine admixture as well as preparation method and application thereof
  • Solid waste-based composite lithium slag ultra-fine admixture as well as preparation method and application thereof
  • Solid waste-based composite lithium slag ultra-fine admixture as well as preparation method and application thereof

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Embodiment 1

[0035] The solid waste-based composite lithium slag ultra-fine admixture of this embodiment, the raw materials include lithium slag, steel slag, coal gangue and fly ash with a mass percentage of 85%: 7%: 5%: 3%. 0.2% of the liquid activator of the total mass of cement raw materials and admixtures in the cement mortar; the liquid activator has a multi-solid waste synergistic excitation function, and the composition of each raw material by weight is:

[0036]

[0037]

[0038] The mass percentages of the main chemical components in lithium slag, steel slag, coal gangue and fly ash used in this example are shown in Tables 1 to 4.

[0039] Table 1 Lithium slag main chemical composition (wt%)

[0040]

[0041] Table 2 Steel slag main chemical composition (wt%)

[0042]

[0043] Table 3 main chemical composition of coal gangue (wt%)

[0044]

[0045] Table 4 main chemical composition of fly ash (wt%)

[0046]

[0047] The preparation method of the solid waste-ba...

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Abstract

The invention discloses a solid waste-based composite lithium slag ultrafine admixture and a preparation method and application thereof, the solid waste-based composite lithium slag ultrafine admixture comprises the following raw materials: lithium slag, steel slag, coal gangue and fly ash, and also comprises a liquid activator composed of water, polymeric polyol, triisopropanolamine, triethanolamine, calcium lignosulphonate, molasses and calcium formate. The admixture is used for replacing 8-12% of cement raw materials in cement mortar, and the 28-day strength of the cement mortar is improved by 4-6 MPa while the cement consumption is reduced.

Description

technical field [0001] The invention relates to a new type of building material, in particular to a solid waste-based composite lithium slag ultrafine admixture and a preparation method thereof. Background technique [0002] The cement industry has now become the third largest source of pollution in my country after electricity and motor vehicle exhaust emissions. The cement industry is also responsible for the smog that has plagued us in recent years, and the cement production process consumes a lot of fuel and electricity, and at the same time releases pollutants such as particles. Therefore, how to reduce the amount of cement to achieve carbon emission reduction has become a hot spot for future development. [0003] With the current rapid development of the lithium salt industry, the discharge of lithium slag has continued unabated, and most of the waste lithium slag produced has been disposed of by stacking and landfilling, which not only produces dust pollution and wat...

Claims

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Application Information

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IPC IPC(8): C04B7/24C04B7/14C04B7/153C04B28/00B02C15/00C04B111/20
CPCY02P40/10
Inventor 陈奔徐子芳马梁孙钦付
Owner 安徽禄弘新材料科技有限公司
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