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Material for treating pavement segregation

A cationic and emulsification treatment technology, used in building thermal insulation materials, building components, buildings, etc., can solve the problems of oil flooding and limited treatment effect, and achieve the effects of good water and workability, good fluidity, and good thermal stability.

Active Publication Date: 2016-08-17
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the existing technology, measures such as spraying emulsified asphalt and milling are generally adopted for the treatment of road surface segregation, but the treatment effect is very limited, especially after the measures of spraying emulsified asphalt are used, there will be oil flooding in the initial stage of use

Method used

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Examples

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preparation example Construction

[0042] In the present invention, the preparation method of described aqueous epoxy resin emulsion preferably comprises the steps:

[0043] Carry out softening treatment to bisphenol A epoxy resin;

[0044] The softened bisphenol A epoxy resin is emulsified with a compounded emulsifier and water to obtain an aqueous epoxy resin emulsion.

[0045] The invention softens the bisphenol A epoxy resin to obtain the softened bisphenol A epoxy resin. In the present invention, the temperature of the softening treatment is preferably 25-35°C, more preferably 28-33°C, and most preferably 30-31°C. In the present invention, there is no special requirement on the softening treatment time, as long as the bisphenol A epoxy resin can be softened, it is about 1 minute. In the present invention, the softening treatment is preferably carried out under the condition of stirring, so that the bisphenol A epoxy resin is heated evenly and the softening process is accelerated.

[0046] After the soft...

Embodiment 1

[0079] Water-based epoxy resin: soften 11 parts of bisphenol A epoxy resin at 30°C, and mix with 6 parts of alkylphenol polyoxyethylene ether and 3 parts of cetyltrimethylammonium chloride after softening, stirring While adding hot water preheated to 70°C, emulsify at 70°C for 30 minutes to obtain a water-based epoxy resin emulsion.

[0080] Cationic emulsified asphalt: at a temperature of 280°C, hydrolyze 1 part of cottonseed oil in 4 parts of water for 25 minutes to obtain mixed fatty acids; react the long-chain mixed fatty acids with maleic acid to obtain tricarboxylic acid intermediates; A cationic asphalt emulsifier is obtained by reacting tricarboxylic acid intermediates with polyethylene polyamines.

[0081] The 30 parts product model is SK90 # Asphalt, 4 parts of cationic asphalt emulsifier and 40 parts of water are mixed to obtain cationic emulsified asphalt.

[0082] A mixture of 50 parts of water-based epoxy resin emulsion and 35 parts of cationic emulsified aspha...

Embodiment 2

[0097] Water-based epoxy resin: soften 11 parts of bisphenol A epoxy resin at 30°C, and mix with 6 parts of alkylphenol polyoxyethylene ether and 3 parts of cetyltrimethylammonium chloride after softening, stirring While adding hot water preheated to 70°C, emulsify at 70°C for 30 minutes to obtain a water-based epoxy resin emulsion.

[0098] Cationic emulsified asphalt: at 270°C, hydrolyze 1 part of cottonseed oil in 3 parts of water for 30 minutes to obtain mixed fatty acids; react the long carbon chain mixed fatty acids with maleic acid to obtain tricarboxylic acid intermediates; A cationic asphalt emulsifier is obtained by reacting tricarboxylic acid intermediates with polyethylene polyamines.

[0099]The 70 parts product model is SK90 # Asphalt, 3 parts of cationic asphalt emulsifier and 50 parts of water are mixed to obtain cationic emulsified asphalt.

[0100] A mixture of 40 parts of water-based epoxy resin emulsion and 40 parts of cationic emulsified asphalt is mixed...

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Abstract

The invention provides a material for treating pavement segregation. The material for treating pavement segregation is prepared from, by weight, 30-60 parts of waterborne epoxy resin emulsion, 20-50 parts of positive ion emulsified asphalt and 10-30 parts of a waterborne curing agent. The material for treating pavement segregation can be free of the bleeding phenomenon in the using process, is liquid at the room temperature, and is low in viscosity and good in fluidity, and reasonable operable time is available. The good fluidity of the emulsion is utilized, emulsion is made to seep downwards, a gap in a segregation part is filled with the emulsion after demulsification, and the material is well bonded to a structural layer after seeping down, and is good in self-strength, so that a good interlayer bonding effect is achieved, and the purpose of sealing the upper portion, blocking the lower portion and carrying out proper strengthening on the segregation part is achieved. Besides, a cured product of the material for treating pavement segregation has good thermal stability, the starting thermal weight loss temperature of the cured product can reach 300 DEG C, the contact angle can reach 113 degrees, and the evaporation residue contact angle of emulsified asphalt is smaller than 99 degrees.

Description

technical field [0001] The invention relates to the technical field of road surface repair materials, in particular to a material for treating road surface segregation. Background technique [0002] Asphalt pavement segregation refers to the inhomogeneity of the main properties of asphalt mixture in a certain area of ​​the pavement, including asphalt content, gradation composition, external admixture content, and pavement porosity, which accelerates the damage of the asphalt pavement. Some early damages of highway asphalt pavement, such as network cracks, deformation and potholes caused by water damage, local severe ruts, local oil flooding, many transverse cracks and uneven structural depth of newly paved asphalt pavement, etc., are related to asphalt The segregation of the mixture is related. [0003] Pavement segregation occurs in various construction processes. The segregated parts have low strength and are prone to water seepage, which seriously affects the durability ...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L95/00C08J3/03
CPCC08J3/03C08L63/00C08L95/00C08J2395/00C08L2205/03C08L2201/08C08J2363/00
Inventor 蒋应军陈浙江弥海晨沈彬李寿伟郭彦强
Owner CHANGAN UNIV
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