Surface function layer for improving use performance of cement pavement and construction method thereof

A technology of cement pavement and construction method, which is applied in the direction of roads, roads, and cohesive pavement paved on site, etc., which can solve the problems of overall inconspicuousness and project cost reduction, and achieve the reduction of temperature gradient distribution, less investment funds, and low price low effect

Inactive Publication Date: 2017-08-04
GUANGXI JIAOKE NEW MATERIALS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the thin pavement layer and the dual effects of climate and traffic environmental loads during use, high-performance modified asphalt materials are often used. Although the project cost has been reduced, it is not obvious overall

Method used

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  • Surface function layer for improving use performance of cement pavement and construction method thereof
  • Surface function layer for improving use performance of cement pavement and construction method thereof
  • Surface function layer for improving use performance of cement pavement and construction method thereof

Examples

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Embodiment Construction

[0032] A certain national highway K3121+600~K3144+250 has been in operation for more than ten years. The overall road condition is good, and there are local defects such as slab corner breaks, cross cracking and broken slabs, no continuous large-area broken slabs, no obvious staggered platforms, and the structure of the old road is stable. The strength and surface condition of the old concrete are good. In order to better ensure the smooth flow of regional transportation and promote the development of the local economy, according to the work arrangement of the Autonomous Region Highway Administration Bureau, it is planned to carry out road surface resurfacing for a total of 22.65 kilometers of sections K3121+600~K3144+250 of the Guigang City Highway Administration Bureau. Mid-change modification. Among them, the road section with good road conditions (K3131+900~K3134+000) has adopted scheme one (namely the present invention): 2cm ultra-thin rubber-modified asphalt overlay+rubb...

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Abstract

The invention discloses a surface function layer for improving the use performance of a cement pavement. The surface function layer comprises a rubber modified asphalt bonding layer and an ultrathin rubber modified asphalt overlay adhering to the rubber modified asphalt bonding layer; the rubber modified asphalt bonding layer is formed by rubber modified asphalt in a paving mode; the ultrathin rubber modified asphalt overlay is 2.0-2.5 cm in thickness; and the ultrathin rubber modified asphalt overlay is formed by rubber modified asphalt mixtures in a paving mode. The invention further discloses a corresponding construction method. Before preventive maintenance, the surface function layer is mainly applied to the cement pavement which is in service for about five years, the impact of driving vehicles and environment loads on the cement pavement can be relieved, the total life cycle cost of the cement pavement is reduced, damages like broken slabs, disengaging and faulting of slab ends generated during continuous operation are reduced, and accordingly the service life of a cement board is prolonged.

Description

technical field [0001] The invention belongs to the technical field of cement pavement performance improvement treatment, and in particular relates to a surface functional layer for improving the service performance of cement pavement and a construction method thereof. Background technique [0002] Cement pavement is a typical rigid pavement structure, which has the characteristics of high rigidity, high strength and long service life. Under the action of climate environment and traffic load, the service performance of cement pavement will decrease year by year. Therefore, the service performance of cement pavement is often linked to maintenance measures and timing. The maintenance of cement pavement generally adopts penetration or surface treatment technology, such as laying 4-6cm thick asphalt concrete pavement, etc., and then most of the treated pavement has problems such as poor performance, high maintenance frequency and high maintenance cost. In recent years, the ultr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/35C04B26/26
CPCC04B26/26C04B2111/0075E01C7/35C04B24/24C04B14/28C04B20/0076
Inventor 王礼根张洪刚谭继宗刘平黄慧陈华尹业豪
Owner GUANGXI JIAOKE NEW MATERIALS TECH CO LTD
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