Epoxy resin concrete material with anti-cracking property

A technology of epoxy resin and concrete, which is applied in the field of concrete, can solve the problems of unfavorable influence on the safety and durability of concrete structures, low compression resistance, flexural resistance and crack resistance, poor flexibility and impact resistance, etc., to achieve Accelerate the hardening speed, good water resistance, increase the effect of flexibility

Inactive Publication Date: 2019-05-17
深圳市欧科力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The term concrete usually refers to the cement concrete obtained by mixing cement with cement as cementing material, sand and stone as aggregate, and water (may contain admixtures and admixtures) in a certain proportion, also known as ordinary concrete. Concrete is the most important material for building structures. It is widely used in roads, construction, decoration, heavy industry and other fields, but it is used in high load-bearing and high-impact environments. The compression, flexural and anti-corrosion properties of simple concrete materials The crack performance is low, and cracks are one of the most common diseases of concrete structures, which have a very adverse effect on the

Method used

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  • Epoxy resin concrete material with anti-cracking property
  • Epoxy resin concrete material with anti-cracking property
  • Epoxy resin concrete material with anti-cracking property

Examples

Experimental program
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Embodiment 1

[0050] An epoxy resin concrete material with crack resistance, comprising 65 parts of cement and 35 parts of adhesive, the adhesive includes the following components in percentage by weight: 80% denatured epoxy resin, 15% curing agent, Reactive diluent 5%;

[0051] Described curing agent is triethylamine;

[0052] Described reactive diluent is allyl glycidyl ether;

[0053] The preparation method of described modified epoxy resin specifically comprises the following steps:

[0054] S1, the synthesis of methyl hypophosphite

[0055] The reaction formula is as follows:

[0056]

[0057] Commercially available 50% hypophosphorous acid was removed by rotary evaporation to obtain 95% hypophosphorous acid. Under ice-water bath, 200mol95% hypophosphorous acid and 210mol trimethyl formate were added to the reactor, and the temperature was raised after stirring for 10min. When the temperature was 35°C, the stirring reaction was continued for 3 hours, and methanol and methyl form...

Embodiment 2

[0071] An epoxy resin concrete material with crack resistance, comprising 85 parts of cement and 15 parts of adhesive, said adhesive includes the following components in percentage by weight: 90% denatured epoxy resin, 5% curing agent, Reactive diluent 5%;

[0072] Described curing agent is triethylamine;

[0073] Described reactive diluent is allyl glycidyl ether;

[0074] The preparation of described modified epoxy resin is with embodiment 1.

Embodiment 3

[0076] An epoxy resin concrete material with crack resistance, comprising 80 parts of cement and 20 parts of adhesive, said adhesive includes the following components in percentage by weight: denatured epoxy resin 85%, curing agent 8%, Reactive diluent 7%;

[0077] Described curing agent is triethylamine;

[0078] Described reactive diluent is allyl glycidyl ether;

[0079] The preparation of described modified epoxy resin is with embodiment 1.

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Abstract

The invention discloses an epoxy resin concrete material with the anti-cracking property. The epoxy resin concrete material is prepared from the following components in parts by weight: 65-85 parts ofcement, and 15-35 parts of an adhesive; the adhesive is prepared from the following components in percentage by weight: 80-90% of modified epoxy resin, 5-15% of a curing agent, and 4-8% of a reactivediluent. Linear epoxy resin is subjected to ring opening, then the linear epoxy resin and bis(1-phenyl-2-carboxyl ethyl)phosphonic acid are polymerized and esterified to obtain the modified epoxy resin, the obtained modified epoxy resin has good flexibility, good bonding strength and good impact strength, meanwhile, through introduced carboxyl, the wettability of the modified epoxy resin and acement substrate can be improved, thus adhesive force and anti-aging performance of the cured modified epoxy resin are improved, cracking of concrete is prevented, and the service life of the concrete material is prolonged.

Description

technical field [0001] The invention belongs to the technical field of concrete, in particular to an epoxy resin concrete material with crack resistance. Background technique [0002] Concrete is a general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. The term concrete usually refers to the cement concrete obtained by mixing cement with cement as cementing material, sand and stone as aggregate, and water (may contain admixtures and admixtures) in a certain proportion, also known as ordinary concrete. Concrete is the most important material for building structures. It is widely used in roads, construction, decoration, heavy industry and other fields, but it is used in high load-bearing and high-impact environments. The compression, flexural and anti-corrosion properties of simple concrete materials Crack performance is low, and cracks are one of the most common diseases of concrete structures, which have a v...

Claims

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Application Information

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IPC IPC(8): C04B24/28C08G59/14C04B103/63C04B111/28C04B111/34
Inventor 不公告发明人
Owner 深圳市欧科力科技有限公司
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