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Concrete with excellent flexural property and tensile property and preparation method thereof

A concrete and tensile technology, which is applied in the field of concrete, can solve the problems that the flexural and tensile properties cannot meet the requirements and the performance cannot meet the actual needs.

Inactive Publication Date: 2016-12-14
蚌埠市方阵商品混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of concrete in the prior art still cannot meet the actual needs after adding fibers, and its flexural and tensile properties cannot meet the requirements. Therefore, it is urgent to design a concrete with excellent flexural and tensile properties to solve the problems in the prior art. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A concrete with excellent flexural and tensile properties proposed by the present invention is composed of A component, B component and water, wherein the mass ratio between each component is A component: B component: water = 3: 35:4.5.

[0022] The formula of the A component in terms of parts by mass is: 45 parts of polyphenol glycidyl ether epoxy resin, 25 parts of modified polypropylene fiber, 5 parts of acrylonitrile-butadiene-styrene copolymer, polydimethylene 1 part of siloxane, 10 parts of aminoethylpiperazine, 3.5 parts of resorcinol, 2 parts of silane coupling agent KH-560; wherein, the modified polypropylene fiber is prepared according to the following process: 3.5 parts by weight 1 part of polypropylene fiber, 2 parts of water, 3 parts of xylene, and 4.5 parts of acrylic acid were added to a three-necked flask, protected by nitrogen, heated to 50°C, and after swelling for 80 minutes, the temperature was rapidly raised to 100°C, and 4 parts of benzoyl peroxide...

Embodiment 2

[0029] A concrete with excellent flexural and tensile properties proposed by the present invention is composed of A component, B component and water, wherein the mass ratio between each component is A component: B component: water = 2: 50:3.

[0030] The formula of the A component in parts by mass is: 35 parts of aliphatic glycidyl ether epoxy resin, 30 parts of modified polypropylene fiber, 2 parts of acrylonitrile-butadiene-styrene copolymer, polydimethyl 1.5 parts of siloxane, 5 parts of aminoethylpiperazine, 5 parts of resorcinol, 1 part of silane coupling agent KH-560; wherein, the modified polypropylene fiber is prepared according to the following process: 2 parts by weight Add polypropylene fiber, 3 parts of water, 2 parts of xylene, and 6 parts of acrylic acid into a three-necked flask, protect it with nitrogen, heat to 45°C, swell for 90 minutes, then rapidly raise the temperature to 95°C, add 5 parts of benzoyl peroxide, and react Cool for 85 minutes, filter with su...

Embodiment 3

[0037] A kind of concrete with excellent flexural and tensile properties proposed by the present invention is composed of A component, B component and water, wherein the mass ratio between each component is A component: B component: water=4: 20:6.

[0038]The formula of the A component in parts by mass is: 55 parts of glycidyl ester type epoxy resin, 20 parts of modified polypropylene fiber, 8 parts of acrylonitrile-butadiene-styrene copolymer, polydimethylsiloxane 0.5 parts of oxane, 15 parts of aminoethylpiperazine, 2 parts of resorcinol, 3 parts of silane coupling agent KH-560; wherein, the modified polypropylene fiber is prepared according to the following process: 5 parts by weight of poly Add acrylic fiber, 1 part of water, 4 parts of xylene, and 3 parts of acrylic acid into a three-necked flask, protect it with nitrogen, heat to 55°C, swell for 70 minutes, then rapidly heat up to 105°C, add 3 parts of benzoyl peroxide, and react for 95 minutes , cooled, filtered with s...

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PUM

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Abstract

The invention discloses concrete with the excellent flexural property and tensile property. The concrete is prepared from a component A, a component B and water, wherein the mass ratio of the component A to the component B to water is (2-4):(20-50):(3-6); the component A is prepared from epoxy resin, modified polypropylene fibers, acrylonitrile-butadiene-styrene copolymer, polydimethylsiloxane, N-aminoethylpiperazine, resorcinol and a silane coupling agent KH-560; the component B is prepared from ordinary Portland 42.5 cement, fly ash, medium sand, scoria, ceramsite, expanded perlite, mineral slag, kaolin and additives. The invention further provides a preparation method of the concrete with the excellent flexural property and tensile property. The prepared concrete has the excellent flexural property and tensile property.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a concrete with excellent flexural and tensile properties and a preparation method thereof. Background technique [0002] Concrete usually uses cement as the cementitious material, sand and stone as aggregates, mixed with water (may contain admixtures and admixtures) in a certain proportion, and the cement concrete obtained by mixing is also called ordinary concrete. , low energy consumption, good durability, cheap price, and can be combined with steel to make various load-bearing structures, it is the most widely used building material in contemporary times and plays a very important role in the development of human society. [0003] The main method at present is to add fibers to the concrete. The performance of concrete in the prior art still cannot meet the actual needs after adding fibers, and its flexural and tensile properties cannot meet the requirements. Therefore, it i...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B22/002C04B24/281C04B16/0633C04B24/2688C04B24/42C04B24/124C04B24/02C04B18/08C04B14/06C04B14/14C04B18/025C04B14/185C04B18/141C04B14/106C04B2103/0068
Inventor 朱宏庆
Owner 蚌埠市方阵商品混凝土有限公司
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