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Premixed high-performance concrete mixture and preparation method thereof

A high-performance, concrete technology, used in the field of concrete, can solve the problems of inability to reinforce concrete and single performance, and achieve the effects of improving impermeability, improving workability, and reducing dosage.

Inactive Publication Date: 2019-07-23
湖北恒利建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When preparing concrete, it is necessary to add admixtures. Concrete admixtures are used to improve concrete performance, save water, adjust the strength level of concrete, and add natural or artificial powders that can improve concrete performance during concrete mixing. Minerals, the existing admixtures have a single performance, and cannot enhance multiple aspects of concrete at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of ready-mixed high-performance concrete admixture, its raw material formula by weight is as follows: 20 parts of fly ash, 10 parts of zeolite powder, 1 part of antifreeze, 3 parts of expansion agent, 2 parts of water reducer, 4 parts of stabilizer share.

[0024] The expansion agent is composed of alumite expansion agent, calcium sulfoaluminate expansion agent, calcium oxide expansion agent, and iron filings expansion agent, wherein the weight of alumite expansion agent, calcium sulfoaluminate expansion agent, calcium oxide expansion agent, and iron filings expansion agent The ratio is 4:2:1:5.

[0025] The antifreeze is composed of sodium nitrate, carbonate, calcium chloride, calcium nitrite, urea, and ethylene glycol, and the weight ratio of sodium nitrate, carbonate, calcium chloride, calcium nitrite, urea, and ethylene glycol is 8 :3:6:1:2:20.

[0026] The present invention also provides a preparation method of ready-mixed high performance concrete admixtu...

Embodiment 2

[0032] A ready-mixed high-performance concrete admixture, the formula of its raw materials by weight is as follows: 22 parts of fly ash, 11 parts of zeolite powder, 1.5 parts of antifreeze, 3.5 parts of expansion agent, 2.5 parts of water reducer, 4.5 parts of stabilizer share.

[0033] The expansion agent is composed of alumite expansion agent, calcium sulfoaluminate expansion agent, calcium oxide expansion agent, and iron filings expansion agent, wherein the weight of alumite expansion agent, calcium sulfoaluminate expansion agent, calcium oxide expansion agent, and iron filings expansion agent The ratio is 4:2:1:5.

[0034] The antifreeze is composed of sodium nitrate, carbonate, calcium chloride, calcium nitrite, urea, and ethylene glycol, and the weight ratio of sodium nitrate, carbonate, calcium chloride, calcium nitrite, urea, and ethylene glycol is 8 :3:6:1:2:20.

[0035] The present invention also provides a preparation method of ready-mixed high performance concret...

Embodiment 3

[0041] A kind of ready-mixed high-performance concrete admixture, its raw material formula by weight is as follows: 25 parts of fly ash, 13 parts of zeolite powder, 1.75 parts of antifreeze, 4.5 parts of expansion agent, 3 parts of water reducer, 5 parts of stabilizer share.

[0042] The expansion agent is composed of alumite expansion agent, calcium sulfoaluminate expansion agent, calcium oxide expansion agent, and iron filings expansion agent, wherein the weight of alumite expansion agent, calcium sulfoaluminate expansion agent, calcium oxide expansion agent, and iron filings expansion agent The ratio is 4:2:1:5.

[0043] The antifreeze is composed of sodium nitrate, carbonate, calcium chloride, calcium nitrite, urea, and ethylene glycol, and the weight ratio of sodium nitrate, carbonate, calcium chloride, calcium nitrite, urea, and ethylene glycol is 8 :3:6:1:2:20.

[0044] The present invention also provides a preparation method of ready-mixed high performance concrete a...

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PUM

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Abstract

The invention relates to the technical field of concrete and especially relates to a premixed high-performance concrete mixture. The premixed high-performance concrete mixture comprises the followingraw materials in parts by weight: 20-30 parts of coal ash, 10-15 parts of zeolite powder, 1-3 parts of anti-freezing agent, 3-6 parts of swelling agent, 2-4 parts of water reducer and 4-6 parts of stabilizer. The invention also provides a preparation method for the premixed high-performance concrete mixture. The premixed high-performance concrete mixture has the characteristics of capabilities ofimproving the workability, pumpability and plastering property of the concrete mixture, improving the pore structure of concrete, promoting the anti-permeability, freezing resistance and corrosion resistance of concrete, restraining alkali-aggregate reaction, reducing unit water use and improving liquidity of the concrete mixture.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a ready-mixed high-performance concrete admixture and a preparation method thereof. Background technique [0002] Concrete, referred to as "concrete": refers to the collective name of engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally speaking, the term concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate, mixed with water in a certain proportion, and then stirred, formed and maintained. It is also called ordinary concrete. It is widely used in civil Engineering. Concrete has the characteristics of abundant raw materials, low price and simple production process. When preparing concrete, it is necessary to add admixtures. Concrete admixtures are used to improve concrete performance, save water, adjust the strength level of concrete, and add na...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12
CPCC04B40/0039C04B2103/601C04B18/08C04B14/047C04B2103/302C04B22/142C04B22/064C04B22/04C04B2103/0068C04B22/085C04B22/10C04B22/124C04B24/126C04B24/02
Inventor 黄文明仝浩胜魏运超魏运权胡从文陈明中
Owner 湖北恒利建材科技有限公司