Method for lap jointing of longitudinal cold joints of asphalt concrete pavement

A kind of asphalt concrete, vertical technology, applied in the seam treatment of asphalt concrete pavement, the field of longitudinal cold joint lap joint of asphalt concrete pavement, can solve the problems of difficult treatment, cracks and water leakage at the joints, and achieve the guarantee Driving comfort, ensuring driving safety, and the effect of simple and easy method

Inactive Publication Date: 2017-11-10
CCCC TUNNEL ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the differences in compactness, plasticity, temperature and many other indicators, the two road surfaces cannot be well formed as a whole, and cracks, water leakage and other diseases are prone to occur at the joints, which may affect the driving comfort, safety and road use in the future. impact on lifespan
Longitudinal cold seams are more prone to problems and more difficult to deal with due to the long overlap length

Method used

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  • Method for lap jointing of longitudinal cold joints of asphalt concrete pavement
  • Method for lap jointing of longitudinal cold joints of asphalt concrete pavement
  • Method for lap jointing of longitudinal cold joints of asphalt concrete pavement

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Embodiment Construction

[0034] A method for lapping longitudinal cold joints of asphalt concrete pavement, characterized in that: the method includes the following processing steps:

[0035] 1) if figure 1 As shown, the edge of the half pavement 1 laid in advance is broken: use a ruler 11 to measure the insufficient part of the road surface thickness, and plan the insufficient thickness part;

[0036] 2) if figure 2 As shown, the overlapping joints are coated with sticky layer oil: apply asphalt sticky layer oil 6 on the rough facade after the edge of the previously laid half pavement 1 has been manually planed off and on the surface of the lower bearing layer covered by the planed material;

[0037] 3) if image 3 As shown, the paving of the second half of the pavement and the lapping of the mixture: when paving the second half of the pavement with a paver, the newly paved pavement mixture is lapped with the previously laid half of the pavement, relying on the high temperature of the newly paved ...

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Abstract

The invention discloses a method for lap jointing of longitudinal cold joints of an asphalt concrete pavement. The method comprises the steps of breaking away the edge of a semi-range pavement laid in advance, tack coat brushing at a lap-joint joint part, latter semi-range pavement paving and mixture lap jointing, manual shaping of the joint part, joint initial pressing, normal grinding of a newly-laid semi-range pavement and joint pavement roughness treatment. The method for treating the longitudinal cold joints is reliable and convenient to use and achieves easy construction.

Description

technical field [0001] The invention relates to the technical field of building paving, in particular to the joint treatment of asphalt concrete pavement, in particular to a method for lapping longitudinal cold joints of asphalt concrete pavement. Background technique [0002] my country currently has a large number of asphalt concrete roads, from high-grade national highways to county and township roads in some developed areas, covering most provinces, cities, and counties (townships) in the country. Asphalt concrete pavement has been developing rapidly since the reform and opening up. As of 2014 statistics, among the paved roads in my country, the asphalt concrete road has reached about 950,000 kilometers, accounting for 19% of the total road mileage. [0003] Compared with cement pavement, asphalt concrete is a composite material that integrates elasticity, plasticity and viscosity. It has good mechanical properties. Both are more convenient and faster than cement roads...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/02
CPCE01C11/02
Inventor 潘立马翼孙建平
Owner CCCC TUNNEL ENG
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