Super adhering wearing layer roadway maintenance method

A wear layer, high-viscosity technology, applied in the field of preventive maintenance treatment, ultra-stick wear layer pavement maintenance, can solve the problems of long open traffic time, insufficient road surface adsorption, prone to peeling, etc., to improve the water sealing performance of the road surface, The effect of increasing pavement texture and friction coefficient and improving comprehensive mechanical strength

Inactive Publication Date: 2015-11-11
JSTI GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0002] Traditional preventive maintenance technologies include slurry seal, micro-surfacing, etc. However, after the construction of the slurry seal, the traffic time is too long, the adhesion to the original road surface is poor, and the thickness is thin, so it is only suitable for low traffic areas with small traffic volume. High-grade roads; while the micro-surface has no repairing effect on the cracks, cavities and other small defects of the old road surface, and the adsorption to the road surface is insufficient, which is prone to peeling

Method used

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  • Super adhering wearing layer roadway maintenance method
  • Super adhering wearing layer roadway maintenance method
  • Super adhering wearing layer roadway maintenance method

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Embodiment Construction

[0019] refer to figure 1 , the present invention super sticky wearing layer pavement maintenance method comprises the steps:

[0020] 1) Spray high-viscosity modified emulsified asphalt;

[0021] Spray the high-viscosity modified emulsified asphalt that meets the technical requirements evenly on the original road surface, and the amount of spraying is generally 0.15kg / m2 of pure asphalt 2 ~0.3kg / m 2 Control, high viscosity modified emulsified asphalt performance indicators are shown in Table 1 below.

[0022] Table 1 Test results of high viscosity modified asphalt

[0023]

[0024] 2) Preparation of super viscous wear layer mixture

[0025] Refer to attached figure 1 , the super-viscous wearing layer mixture used in this step is composed of coarse aggregate, fine aggregate, modified emulsified asphalt for mixing, fiber, water and filler, and the aggregate includes coarse aggregate and fine aggregate; coarse aggregate The specifications of the aggregate are 3~5mm and 5...

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Abstract

The invention relates to a super adhering wearing layer roadway maintenance method, which is suitable for preventive maintenance treatment of a road. The method comprises the following steps: (1) spraying high adhering modified emulsified asphalt; (2) preparing a super adhering wearing layer mixture; (3) paving the super adhering wearing layer mixture obtained in step (2) onto a roadway at a speed of 1.5-3.0km / h, closing traffic for 2-6hours, and then opening vehicle traffic. The water sealing performance, denoising performance and wear resistance of the roadway meet various preventive roadway maintenance requirements, and the anti-slide performance is excellent.

Description

technical field [0001] The invention relates to a road surface maintenance method for a super-sticky wearing layer, which is suitable for preventive maintenance treatment of roads. Background technique [0002] Traditional preventive maintenance technologies include slurry seal, micro-surfacing, etc. However, after the construction of the slurry seal, the traffic time is too long, the adhesion to the original road surface is poor, and the thickness is thin, so it is only suitable for low traffic areas with small traffic volume. High-grade roads; while the micro-surface has no repairing effect on the cracks, cavities and other small defects of the old road surface, and the adsorption to the road surface is insufficient, which is prone to peeling. Therefore, a new preventive maintenance technology is needed to comprehensively solve the problem, and super-sticky wear layer technology is a good choice. Contents of the invention [0003] The purpose of the present invention is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/35
Inventor 陈刚吴春颖赵喆童宽
Owner JSTI GRP CO LTD
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