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Epoxy asphalt deck crack repairing agent capable of being cured at normal temperature

An epoxy asphalt, room temperature curing technology, used in bridge maintenance, bridges, bridge parts, etc., can solve problems such as weak bonding, and achieve the effects of stable performance, good high temperature flow resistance, and good chemical corrosion resistance.

Inactive Publication Date: 2010-12-22
JIANGSU TRANSPORTATION RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bonding between ordinary hot asphalt and other joint filling materials and epoxy asphalt is relatively weak, and it often cracks again within a year or so.

Method used

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  • Epoxy asphalt deck crack repairing agent capable of being cured at normal temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 1) Prepare two mixtures of A and B

[0012] a. Preparation of Type A mixture is prepared according to the following parts by weight: 30 parts of bisphenol epoxy resin, 2 parts of toughening agent and 7 parts of epoxy reactive diluent, and the above-mentioned components are mixed at room temperature to form Type A mixture.

[0013] b. Prepare Type B mixture according to the following parts by weight: 90 parts of 203 modified amine curing agent, 1 part of DMP-30 curing accelerator, 1 part of organosiloxane coupling agent KH-5501. Mix separately to form a mixture B.

[0014] 2) Preparation of crack repair agent

[0015] The above-prepared Type A mixture and Type B mixture were prepared by weight according to a weight ratio of 3:1, and then stirred and mixed to obtain the crack repair agent of this embodiment.

Embodiment 2

[0017] 1) Prepare two mixtures of A and B

[0018] a. Type A mixture includes the following components in parts by weight: 40 parts of 618 bisphenol A epoxy resin, 6 parts of CYH-277 reactive toughening agent and 3 parts of epoxy reactive diluent. Mix separately to form a mixture.

[0019] b. Type B mixture includes the following components in parts by weight: 100 parts of 203 modified amine curing agent, 2 parts of DMP-30 curing accelerator, 2 parts of KH-550 organosiloxane coupling agent. The components are mixed to form the B mixture.

[0020] 2) Preparation of crack repair agent

[0021] The above-prepared Type A mixture and Type B mixture were weight-proportioned and mixed at a weight ratio of 3:1 to prepare the crack repair agent of this embodiment.

Embodiment 3

[0023] In this embodiment, the weight proportions of the components of the A mixture and the B mixture are slightly different, and the other preparation processes are the same, as follows:

[0024] 1) Prepare two mixtures of A and B

[0025] a. Type A mixture includes the following components in parts by weight: 35 parts of 618 bisphenol epoxy resin, 4 parts of CYH-277 reactive toughening agent and 5 parts of epoxy reactive diluent. Mix to form a mixture.

[0026] b. Type B mixture includes the following components in parts by weight: 95 parts of 203 modified amine curing agent, 1 part of DMP-30 curing accelerator, 2 parts of KH-550 organosiloxane coupling agent. The components are mixed to form the B mixture.

[0027] 2) Preparation of crack repair agent

[0028] Carry out the weight proportioning and mixing of the above-mentioned prepared A mixture and B mixture in a weight ratio of 3:1

[0029] Mix to prepare the crack repair agent of this embodiment.

[0030] The DMP-...

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Abstract

The invention relates to an epoxy asphalt deck crack repairing agent capable of being cured at normal temperature, which comprises mixture A and B, wherein the mixture A contains the following components in parts by weight: 30-40 parts of 618 bisphenol A epoxy resin, 2-6 parts of CYH-277 reactive epoxy toughener and 3-7 parts of epoxy active diluent; and the mixture B contains the following components in parts by weight: 90-100 parts of 203 modified amine hardener, 1-2 parts of DMP-30 curing accelerator and 1-2 parts of KH-550 organic siloxane coupling agent. After being respectively prepared, the mixtures A and B are respectively stirred and mixed; and after the mixture (1) and the mixture (2) which are uniformly stirred are mixed together in the weight ratio of 3:1, the mixture (1) and the mixture (2) are stirred and mixed to obtain the repairing agent. Because the repairing agent contains the bisphenol A epoxy resin, the repairing agent has super-strong bonding capability and stable performance in the variation range of deck temperature; the repairing agent has good high-temperature flow resistance, compact structure, water tightness, certain deformation resistance and good chemical corrosion resistance; and the comprehensive performance of the repairing agent is obviously better than that of the traditional asphalt crack pouring material.

Description

technical field [0001] The invention relates to a maintenance and repair material for an epoxy asphalt bridge deck pavement layer, in particular to a room temperature curing epoxy asphalt bridge deck crack repair agent. Background technique [0002] With the rapid development of highway and bridge technology, more and more bridges use epoxy asphalt materials as bridge deck pavement, which greatly improves the quality and service life of bridge deck pavement. [0003] However, some domestic asphalt bridge deck pavements will crack due to the increase of traffic volume and axle load. The epoxy asphalt material has the characteristics of relatively high rigidity. Once cracking occurs, it will penetrate from top to bottom and form cracks. Due to the existence of these cracks, if the bridge deck pavement is not equipped with a waterproof layer or the waterproof effect is not good, the water or antifreeze salt solution of the surface layer will seep through the cracks, causing da...

Claims

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Application Information

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IPC IPC(8): C08L63/02C08G59/50C08K5/5415E01D22/00E01D19/12
Inventor 曹荣吉张志祥孟祥森潘友强
Owner JIANGSU TRANSPORTATION RES INST CO LTD
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