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Preparation method of repair material for asphalt pavement crack

A crack repairing and asphalt pavement technology, applied in building insulation materials, building components, buildings, etc., can solve problems such as insufficient performance and price, and achieve the effects of good viscosity, high elasticity and strong wear resistance

Inactive Publication Date: 2017-05-31
JIANGSU JINGWEI TECH INNOVATION CONSULTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current repair materials are insufficient in both performance and price, and it is necessary to develop new cost-effective repair materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A preparation method for an asphalt pavement crack repairing material, comprising the following steps:

[0018] Step 1, in parts by weight, mix 20 parts of base asphalt, 2 parts of methyl vinyl silicone rubber, 1 part of coumarone resin, 0.5 part of white carbon black, and 0.4 part of pottery clay, and fill with CO 2 , sealed and left standing to obtain mixture A;

[0019] Step 2, in parts by weight, add 0.8 parts of polyol, 0.1 part of citric acid triacetic acid, 0.2 parts of sodium metabisulfite, 0.4 parts of castor oil propylene oxide polymer, and 0.5 parts of titanate coupling agent into mixture A, heat up and melt , standing for 4-8h to obtain mixture B;

[0020] Step 3, in parts by weight, mix the mixture B with 4 parts of rubber powder, 2 parts of polyphosphoric acid, 1 part of tackifier, and 0.5 part of co-solvent, and disperse to obtain the product.

[0021] Among them, the conditions for sealing and standing in step 1 are 40-50°C, 10-15h; The conditions are...

Embodiment 2

[0023] A preparation method for an asphalt pavement crack repairing material, comprising the following steps:

[0024] Step 1, in parts by weight, mix 20 parts of base asphalt, 3 parts of methyl vinyl silicone rubber, 2 parts of coumarone resin, 0.8 parts of white carbon black, and 0.7 parts of pottery clay, and fill with CO 2 , sealed and left standing to obtain mixture A;

[0025] Step 2, in parts by weight, add 1.4 parts of polyol, 0.4 parts of citric acid triacetic acid, 0.3 parts of sodium metabisulfite, 0.5 parts of castor oil propylene oxide polymer, and 0.8 parts of titanate coupling agent into mixture A, heat up and melt , standing for 4-8h to obtain mixture B;

[0026] Step 3, in parts by weight, mix the mixture B with 5 parts of rubber powder, 4 parts of polyphosphoric acid, 2 parts of tackifier, and 0.9 parts of co-solvent, and disperse to obtain the product.

[0027] Among them, the conditions for sealing and standing in step 1 are 40-50°C, 10-15h; The conditio...

Embodiment 3

[0029] A preparation method for an asphalt pavement crack repairing material, comprising the following steps:

[0030] Step 1, in parts by weight, mix 20 parts of base asphalt, 2 parts of methyl vinyl silicone rubber, 3 parts of coumarone resin, 0.9 parts of white carbon black, and 0.5 parts of pottery clay, and fill with CO 2 , sealed and left standing to obtain mixture A;

[0031] Step 2, in parts by weight, add 1.4 parts of polyol, 0.3 parts of citric acid triacetic acid, 0.4 parts of sodium metabisulfite, 0.5 parts of castor oil propylene oxide polymer, and 0.9 parts of titanate coupling agent into mixture A, heat up and melt , standing for 4-8h to obtain mixture B;

[0032] Step 3, in parts by weight, mix the mixture B with 6 parts of rubber powder, 4 parts of polyphosphoric acid, 2 parts of tackifier, and 1.1 parts of co-solvent, and disperse to obtain the product.

[0033] Among them, the conditions for sealing and standing in step 1 are 40-50°C, 10-15h; The conditio...

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PUM

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Abstract

The invention provides a preparation method of a repair material for an asphalt pavement crack. The method comprises the steps that matrix asphalt, methyl vinyl silicone rubber, coumarone resin, white carbon black and argil are mixed; CO2 is fully supplied; sealing is performed for standing; polyhydric alcohol, citroyl triacetate, sodium pyrosulfite, a castor oil propene oxide polymer and a titanate coupling agent are added; heating, smelting and standing are performed; and finally an obtained mixture, rubber powder, polyphosphoric acid, a tackifier and a cosolvent are mixed and dispersed to obtain the repair material. Indexes such as the cone penetration, a softening point, a flow value, an elastic recovery rate and the low temperature tension of the repair material obtained by the method meet technical requirements of a professional standard JT / T 740-2009 Rubber Asphalt Sealant and Filler of Pavement for the repair material for the crack; the repair material has the characteristics of high elasticity, good viscosity, high abrasive resistance, energy saving, environmental protection and the like; and demands of repeated pavement bonding and crack deformation can be met.

Description

technical field [0001] The invention belongs to the technical field of floor mat materials, and in particular relates to a preparation method of an asphalt pavement crack repairing material. Background technique [0002] Highway is a belt-shaped structure exposed to nature for a long time. It has long been tested by harsh external environments such as extreme heat, severe cold, freeze-thaw, rain, snow, and sun exposure, and is subjected to repeated instantaneous dynamic loads that are increasing. As a result, the asphalt pavement has produced a large number of early failures. Therefore, most of the asphalt pavements in our country have entered the peak period of maintenance and repair, and cracks are the most important form of damage to asphalt pavements. Once cracks appear on the pavement, it not only destroys the integrity of the pavement structure but also greatly reduces the driving comfort and safety. If it is not repaired in time, the cracks will be impacted by the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L83/07C08L45/02C08L21/00C08K13/02C08K3/36C08K3/34C08K5/053C08K5/10
CPCC08L95/00C08L2205/035
Inventor 吴娟
Owner JIANGSU JINGWEI TECH INNOVATION CONSULTING CO LTD