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High-activity stone powder-based concrete admixture

A concrete admixture and high-activity technology, which is applied in the field of concrete preparation, can solve the problems of longer concrete preparation time, low concrete preparation efficiency, and lower concrete strength, and achieve the effects of saving preparation time, good mixing effect, and improving strength

Pending Publication Date: 2022-02-11
武安市浩泽环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a high-activity stone powder-based concrete admixture, which can effectively solve the above-mentioned background technology. After adding the admixture to the concrete, the preparation time of the concrete becomes longer, and a certain amount of moisture will be absorbed in a humid environment. , leading to the reduction of the strength of the prepared concrete and the low efficiency of concrete preparation

Method used

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  • High-activity stone powder-based concrete admixture

Examples

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Comparison scheme
Effect test

Embodiment 1

[0049] A highly active stone powder-based concrete admixture includes mixture A, mixture B and mixture C. In parts by mass, mixture A includes 70 parts of water reducer, 6 parts of activated clay powder, and 6 parts of surfactant; mixture B includes 4 parts of early strength agent and 5 parts of thickener; mixture C includes 7 parts of cosolvent and 1.9 Parts of defoamer.

[0050] Among them, the water reducing agent is composed of natural stone powder ore base powder, naphthalene sulfonate formaldehyde condensate powder and carbonyl pyraldehyde liquid with a mass ratio of 5:0.5:1; the main component of activated clay is attapulgite clay; the surfactant is mass The mixture of calcium metal soap and organic amine soap with a ratio of 3:1; the thickener is a mixture of polyacrylamide and epoxy resin with a mass ratio of 1.5:1; the early strength agent is a triethanolamine liquid with a mass ratio of 2:1 It is a mixture of calcium formate and crystal powder; the co-solvent is ce...

Embodiment 2

[0054] A highly active stone powder-based concrete admixture includes mixture A, mixture B and mixture C. In terms of parts by mass, mixture A includes 75 parts of water reducer, 4 parts of activated clay powder, and 4 parts of surfactant; mixture B includes 7 parts of early strength agent and 6 parts of thickener; mixture C includes 2 parts of cosolvent and 1.5 parts of Parts of defoamer.

[0055] Among them, the water reducer is composed of natural stone powder ore base powder, naphthalene sulfonate formaldehyde condensate powder and carbonyl pyraldehyde liquid with a mass ratio of 4:0.8:1; the main component of activated clay is attapulgite clay; the surfactant is mass The mixture of calcium metal soap and organic amine soap with a ratio of 4:1; the thickener is a mixture of polyacrylamide and epoxy resin with a mass ratio of 1.2:1; the early strength agent is a triethanolamine liquid with a mass ratio of 1.5:1 A mixture of calcium formate and crystalline powder; the cosol...

Embodiment 3

[0059] A highly active stone powder-based concrete admixture includes mixture A, mixture B and mixture C. In terms of parts by mass, mixture A includes 80 parts of water reducer, 2 parts of montmorillonite powder, and 2 parts of surfactant; mixture B includes 3 parts of early strength agent and 4 parts of thickener; mixture C includes 8 parts of cosolvent and 0.8 parts of defoamer.

[0060] Among them, the water reducing agent is composed of natural stone powder ore base powder, naphthalenesulfonate formaldehyde condensate powder and carbonyl pyraldehyde liquid with a mass ratio of 3:1:1; the chemical formula of montmorillonite is Al 2 o 3 4SiO2 2 ·nH 2 O; the surfactant is a mixture of calcium metal soap and organic amine soap with a mass ratio of 5:1; the thickener is a mixture of polyacrylamide and epoxy resin with a mass ratio of 1.1:1; the early strength agent is a mass ratio of 1.1:1 mixture of triethanolamine liquid and crystalline powdered calcium formate; cosolven...

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Abstract

The invention discloses a high-activity stone powder-based concrete admixture which comprises a mixture A, a mixture B and a mixture C. The mixture A comprises a water reducing agent, activated clay powder or montmorillonite powder and a surfactant, the mixture B comprises an early strength agent and a thickening agent, and the mixture C comprises a cosolvent and a defoaming agent. Free water is reduced by utilizing the moisture absorption effect of the activated clay powder or montmorillonite powder, so that the influence of a humid environment on the humidity of the concrete mixture is reduced. The strength of the concrete is improved by adding the water reducing agent, the early strength agent and the defoaming agent, and meanwhile, by adding the components such as the surfactant, the thickening agent and the cosolvent, the fusion effect of all the components of the admixture is improved, the stirring and mixing time is shortened, the concrete is more viscous and easy to form, bubbles are reduced, and the strength is further improved.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, in particular to a highly active stone powder-based concrete admixture. Background technique [0002] Concrete admixtures are chemical substances that are added in the process of mixing concrete, accounting for less than 5% of the concrete mass, and can significantly improve the performance of concrete. With the continuous progress of science and technology, more and more concrete admixtures have been used. It is characterized by many varieties and small dosage, which has a great impact on the performance of concrete. It has the advantages of less investment, quick results, and significant technical and economic benefits. features. Admixtures can improve various properties of concrete, such as carbonation resistance, frost resistance, etc.; the effects of different admixtures are also different. Strengthening agents have no effect on improving the frost resistance of concrete. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/42
CPCC04B40/0039C04B24/226C04B24/008C04B14/02C04B14/102C04B24/121C04B24/00C04B24/2652C04B24/281C04B24/383C04B24/42C04B24/122C04B24/04
Inventor 于浩刘刚欧阳俊
Owner 武安市浩泽环保科技有限公司
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