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Concrete crack repair material and preparation method thereof

A technology for repairing materials and concrete, applied in the field of repairing materials for road and bridge engineering, can solve the problems of high maintenance cost, poor toughness and durability, etc.

Inactive Publication Date: 2019-11-19
安徽虹达道路桥梁工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the defects of poor toughness and durability of the concrete crack repair materials in the prior art, which lead to the need for repeated maintenance and high maintenance costs, and provide a simple preparation method, quick-setting early strength, good toughness, Durability is good, and the concrete crack repairing material that can reduce maintenance cost and preparation method thereof solve above-mentioned problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A concrete crack repair material, prepared from the following raw materials in parts by weight: 30 parts of modified cement mortar, 4 parts of filler, 5 parts of epoxy resin, 8 parts of diluent, 5 parts of plasticizer, and 6 parts of curing agent 1 part, 1 part of expansion agent, 1 part of water reducer, and the modified cement mortar is prepared from the following raw materials in parts by weight: 80 parts of cement, 160 parts of sand, 16 parts of propylene milk and 40 parts of water.

[0022] Among them, the cement is made of ordinary Portland cement not lower than 32.5R grade, and the sand is made of sieved fine sand with a fineness modulus of 1.6 and a particle size of less than 2.5mm.

[0023] Among them, the epoxy resin epoxy resin is epoxy resin E51; the filler is a mixture of alumina and porcelain powder, and the material ratio of alumina and porcelain powder is 2:1; the diluent is 600 propylene oxide butyl ether; the curing agent Use p-hydroxybenzenesulfonic a...

Embodiment 2

[0030] A concrete crack repair material, prepared from the following raw materials in parts by weight: 35 parts of modified cement mortar, 5 parts of filler, 6 parts of epoxy resin, 9 parts of diluent, 6 parts of plasticizer, and 7 parts of curing agent 1 part, 1 part of expansion agent, 2 parts of water reducer, and the modified cement mortar is prepared from the following raw materials in parts by weight: 90 parts of cement, 165 parts of sand, 17 parts of propylene milk and 45 parts of water.

[0031] Among them, the cement is made of ordinary Portland cement not lower than 32.5R grade, and the sand is made of sieved fine sand with a fineness modulus of 1.6 and a particle size of less than 2.5mm.

[0032] Among them, the epoxy resin epoxy resin is epoxy resin E51; the filler is a mixture of alumina and porcelain powder, and the material ratio of alumina and porcelain powder is 2:1; the diluent is 600 propylene oxide butyl ether; the curing agent Use p-hydroxybenzenesulfonic ...

Embodiment 3

[0039] A concrete crack repair material, prepared from the following raw materials in parts by weight: 40 parts of modified cement mortar, 5 parts of filler, 7 parts of epoxy resin, 10 parts of diluent, 7 parts of plasticizer, and 8 parts of curing agent 2 parts, 2 parts of expansion agent, 2 parts of water reducer, and the modified cement mortar is prepared from the following raw materials in parts by weight: 90 parts of cement, 170 parts of sand, 18 parts of propylene milk and 45 parts of water.

[0040] Among them, the cement is made of ordinary Portland cement not lower than 32.5R grade, and the sand is made of sieved fine sand with a fineness modulus of 1.6 and a particle size of less than 2.5mm.

[0041] Among them, the epoxy resin epoxy resin is epoxy resin E51; the filler is a mixture of alumina and porcelain powder, and the material ratio of alumina and porcelain powder is 2:1; the diluent is 600 propylene oxide butyl ether; the curing agent Use p-hydroxybenzenesulfon...

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Abstract

The invention discloses a concrete crack repair material and a preparation method thereof, wherein the concrete crack repair material is prepared from the following raw materials by weight: 30-50 parts of modified cement mortar, 4-6 parts of a filler, 5-10 parts of an epoxy resin, 8-12 parts of a diluent, 5-10 parts of a plasticizer, 5-10 parts of a curing agent, 1-2 parts of an expansion agent, and 1-2 parts of a water reducing agent. Compared with the concrete crack repair material in the prior art, the concrete crack repair material of the present invention has the following characteristicsthat the modified cement mortar uses acrylate emulsion mortar, the acrylate emulsion mortar is a novel concrete building repair material, and has excellent performances of improved limit elongation,improved tensile strength, reduced tensile modulus, low shrinkage, significantly improved crack resistance, improved impermeability, improved chlorine ion impermeability and the like compared with ordinary mortar, such that the concrete crack repair material of the technical scheme of the present invention is suitable for the anti-seepage, anti-corrosion protection surface and repair engineering of water conservancy, highways, industrial and civil building, and other reinforced concrete structures.

Description

technical field [0001] The invention relates to the technical field of materials for repairing road and bridge engineering, in particular to a concrete crack repairing material and a preparation method thereof. Background technique [0002] In recent years, the transportation industry has developed rapidly, and the total mileage of national highways has reached more than 4 million kilometers. With the increase of the service life of the highway and the increase of various complex geological environments and vehicle loads, the damage of highway bridges is becoming more and more serious. In order to prolong the service life of highway bridges and ensure the normal traffic capacity of highways, we need to find suitable concrete crack repair materials. There are many commonly used concrete crack repair materials, but ordinary concrete crack repair materials are difficult to meet the requirements of toughness and durability, resulting in repeated repairs in one place, which grea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B14/06C04B24/24C04B18/023C04B14/303C04B24/281C04B24/20C04B24/045C04B2103/302C04B2103/0068
Inventor 应金王军席绪荣章铭童玉贵
Owner 安徽虹达道路桥梁工程有限公司
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