Bionic asphalt-based crack pouring glue material and preparing method thereof

An asphalt-based, joint-filling glue technology, which is applied in the direction of asphalt material adhesives, adhesives, adhesive types, etc., can solve the problems of rapid failure, poor adhesion between the joint-filling glue and the crack wall, and short validity period

Active Publication Date: 2019-08-13
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defects of current asphalt pavement crack repair and maintenance materials in the presence of crack wall interface water, poor adhesion performance, rapid failure and short validity period, the purpose of the present invention is to provide a bionic asphalt-based joint-filling adhesive material
This material is based on the water-resistant structural unit (catechol) secreted by aquatic organisms, and synthesizes a new type of water-resistant organic molecule with a catechol structural unit through molecular design, and introduces this organic molecule into the joint glue system To solve the problem of poor adhesion between the joint glue and the crack wall under the condition of interface water

Method used

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  • Bionic asphalt-based crack pouring glue material and preparing method thereof
  • Bionic asphalt-based crack pouring glue material and preparing method thereof
  • Bionic asphalt-based crack pouring glue material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 0.1 mol of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) to 100 mL of phosphate buffer, then adjust the pH to 5, and then add Add 0.1 mol of polyethyleneimine and 0.3 mol of 3,4-dihydroxybenzoic acid, stir slowly at room temperature for 3 hours, after the reaction is over, let it stand for stratification to get water-containing catechol structural unit A multi-component polymer, this multi-component polymer is dried at 80°C and -53.9KPa for half an hour to obtain an anhydrous multi-component polymer containing catechol structural units, and anhydrous The multi-component polymer continues to keep warm at 80°C for later use.

[0032] Select 100 parts of heavy traffic road asphalt AH-70 and heat it to a fluid state at 120°C, add 0.1 part of adhesive synergist (nano cesium tungsten oxide, cesium / tungsten = 30 / 70) under stirring conditions (speed 80rpm) , 1 part of tackifier (terpene resin) and 1 part of polymer modifier (SBS), cut at 5000rpm for 30m...

Embodiment 2

[0038] Add 0.1mol of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) to 100mL of phosphate buffer, then adjust the pH to 5.5, and then add Add 0.1 mol of polyethyleneimine and 0.3 mol of 3,4-dihydroxyphenylacetic acid, stir slowly at room temperature for 3 hours, after the reaction is over, let it stand for stratification to get water-containing catechol structural unit A multi-component polymer, this multi-component polymer is dried at 80°C and -53.9KPa for half an hour to obtain an anhydrous multi-component polymer containing catechol structural units, and anhydrous The multi-component polymer continues to keep warm at 80°C for later use.

[0039] Select 100 parts of heavy traffic road asphalt AH-90 and heat it to a fluid state at 110°C, and add 0.5 parts of adhesive synergistic additive (nano-antimony tin oxide, tin / antimony=50 / 50) under stirring conditions (speed 80rpm) , 3 parts of tackifier (terpene resin) and 5 parts of polymer modifier (SBS), cut 60m...

Embodiment 3

[0041] Add 0.1mol of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) to 100mL of phosphate buffer, then adjust the pH to 4.5, and then add Add 0.1 mol of polyethyleneimine and 0.3 mol of 3,4-dihydroxyphenylpropionic acid, stir slowly at room temperature for 3 hours, after the reaction is over, let it stand for stratification to obtain a hydrous catechol-containing structure Unit multi-component polymer, after drying this multi-component polymer at 80°C and -53.9KPa for half an hour, an anhydrous multi-component polymer containing catechol structural units is obtained, and the The multi-component polymer of water continues to keep warm at 80°C for later use.

[0042]Select 100 parts of heavy traffic road asphalt AH-70 and heat it to a fluid state at 130°C, and add 0.3 parts of adhesive synergistic additive (nano cesium tungsten oxide, cesium / tungsten = 40 / 60) under stirring conditions (speed 80rpm) , 2 parts of tackifier (terpene resin) and 3 parts of polymer...

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Abstract

The invention discloses a bionic asphalt-based crack pouring glue material and a preparing method thereof, and belongs to the technical field of asphalt pavement maintenance. The bionic asphalt-basedcrack pouring glue material is prepared from, by weight, 100 parts of heavy traffic asphalt, 1-2 parts of a bionic adhesive, 0.1-0.5 part of an adhesive synergistic aid, 1-3 parts of a tackifier and 1-5 parts of a polymer modifier. According to the bionic asphalt-based crack pouring glue material and the preparing method thereof, a water-resistance structure unit catechol secreted by aquatic organisms is utilized as a basis, and the bionic adhesive is synthesized through molecular design, and then introduced into an asphalt-based crack pouring glue system. The bionic asphalt-based crack pouring glue material overcomes the defects of a current crack pouring glue material that construction cannot be achieved in the presence of water on an interface or the adhesion performance is poor and thevalidity period is short in the presence of water on the interface, and is an asphalt-based crack pouring glue material with a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of asphalt pavement maintenance, and in particular relates to a bionic asphalt-based joint-filling adhesive material and a preparation method thereof. Background technique [0002] Asphalt pavement has some special advantages, such as good shock absorption effect, high driving comfort, low noise, etc., it occupies a large proportion in various grades of roads. Compared with cement pavement, asphalt pavement is more prone to diseases during the service process after completion. Among them, cracks are the earliest and inevitable of all diseases, and are an important cause of many subsequent diseases. [0003] The treatment of asphalt pavement cracks should be done sooner rather than later. Early treatment can not only restore the performance of the road surface, improve driving safety, and prolong the service life of the road surface; it can also greatly reduce the manpower, material and financial resources co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J195/00C09J179/02C09J11/08C09J11/04
CPCC08K2201/011C08L2205/035C09J11/04C09J11/08C09J195/00C08L79/02C08L53/02C08K3/22
Inventor 丁永玲孙华东王保群张爱勤王德明南峰董福营谭旭翔
Owner SHANDONG JIAOTONG UNIV
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