High-strength frost-resistant concrete

A concrete and high-strength technology, applied in the field of concrete, can solve the problems of complex service environment, concrete frost resistance, and concrete strength that cannot meet social requirements, and achieve high strength, good frost resistance, and use long life effect

Inactive Publication Date: 2015-03-04
WUWEI HENGJI COMML CONCRETE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-strength concrete has the characteristics of high strength, high fluidity, high early strength, good durability, light weight, and remarkable material-saving effect. The work of research and promotion of high-strength concrete in foreign advanced countries has been carried out for decades, and my country has developed high-strength concrete. Concrete started late, and the current strength of concrete cannot meet the requirements of society. In addition, the service environment of concrete structures is often very complicated, and construction in winter is inevitable. The current frost resistance of concrete cannot meet the requirements of society. Need for further research and development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The high-strength antifreeze concrete of the present invention, its raw material comprises the following components by weight: 150 parts of ordinary Portland cement, 450 parts of sea sand, 400 parts of gravel, 120 parts of water, 20 parts of silica fume, 50 parts of natural zeolite 10 parts of limestone powder, 5 parts of polyethylene oxide resin, 5 parts of polypropylene short fiber, 15 parts of polyvinyl alcohol fiber, 0.5 part of glycerin, 1.3 parts of dipropyl glycol, 5 parts of talcum powder, rust inhibitor 1 part of antifreeze, 0.2 part of sodium benzoate, 0.5 part of polyacrylamide, 0.5 part of hydroxyethyl cellulose ether, 8 parts of antifreeze, 3 parts of water reducing agent;

[0018] Wherein, the rust inhibitor consists of 0.5 parts by weight of sodium molybdate, 2 parts by weight of diethylenetriamine, 0.15 parts by weight of propylene thiourea, 0.2 parts by weight of 1,4-butynediol, 15 parts by weight of The ethanol and the water stirring dissolving of 50 w...

Embodiment 2

[0020] The high-strength antifreeze concrete of the present invention, its raw material comprises the following components by weight: 300 parts of ordinary Portland cement, 200 parts of sea sand, 700 parts of gravel, 80 parts of water, 60 parts of silica fume, 20 parts of natural zeolite 20 parts of limestone powder, 2 parts of polyethylene oxide resin, 20 parts of polypropylene short fiber, 3 parts of polyvinyl alcohol fiber, 1.2 parts of glycerin, 0.5 parts of dipropyl glycol, 10 parts of talcum powder, rust inhibitor 0.3 parts of antifreeze, 0.5 parts of sodium benzoate, 0.2 parts of polyacrylamide, 1.2 parts of hydroxyethyl cellulose ether, 5 parts of antifreeze, and 6 parts of water reducing agent;

[0021] Wherein, the content of silicon dioxide in the silicon powder is 92wt%;

[0022] The rust inhibitor is composed of 0.3 parts by weight of sodium molybdate, 4 parts by weight of diethylenetriamine, 0.1 parts by weight of propylene thiourea, 0.5 parts by weight of 1,4-bu...

Embodiment 3

[0024] The high-strength antifreeze concrete of the present invention, its raw material comprises the following components by weight: 280 parts of ordinary Portland cement, 300 parts of sea sand, 467 parts of gravel, 92.6 parts of water, 24.6 parts of silica fume, 38 parts of natural zeolite 17.8 parts of limestone powder, 4.6 parts of polyethylene oxide resin, 10.6 parts of polypropylene short fiber, 11.3 parts of polyvinyl alcohol fiber, 1.1 parts of glycerin, 0.94 parts of dipropyl glycol, 7.86 parts of talcum powder, rust inhibitor 0.67 parts of antifreeze, 0.38 parts of sodium benzoate, 0.46 parts of polyacrylamide, 0.94 parts of hydroxyethyl cellulose ether, 6.9 parts of antifreeze, and 5.86 parts of water reducer;

[0025] Wherein, the content of silicon dioxide in the silicon powder is 95wt%;

[0026] The rust inhibitor is composed of 0.35 parts by weight of sodium molybdate, 2.7 parts by weight of diethylenetriamine, 0.12 parts by weight of propylene thiourea, 0.29 pa...

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Abstract

The invention discloses high-strength frost-resistant concrete which comprises the following components in parts by weight: 150-300 parts of ordinary Portland cement, 200-450 parts of sea sand, 400-700 parts of gravel, 80-120 parts of water, 20-60 parts of silicon powder, 20-50 parts of natural zeolite, 10-20 parts of limestone powder, 2-5 parts of polyoxyethylene resin, 5-20 parts of polypropylene staple fiber, 3-15 parts of polyvinyl alcohol fiber, 0.5-1.2 parts of glycerol, 0.5-1.3 parts of dipropyl glycol, 5-10 parts of talcum powder, 0.3-1 part of corrosion inhibitor, 0.2-0.5 part of sodium benzoate, 0.2-0.5 part of polyacrylamide, 0.5-1.2 parts of hydroxyethyl cellulose ether, 5-8 parts of antifreezing agent and 3-6 parts of water reducer. The high-strength frost-resistant concrete disclosed by the invention has high strength, favorable frost resistance and long service life.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to high-strength frost-resistant concrete. Background technique [0002] Concrete has also become the material of choice for roads, dams, and bridges, as industrial development and urbanization accelerate. High-strength concrete has the characteristics of high strength, high fluidity, high early strength, good durability, light weight, and remarkable material-saving effect. The work of research and promotion of high-strength concrete in foreign advanced countries has been carried out for decades, and my country has developed high-strength concrete. Concrete started late, and the current strength of concrete cannot meet the requirements of society. In addition, the service environment of concrete structures is often very complicated, and construction in winter is inevitable. The current frost resistance of concrete cannot meet the requirements of society. Further research and develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
Inventor 倪友
Owner WUWEI HENGJI COMML CONCRETE
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