Cold-stirring cold-paving type epoxy modified asphalt material and preparation method thereof

A technology of epoxy modification and asphalt material, applied in building thermal insulation materials, building components, buildings, etc., can solve the problems of high price, secondary cracking, poor toughness of asphalt binder, etc., to suppress insufficient toughness and improve fatigue toughness , the effect of simple construction process

Inactive Publication Date: 2017-07-25
JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN103215874B repairs potholes on epoxy asphalt steel bridge deck by mixing epoxy resin and cold-mix asphalt mixture, but the cold-mix asphalt mixture still needs to be pre-mixed at 40-80°C Patent CN104031396A and CN104031394A adopt toxic solvents such as a large amount of xylene, styrene, methyl methacrylate to realize the mixing of epoxy asphalt at normal temperature, which is not conducive to the health of operators and users; the cold-setting property described in patent CN103696366B Resin asphal

Method used

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  • Cold-stirring cold-paving type epoxy modified asphalt material and preparation method thereof
  • Cold-stirring cold-paving type epoxy modified asphalt material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The preparation method of the first cold-mixed and cold-paved epoxy-modified asphalt material of the present invention has the following steps:

[0046] Put 10 parts of cardanol glycidyl ether into the reaction kettle, and after it is heated to 100°C, add 10 parts of Korean Ssangyong No. 70 asphalt that has been heated to 120°C in advance, the stirring speed is 60r / min, and the stirring and mixing time is 30min to obtain a liquid Asphalt; put 10 parts of E-54, 80 parts of self-made epoxy-terminated polysulfide rubber, 10 parts of phenyl glycidyl ether and 1 part of β-(3,4-epoxycyclohexyl) ethyl trimethoxysilane in sequence In the liquid asphalt, after the material in the kettle rose to 60°C, continue to stir and mix for 120min at a stirring rate of 60r / min to obtain cold-mix and cold-pavement epoxy-modified asphalt main agent A; 67 parts of self-made amino-terminated polyurethane prepolymer , 33 parts of isophorone diamine and 1 part of triethanolamine are put into the ...

Embodiment 2

[0048] The preparation method of the second cold-mixed cold-paved epoxy-modified asphalt material of the present invention has the following steps:

[0049] Put 20 parts of epoxy fatty acid methyl ester into the reaction kettle, and after it is heated to 80°C, add 20 parts of Korean Ssangyong No. 90 asphalt that has been heated to 120°C in advance, the stirring speed is 60r / min, and the stirring and mixing time is 30min to obtain a liquid Asphalt; Put 20 parts of E-51, 70 parts of self-made epoxy-terminated polyurethane prepolymer, 10 parts of C12-14 alkyl glycidyl ether and 1 part of γ-glycidyloxypropyltrimethoxysilane into liquid asphalt in sequence , after the material in the kettle rises to 60°C, continue to stir and mix for 120min at a stirring rate of 60r / min to obtain cold-mix and cold-pavement epoxy-modified asphalt main agent A; mix 50 parts of D-230, 50 parts of N-aminoethyl Piperazine and 1 part of DMP-30 were put into the reaction kettle in turn, stirred and mixed ...

Embodiment 3

[0051] The preparation method of the third cold-mixing and cold-paving epoxy-modified asphalt material of the present invention has the following steps:

[0052] Put 10 parts of castor oil glycidyl ether into the reaction kettle, after it is heated up to 90°C, add 10 parts of Korean Ssangyong No. 90 asphalt preheated to 120°C, the stirring speed is 60r / min, and the stirring and mixing time is 30min to obtain a liquid Asphalt; put 30 parts of E-44, 60 parts of self-made epoxy-terminated nitrile rubber, 10 parts of polyethylene glycol diglycidyl ether and 1 part of γ-(methacryloyloxy)propyl trimethoxysilane in sequence In the liquid asphalt, after the material in the kettle rose to 80°C, continue to stir and mix for 120min at a stirring rate of 60r / min to obtain cold-mix and cold-pavement epoxy modified asphalt main agent A; mix 33 parts of D-400, 67 parts of 1 , 3-bis(aminomethyl)cyclohexane and 5 parts of nonylphenol were put into the reaction kettle in turn, stirred and mixed...

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Abstract

The invention discloses a cold-stirring cold-paving type epoxy modified asphalt material and a preparation method thereof. The cold-stirring cold-paving type epoxy modified asphalt material is composed of a main ingredient A and a curing agent B; the main ingredient A comprises the following components in parts by weight: 0-50 parts of epoxy resin, 40-90 parts of flexibilizer, 5-15 parts of reactive diluent, 10-40 parts of asphalt, 10-40 parts of active bulking agent and 0-5 parts of coupling reagent; the curing agent B comprises the following components in parts by weight: 0-100 parts of flexible curing agent, 0-100 parts of alicyclic amine curing agent and 0-10 parts of accelerant; and the ratio of the main ingredient A to the curing agent B is (1-5):1. The invention utilizes a self-assembly behavior of the active bulking agent on the surface of asphalt particles to solve the problem of compatibility between weak polar asphalt and strong polar epoxy resin. A flexible chain segment is introduced into an epoxy asphalt three-dimensional structure network by the flexibilizer and the flexible curing agent, so that the fatigue toughness of the epoxy asphalt material is greatly promoted and the secondary cracking phenomenon caused by insufficient toughness is effectively restrained.

Description

technical field [0001] The invention relates to a cold-mix and cold-pave epoxy-modified asphalt material, in particular to a cold-mix and cold-pave epoxy-modified asphalt material for steel bridge deck pavement maintenance and a preparation method thereof. Background technique [0002] Epoxy asphalt steel bridge deck pavement has the performance defect of "excessive strength and insufficient fatigue". Under the service conditions of heavy load, high temperature and rainy in China, the early construction of epoxy asphalt steel bridge deck pavement in China has successively suffered from pothole disease In the frequent period, it is urgent to use cementing materials with convenient construction, short maintenance period and good fatigue performance to repair the pits and grooves. [0003] If hot-mixed epoxy asphalt consistent with the original pavement is used to treat pit diseases, special heating equipment and small hot-mixing equipment are required, and the curing time at r...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08G59/40C08G59/50
CPCC08L95/00C08G59/4057C08G59/50C08G59/5026C08K2201/014C08L2205/03C08L2205/08C08L63/00C08L81/04C08K5/1515C08K5/5435C08L75/04C08L9/02
Inventor 李款潘友强张辉陈李峰张健
Owner JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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