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High-strength concrete and preparing method thereof

A concrete and high-strength technology, applied in the field of concrete, can solve the problems of shortened service life, high brittleness, and easy cracking, and achieve the effect of improving construction efficiency, low brittleness, and not easy to crack

Active Publication Date: 2017-11-17
SHOUGANG SHUICHENG IRON & STEEL GRP SAIDE CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The preparation of concrete in the prior art is only prepared by mixing cement, sand, stones and water. The advantages of such concrete are that it is easy to obtain materials, easy to shape, low in price, and can be combined with steel to make various load-bearing components. The fatal weakness is low strength, high brittleness, easy cracking, and poor toughness, thereby reducing the bearing capacity of the concrete structure and shortening the service life, becoming a hidden danger of various disasters.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of high-strength concrete, including raw materials in the following weight ratio: 180kg of pottery sand, 350kg of ceramsite, 50kg of water glass, 22kg of vitrified microspheres, 8kg of sodium sulfate, 400kg of gravel, 300kg of cement, 27kg of calcium oxide, dimethyl 70kg of diallyl ammonium chloride, 7kg of sodium hydroxide, 2.5kg of hexanediol diacrylate, 3kg of trimethylolpropane triacrylate, 8kg of polyvinyl butyral and 300kg of water; Portland cement of 42.5; the particle size of the gravel is 10mm; the bulk density of the ceramsite is 380kg / m 3 , the average particle size of the ceramsite is 8mm; the bulk density of the ceramsite is 600kg / m 3 , the average particle size of the pottery sand is 0.5; the bulk density of the vitrified microbeads is 100kg / m 3 , the surface vitrified closed cell rate is greater than 80%, and the average particle size of vitrified microbeads is 0.5mm.

[0022] The preparation method of described high-strength concrete may further...

Embodiment 2

[0027] A high-strength concrete, including the following raw materials in weight ratio: 150kg of pottery sand, 300kg of ceramsite, 40kg of water glass, 18kg of vitrified microspheres, 5kg of sodium sulfate, 300kg of gravel, 250kg of cement, 25kg of calcium oxide, dimethyl 60 kg of diallyl ammonium chloride, 5 kg of sodium hydroxide, 1 kg of hexanediol diacrylate, 2 kg of trimethylolpropane triacrylate, 7 kg of polyvinyl butyral and 200 kg of water. The cement is Portland cement with a label of 42.5; the particle size of the gravel is 20mm. The bulk density of the ceramsite is 420kg / m 3 , the average particle size of the ceramsite is 18mm. The bulk density of the pottery sand is 650kg / m 3 , the average particle size of the pottery sand is 3mm. The bulk density of the vitrified microbeads is 110kg / m 3 , the surface vitrified closed cell rate is greater than 80%, and the average particle size of vitrified microbeads is 4mm.

[0028] The preparation method of described high-s...

Embodiment 3

[0033] A high-strength concrete, including the following raw materials in weight ratio: 200kg of pottery sand, 400kg of ceramsite, 60kg of water glass, 25kg of vitrified microspheres, 10kg of sodium sulfate, 500kg of gravel, 400kg of cement, 30kg of calcium oxide, dimethyl 80 kg of diallyl ammonium chloride, 10 kg of sodium hydroxide, 4 kg of hexanediol diacrylate, 4 kg of trimethylolpropane triacrylate, 9 kg of polyvinyl butyral and 400 kg of water. The cement is Portland cement with a label of 42.5. The particle size of the gravel is 20mm. The bulk density of the ceramsite is 420kg / m 3 , the average particle size of the ceramsite is 18mm. The bulk density of the pottery sand is 650kg / m 3 , the average particle size of the pottery sand is 3mm. The bulk density of the vitrified microbeads is 110kg / m 3 , the surface vitrified closed cell rate is greater than 80%, and the average particle size of vitrified microbeads is 4mm.

[0034] The preparation method of described hig...

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Abstract

The invention discloses high-strength concrete. The high-strength concrete is prepared from, by weight, 150-200 parts of pottery sand, 300-400 parts of ceramsites, 40-60 parts of water glass, 18-25 parts of vitrified micro beads, 5-10 parts of sodium sulfate, 300-500 parts of gravel, 250-400 parts of cement, 25-30 parts of calcium oxide, 60-80 parts of dimethyl diallyl ammonium chloride, 5-10 parts of sodium hydroxide, 1-4 parts of hexanediol diacrylate, 2-4 parts of trimethylolpropane triacrylate, 7-9 parts of polyvinyl alcohol poly-butyraldehyde and 200-400 parts of water. According to the high-strength concrete, the dry apparent density can be reduced to 1,572 kg / m<3>, the strength of concrete is 60 Mpa to 70 Mpa, the friability is small, and cracking is not prone to occurrence; the high-strength concrete has the certain keeping performance, the construction requirements are further met, and the construction efficiency is greatly improved. The high-strength concrete is suitable for the technical field of concrete.

Description

technical field [0001] The invention relates to concrete technology, in particular to a high-strength concrete and a preparation method thereof. Background technique [0002] The preparation of concrete in the prior art is only prepared by mixing cement, sand, stones and water. The advantages of such concrete are that it is easy to obtain materials, easy to shape, low in price, and can be combined with steel to make various load-bearing components. The Achilles heel is low strength, high brittleness, easy cracking, and poor toughness, which will reduce the bearing capacity of the concrete structure, shorten the service life, and become a hidden danger of various disasters. [0003] In order to solve the above problems, the inventor has worked out a high-strength concrete and a preparation method thereof through trial and error. Contents of the invention [0004] In order to make up for the deficiencies of the prior art, the invention provides a high-strength concrete and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/24C04B18/02
Inventor 齐晶吴崇双蔡菲田江海李军兰
Owner SHOUGANG SHUICHENG IRON & STEEL GRP SAIDE CONSTR CO LTD