Anti-freezing wearing layer and maintenance construction method of asphalt pavement

A technology of asphalt pavement and construction method, which is applied in the direction of coagulation pavement paved on site, roads, roads, etc., to achieve the effects of ensuring stability, reducing costs, and excellent corrosion resistance

Pending Publication Date: 2021-09-03
江苏瑞文戴尔交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing salt-storage active anti-icing pavement technology has very large application limitations:
This determines that this type of anti-icing pavement can only be used for new roads or large and medium repair projects of roads

Method used

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  • Anti-freezing wearing layer and maintenance construction method of asphalt pavement

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The road surface of the present embodiment is not good, the road surface layer is aging, the asphalt softening point is increased by 8 ° C, the needle is 65% of the new paved asphalt, so the anti-codble wear layer is added Pre-spraying the perfiltration agent.

[0060] The anticoagulant wear layer of the present embodiment is formulated from the following weight ratio of the raw material mixed: anti-coagulation ice abrasive layer special assembly 85%; anti-coagulation wear layer dedicated emulsified asphalt 15%.

[0061] Among them, the anti-codble wear layer special assembly is mixed by the following weight ratio of raw materials: basalt, 85%; temperature-sensitive anticoagulant 5%, model is inner dicing antifreeze, using temperature sensing nanomaterials to ordinary The salt anticoochastic anticogenic acid is made of coating, thereby achieving anti-condensive ice with different release rates, thereby extending the use period, and relatively low in cost; 1% of the filler, ...

Embodiment 2

[0092] The road surface of the present embodiment is not good in survey, and the pavement surface is leaned, and the asphalt aging is severe. The original road surface asphalt is delayed at 10 ° C. The softening point is 10 ° C, which is increased by 10 ° C. Pre-spraying agent is sprayed before the ice cohesial wear layer.

[0093] The maintenance construction method of the anticoagulant wear layer asphalt pavement of the present embodiment is substantially the same, and the difference is that the anticoagulant abrasive layer and the formulation of the percolator employed are different.

[0094] The anticoagulant ice abrasive layer of the present embodiment is formulated from the following weight ratio of raw materials: 88% special assembly of anti-coagulation wear layer; 12% of the anticoagulant abrasive layer dedicated to 12%.

[0095] Among them, the anti-codble wear layer special collector is mixed by the following weight ratio of raw materials: 90% basal; 3% of the temperature-...

Embodiment 3

[0099] The road surface of the present embodiment is not good to survey. Although the road surface layer asphalt is slightly aging, there is a capillary crack in the road surface, so it is necessary to spray the permeability prevention agent before adding the anti-codble wear layer.

[0100] The maintenance construction method of the anticoagulant wear layer asphalt pavement of the present embodiment is substantially the same, and the difference is that the anticoagulant abrasive layer and the formulation of the percolator employed are different.

[0101] The anticoagulant wear layer of the present embodiment is formulated from the following weight ratio of the raw material mixture: 92% of the anticoagulant wear layer dedicated; anti-coagulating abrasive layer special emulsified asphalt 8%.

[0102] Among them, the anti-codble wear layer special collector is mixed by the following weight ratio of raw material: 95% basal; temperature-sensing anticoagulant 1%, model is inner dicing ...

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Abstract

The invention discloses an anti-freezing wearing layer and a maintenance construction method of an asphalt pavement. The anti-freezing wearing layer comprises special aggregate for the anti-freezing wearing layer and special emulsified asphalt for the anti-freezing wearing layer, and the special aggregate for the anti-freezing wearing layer comprises basalt, a temperature-sensitive anti-freezing agent, filler, Portland cement and water; the special emulsified asphalt for the anti-freezing wearing layer comprises petroleum matrix asphalt, an emulsifier, a modifier, an emulsified asphalt charge regulator, an emulsified asphalt viscosity regulator and water. The special aggregate for the anti-freezing wearing layer is added with the temperature-sensitive anti-freezing agent, effective components can be normally released in a low-temperature environment in winter, the release rate of the effective components in high-temperature seasons in spring, summer and autumn is greatly reduced, the effect of the anti-freezing agent is guaranteed to the maximum extent, the service life is prolonged, meanwhile, the thickness of the anti-freezing wearing layer is small, the paving cost is relatively low, and the anti-freezing rigid requirement of the pavement in the service period can be met.

Description

Technical field [0001] The present invention relates to the field of asphalt road maintenance, in particular, to a condensing ice abrasive layer and a maintenance construction method of asphalt pavement. Background technique [0002] Extreme weather such as snowfall and frozen rain in the southern area of ​​my country is extremely easy to make road area snow ciege, affect road surface anti-slip, hindering smooth roads and driving safety. In particular, road conese will greatly reduce the friction coefficient between vehicle tires and pavements, thereby reducing its anti-sliding capacity, which not only reduces the safety of roads, not only malignant traffic accidents, but also damage roads and their affilute structures. , When serious, there is even caused traffic interruption, the lives and production of the people cannot be carried out normally, and even endanger the lives and property of the people. Therefore, scientific and effective road inhibition of ice and snow technology...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/35E01C11/00C04B28/04C04B111/20
CPCE01C7/353E01C11/005C04B28/04C04B2111/0075C04B2111/2038C04B2111/20C04B14/28C04B14/14C04B24/36C04B24/38C04B18/22C04B2103/601C04B2103/0068C04B22/124
Inventor 蔡玉斌屠文杰
Owner 江苏瑞文戴尔交通科技有限公司
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