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Storable emulsified asphalt cold-patch mixture and preparation method and application thereof

A technology of emulsified asphalt and cold-replenishing material, applied in the direction of roads, road repair, roads, etc., can solve the problems of adverse effects on the strength and durability of the mixture, slow volatilization, etc., to improve the efficiency of road maintenance, enhance the consistency, overcome the formation strength slow effect

Active Publication Date: 2011-09-21
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The mixture with polymer prepolymer as the main additive and the mixture with diluted asphalt as cement mostly contain light oil (mostly diesel), although this cold patch has good construction workability, water Stability, and the storage time is relatively long, but because the mixture contains more light oil, the volatilization is very slow, which will adversely affect the strength and durability of the mixture

Method used

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  • Storable emulsified asphalt cold-patch mixture and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The preparation method of the emulsified asphalt cold patch in this embodiment is as follows. Take 1% polyester fiber, 1% emulsion method polyoxyethylene, and the rest of the stone in the mixer and mix for 1 to 2 minutes, then add 6% water, stir for 0.5 to 1 minute, fully wet the stone, and then add 7% part of emulsified asphalt, after stirring for 1 minute, sealed and bagged to obtain emulsified asphalt cold patch. Wherein the composition weight ratio of each component of the emulsified asphalt is: No. 70 asphalt balance, GYM-02 emulsifier 1% (Henan Province Weisende Road Material Co., Ltd.), cellulose sodium 1%, water 26.5 parts. When in use, take out the cold patch material, pour it into the pit, and after compaction, it can be opened for traffic. The performance indicators are shown in Table 1.

Embodiment 2

[0041] The preparation method of the emulsified asphalt cold patch in this embodiment is as follows. Take 2% lignin fiber, 3% fumed silica, and the rest of the stone and mix it in a mixer for 1-2 minutes, then add 5% water, stir for 0.5-1 minute, fully wet the stone, and then add 10 % emulsified asphalt, after stirring for 1 minute, sealed and bagged to obtain emulsified asphalt cold patch. Wherein the composition weight ratio of each component of the emulsified asphalt is: No. 70 asphalt balance, UCAN-58 emulsifier 1.26% (phenol ether sulfate, Shanghai Zhongcheng Fine Chemical Co., Ltd.), sodium polyacrylate 1.08%, water 29.16%. When in use, take out the cold patch material, pour it into the pit, and after compaction, it can be opened for traffic. The performance indicators are shown in Table 1.

Embodiment 3

[0043] The preparation method of the emulsified asphalt cold patch in this embodiment is as follows. Take 1% lignin fiber, 2% fumed silica, and the rest of the stone and mix them in a mixer for 1-2 minutes, then add 5.5% water, stir for 0.5-1 minute, fully wet the stone, and then add 8 % parts of emulsified asphalt, after stirring for 1 minute, sealed and bagged to obtain emulsified asphalt cold patch. Wherein the composition weight ratio of each component of the emulsified asphalt is: the remainder of No. 70 asphalt, 1.5% of UCAN-58 emulsifier (phenol ether sulfate, Shanghai Zhongcheng Fine Chemical Co., Ltd.), 2% of sodium cellulose, and 30.32% of water. When in use, take out the cold patch material, pour it into the pit, and after compaction, it can be opened for traffic. The performance indicators are shown in Table 1.

[0044] Table 1 Performance indicators of emulsified asphalt cold patch

[0045]

[0046] The cohesion test performance of the emulsified asphalt col...

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Abstract

The invention relates to a storable emulsified asphalt cold-patch mixture and a preparation method and application thereof. The storable emulsified asphalt cold-patch mixture consists of the following components in percentage by weight: 7 to 8 percent of emulsified asphalt, 5 to 6 percent of water, 1 to 2 percent of reinforcing agent, 1 to 3 percent of thixotropic agent and the balance of stone, wherein the emulsified asphalt consists of the following components in percentage by weight: 1.0 to 1.5 percent of emulsifying agent, 1 to 3 percent of thickening agent, 26.5 to 36.5 percent of water and the balance of No.70 asphalt. The storable emulsified asphalt cold-patch mixture has the advantages of convenience of manufacture, long storage time, no environmental pollution, convenience of construction, capacity of opening the traffic after construction and the like, and is suitable for repairing pot holes of asphalt pavements.

Description

technical field [0001] The invention relates to a storable emulsified asphalt cold patch and its preparation method and application, belonging to emulsified asphalt cold patch. Background technique [0002] According to the different types of cementing materials, the cold patch asphalt mixture on the market at this stage mainly includes the mixture with polymer prepolymer as the main additive and the mixture with light oil (mostly diesel) diluted asphalt as the cementing material. . For example, CN 101008172A mentions a regenerative road cold repair material, which is formed by heating and mixing highway road surface washing and planing materials, a small amount of new stone, cold repair additives, diesel oil and polymer activation modification additives in a certain proportion. The cold patch asphalt additive in CN 1810885A comprises styrene-butadiene-styrene block copolymer, resin, solvent, mineral oil, styrene, diesel oil and asphalt. CN 1667045A mentions that a cold re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26E01C19/10E01C23/09
Inventor 刘艳马庆丰张烨马志君张生泉
Owner PETROCHINA CO LTD
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