A kind of asphalt cold patching agent and its application

A technology of cold patching agent and asphalt, which is applied in the field of asphalt cold patching agent, can solve the problems of poor low temperature resistance and high temperature resistance of cold patching material, low initial strength of cold patching material, and poor road surface smoothness, etc. Humidity, excellent water stability, and easy storage

Active Publication Date: 2020-11-27
重庆通力高速公路养护工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the quality of domestically produced cold patching materials varies from good to bad. Cold patching materials are poor in low-temperature and high-temperature resistance. They are prone to embrittlement and crusting in low-temperature environments, and are easy to soften in high-temperature environments, resulting in poor road surface flatness, and cold patching materials often have low initial strength. High, resulting in poor performance, easy to loose and fall off, making cold patching can only be used as a temporary treatment for diseases

Method used

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  • A kind of asphalt cold patching agent and its application
  • A kind of asphalt cold patching agent and its application
  • A kind of asphalt cold patching agent and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An asphalt cold patching agent is composed of the following ingredients in parts by mass: 32% of terpene resin, 2% of epoxy resin, 16% of heavy oil and 50% of diesel. Weigh terpene resin, epoxy resin, heavy oil, and diesel oil in proportion, and mix them uniformly by mechanical stirring or pump circulation device to obtain asphalt cold patching agent. The asphalt cold repair agent of the present invention is a yellow oily liquid.

[0018] A kind of asphalt pavement disease maintenance cold patching material, comprising 4 parts of asphalt, 12 parts of 10-15mm crushed stone, 47 parts of 5-10mm crushed stone, 44 parts of 0-5mm machine-made sand, and 1.3 parts of above-mentioned asphalt cold patching agent, Wherein the crushed stone particle size is 5mm-16mm, the type of cold patching material of the present invention is AMR-13, and the mixing ratio of AMR-13 cold patching material is 10-15mm: 5-10mm: 0-5mm=11%: 46%: 43% , the gradation ranges of all aggregates and fillers...

Embodiment 2

[0034] An asphalt cold patching agent is composed of the following formula components in parts by mass: 33% of terpene resin, 3% of epoxy resin, 17% of heavy oil and 47% of diesel.

[0035] A kind of cold repair material for asphalt pavement disease maintenance, comprising 5 parts of asphalt, 11 parts of 10-15mm crushed stone, 46 parts of 5-10mm crushed stone, 43 parts of 0-5mm machine-made sand, and 1.4 parts of the above-mentioned asphalt cold repair agent, Wherein the crushed stone particle size is 5mm-16mm, the type of cold patching material of the present invention is AMR-13, and the mixing ratio of AMR-13 cold patching material is 10-15mm: 5-10mm: 0-5mm=11%: 46%: 43% , the gradation ranges of all aggregates and fillers are shown in Table 1; the preparation method is the same as in Example 1.

Embodiment 3

[0037] An asphalt cold patching agent is composed of the following formula components in parts by mass: 34% of terpene resin, 3% of epoxy resin, 18% of heavy oil and 45% of diesel oil.

[0038] A kind of cold patching material for asphalt pavement disease maintenance, including 5 parts of asphalt, 12 parts of 10-15mm crushed stone, 46 parts of 5-10mm crushed stone, 43 parts of 0-5mm machine-made sand and 1.4 parts of the above-mentioned asphalt cold patching agent. The type of cold patching material invented is AMR-13, and the mixing ratio of AMR-13 cold patching material is 10-1~5mm: 5-10mm: 0-5mm=12%: 46%: 43%, the gradation of all aggregates and fillers The range is as shown in Table 1; the preparation method is the same as in Example 1.

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Abstract

The invention relates to an asphalt cold repair agent. The asphalt cold repair agent is yellow oily liquid and comprises 30-34% of a tackifier, 2-4% of a binding agent, 16-18% of heavy oil and 44-52%of a diluent. Low-temperature fluidity of cold repair materials is improved by a reasonable ratio of components, and the asphalt cold repair agent remarkably raises the asphalt softening point, improves rutting resistance and improves resistance to low-temperature bending failure. The cold repair materials prepared from the asphalt cold repair agent have advantages of repairability at any time, high workability, high temperature stability, high molding intensity, high water stability, high durability, easiness in storage and the like, and service lives of the cold repair materials are effectively prolonged.

Description

technical field [0001] The invention belongs to the field of asphalt mixture preparation, and relates to an asphalt cold repair agent and its application. Background technique [0002] As a seamless continuous pavement, asphalt pavement has good mechanical strength, can adapt to various driving loads, and has the advantages of stable driving, comfortable driving, low noise and easy maintenance, etc., and has been more and more widely used. . During the long-term use of asphalt pavement, there will be pits, looseness, peeling and other diseases, which will affect the normal use of the road and even cause traffic accidents. Therefore, it is necessary to repair the pits, damage and other diseases on the road surface in time. There are two types of pavement pothole repair: hot repair method and cold repair method. Traditional hot repair construction is feasible for road repairs with concentrated locations and large engineering quantities, but it is very inconvenient for road s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L45/00C08L63/00C04B26/26
CPCC04B26/26C08L45/00C04B24/26C04B24/281C04B24/08C04B14/02C04B14/06C08L63/00
Inventor 谢世平吴清高邵东李太平张道君赵馨鑫刘鑫韦祎葛怡显刘晓霞邓明成林海秦伟窦雪峰刘卓鑫
Owner 重庆通力高速公路养护工程有限公司
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