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Better-durability concrete

A concrete and durability technology, applied in the field of concrete, can solve the problems of limited natural river sand sources and less durability research, and achieve the effects of reduced maintenance work, excellent carbonation performance, and excellent corrosion resistance

Inactive Publication Date: 2016-11-16
安徽金丰新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Concrete is an essential and important material in building construction. It is a general term for engineering composite materials that cement aggregates into a whole by cementitious materials. Ordinary concrete refers to cement as a gel material, sand and stone as aggregates; and Water is mixed in a certain proportion, and it is obtained by mixing, molding, and curing. Due to the limited source of natural river sand, artificial sand or other materials need to be used. Usually, only concrete that basically meets the standards can be made, and the inspection is usually a short-term inspection. In the practical application of concrete, it is necessary to consider the carbonation of concrete and the corrosion of steel bars. At present, there are many studies on the bond between steel bars and concrete in general environments, but there are few studies on its durability.

Method used

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Effect test

Embodiment 1

[0013] A kind of concrete with better durability is made of the following raw materials in parts by weight: 27 parts of cement, 15 parts of fly ash, 3 parts of modified ultrafine quartz powder, 15 parts of illite, 6 parts of tire powder, chlorite 3 parts, 14 parts of coal gangue, 4 parts of alkalized rice husk, 2 parts of polycarbonate resin, 0.3 part of tristyrylphenol polyoxyethylene ether, 0.3 part of chlorinated paraffin, 0.4 part of polyisobutylene, 10 parts of water;

[0014] Wherein, the modification method of the ultrafine quartz powder is: take the ultrafine quartz powder and soak it in calcium sulfate with a mass concentration of 12-15% for 40-60 minutes, rinse it with deionized water, and then use a mass concentration of 10-15% Soak in 12% hydrochloric acid solution for 1-1.5 hours, rinse with deionized water until neutral, dry until the moisture is lower than 15%, add polyisobutylene equivalent to 1-2% by weight, 2-3% dioxane Iron and 2-3% chlorinated paraffin, sti...

Embodiment 2

[0019] A kind of concrete with good durability is made of the following raw materials in parts by weight: 30 parts of cement, 12 parts of fly ash, 4 parts of modified ultrafine quartz powder, 14 parts of illite, 4 parts of tire powder, chlorite 4 parts, 16 parts of coal gangue, 5 parts of alkalized rice husk, 2 parts of polycarbonate resin, 0.2 part of tristyrylphenol polyoxyethylene ether, 0.3 part of chlorinated paraffin, 0.5 part of polyisobutylene, 8 parts of water;

[0020] Wherein, the modification method of the ultrafine quartz powder is: take the ultrafine quartz powder and soak it in calcium sulfate with a mass concentration of 12-15% for 40-60 minutes, rinse it with deionized water, and then use a mass concentration of 10-15% Soak in 12% hydrochloric acid solution for 1-1.5 hours, rinse with deionized water until neutral, dry until the moisture is lower than 15%, add polyisobutylene equivalent to 1-2% by weight, 2-3% dioxane Iron and 2-3% chlorinated paraffin, stirre...

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Abstract

The invention discloses better-durability concrete prepared from the following raw materials: cement, fly ash, modified superfine quartz powder, illite, tire powder, chlorite, coal gangue, alkalized rice husks, polycarbonate resin, triphenethyl phenol polyoxyethylene ether, chlorinated paraffin, polyisobutylene, and water. Compared with the prior art, the better-durability concrete has the following advantages: with combined action of the modified superfine quartz powder and the alkalized rice husks, the binding capacity of the concrete is strengthened, mixing and curing are performed under specified conditions, the reactions among the raw materials are full, surface or internal cracks caused due to temperature, dry shrinkage and other non-structural reasons can be effectively prevented, and the concrete has the advantages of relatively good safety performance, relatively high tensile strength, and excellent impermeability, frost resistance, corrosion resistance and carbonization performance, can maintain higher compressive strength and appearance integrity for a long term, and reduces implementation of maintenance work.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to concrete with good durability. Background technique [0002] Concrete is an essential and important material in building construction. It is a general term for engineering composite materials that cement aggregates into a whole by cementitious materials. Ordinary concrete refers to cement as a gel material, sand and stone as aggregates; and Water is mixed in a certain proportion, and it is obtained by mixing, molding, and curing. Due to the limited source of natural river sand, artificial sand or other materials need to be used. Usually, only concrete that basically meets the standards can be made, and the inspection is usually a short-term inspection. In the practical application of concrete, the carbonation of concrete and the corrosion of steel bars need to be considered. At present, there are many studies on the bond between steel bars and concrete in g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/04C04B14/06C04B14/10C04B18/08C04B18/22C04B18/24C04B24/08C04B24/26C04B24/28C04B24/32
CPCC04B14/062C04B28/04C04B20/1055C04B18/08C04B14/10C04B18/22C04B14/04C04B18/24C04B24/286C04B24/32C04B24/08C04B24/2611Y02W30/91
Inventor 周武
Owner 安徽金丰新型建材有限公司
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