Pavement structure and pavement

A technology for pavement structure and asphalt surface layer, applied in the field of road construction, can solve the problems of low-temperature cracking service life, hardening and brittle temperature difference between day and night, and asphalt pavement aging, etc., and achieve the effect of prolonging service life, delaying aging and improving strength.

Inactive Publication Date: 2018-11-20
CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The first object of the present invention is to provide a pavement structure to alleviate the rapid aging, hardening and brittleness of asphalt pavement caused by long-term exposure to strong ultraviolet rays in the prior art, as well as low-temperature cracking and shortened service life caused by large temperature differences between day and night Waiting for the question

Method used

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  • Pavement structure and pavement
  • Pavement structure and pavement
  • Pavement structure and pavement

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Experimental program
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Embodiment 1

[0031] Such as figure 1 - Figure 4 As shown, the pavement structure provided in this embodiment includes an asphalt surface layer 100, a lower seal layer 200, a permeable layer 300, and a base layer 400 arranged from top to bottom. The asphalt surface layer 100 includes an upper layer 101 and a lower layer 102.

[0032] The upper layer 101 includes asphalt concrete, and the asphalt concrete is mixed with polyester fiber and / or anti-ultraviolet aging agent.

[0033] The pavement structure provided in this embodiment includes an asphalt surface layer 100, a lower seal layer 200, a permeable layer 300, and a base layer 400 arranged from top to bottom. The asphalt surface layer 100 includes an upper layer 101 and a lower layer 102. The upper layer 101 includes asphalt concrete, and the asphalt concrete is mixed with polyester fiber or anti-ultraviolet aging agent or at the same time mixed with polyester fiber and anti-ultraviolet aging agent. The upper layer 101 is a structural layer...

Embodiment 2

[0054] The road surface provided in this embodiment has the road surface structure provided in the first embodiment.

[0055] The pavement provided in this embodiment has the pavement structure provided in Embodiment 1. The pavement structure includes an asphalt surface layer 100, a lower seal layer 200, a permeable layer 300, and a base layer 400 arranged from top to bottom. The asphalt surface layer 100 includes the top layer Layer 101 and layer 102 below. The upper layer 101 includes asphalt concrete, and the asphalt concrete is mixed with polyester fiber or anti-ultraviolet aging agent or at the same time mixed with polyester fiber and anti-ultraviolet aging agent. The upper layer 101 is a structural layer directly affected by natural factors in the pavement structure. Therefore, polyester fiber is added to the asphalt concrete of the upper layer 101, and the strength of the upper layer 101 can be increased through the polyester fiber to improve the pavement structure. The p...

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Abstract

The invention provides a pavement structure and a pavement, and relates to the technical field of road construction. The pavement structure comprises an asphalt surface layer, an under seal layer, a permeable layer and a base layer arranged from top to bottom, wherein the asphalt surface layer comprises an upper layer and a lower layer; the upper layer comprises asphalt concrete, and the asphalt concrete is doped with polyester fibers and / or an anti-ultraviolet aging agent. The pavement has the pavement structure. The pavement structure and the pavement alleviate the problems of rapid aging, hardening and brittleness of the asphalt pavement due to long-term irradiation of strong ultraviolet rays, temperature shrinkage cracking caused by large temperature difference and the like in the prior art.

Description

Technical field [0001] The invention relates to the technical field of road construction, in particular to a pavement structure and a road surface. Background technique [0002] The Qinghai-Tibet Plateau has high altitude, large temperature difference between day and night, large seasonal temperature difference, and strong ultraviolet radiation. These natural conditions will pose a serious threat to the durability of the pavement structure in the region. For example, long-term exposure to strong ultraviolet rays will accelerate the aging of the asphalt surface layer, make the asphalt surface layer quickly hardened and brittle, and greatly reduce the flexibility of the asphalt mixture; the large temperature difference between day and night makes the asphalt pavement easy to circulate in a large temperature difference Cracking occurs under the ground, which shortens the overall service life of the road structure. Due to the above reasons, many roads in plateau areas have suffered ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18E01C7/26
CPCE01C7/18E01C7/182E01C7/185E01C7/262
Inventor 陈飞王进勇陈天泉王祺唐智伦王火明伍杰李菁若戴天彤
Owner CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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