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Drainability bituminous pavement

A technology of drainage asphalt and modified asphalt, which is applied to the coagulation pavement, roads, roads and other directions laid on site, can solve the problems of poor fatigue resistance, poor stability and short service life of drainage asphalt pavement. Achieve the effect of improving fatigue crack resistance, improving road performance, and overcoming bonding ability

Inactive Publication Date: 2017-04-26
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In a word, the problems existing in the prior art are: drainage asphalt pavement has poor fatigue resistance, cracking, looseness, and flying phenomenon, insufficient stability, and short service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] like figure 1 The new durable drainage asphalt pavement structure shown, the pavement structure consists of permeable asphalt mixture PAC-13 upper layer, seal layer, asphalt mixture Superpave-20 middle surface layer, adhesive layer and asphalt mixture arranged in sequence from top to bottom The lower layer of Superpave-25.

[0051] Wherein, the thickness of the upper layer of the permeable asphalt mixture PAC-13 is 40.0mm; the thickness of the middle layer of the asphalt mixture Superpave-20 is 60.0mm; the thickness of the lower layer of the asphalt mixture Superpave-25 is 80.0mm.

[0052] Among them, the upper layer of the permeable asphalt mixture PAC-13 is paved by mixing high-viscosity modified asphalt, basalt fiber and the first mineral material with a mass ratio of 4.6:0.3:100. The void ratio of the mixture is The nominal maximum particle size of the aggregate is 13.2mm, and the basalt fiber used is chopped basalt fiber with a length of 6.0mm; Agent TPS and SBS ...

Embodiment 2

[0061] Such as figure 1 The new durable drainage asphalt pavement structure shown, the pavement structure consists of permeable asphalt mixture PAC-13 upper layer, seal layer, asphalt mixture Superpave-20 middle surface layer, adhesive layer and asphalt mixture arranged in sequence from top to bottom The lower layer of Superpave-25.

[0062] Wherein, the thickness of the upper layer of the permeable asphalt mixture PAC-13 is 40.0mm; the thickness of the middle layer of the asphalt mixture Superpave-20 is 60.0mm; the thickness of the lower layer of the asphalt mixture Superpave-25 is 80.0mm.

[0063] Among them, the upper layer of the permeable asphalt mixture PAC-13 is paved by mixing high-viscosity modified asphalt, basalt fiber and the first mineral material with a mass ratio of 4.7:0.32:100. The void ratio of the mixture is The nominal maximum particle size of the aggregate is 13.2mm, and the basalt fiber used is chopped basalt fiber with a length of 6.0mm; Agent TPS and ...

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Abstract

The invention discloses a drainability bituminous pavement. The drainability bituminous pavement comprises an upper surface layer (1), a middle surface layer (3) and a lower surface layer (5), a sealing layer (2) is spread between the middle surface layer (3) and the upper surface layer (1), a bonding layer (4) is spread between the middle surface layer (3) and the lower surface layer (5), the upper surface layer (1) is a porous asphalt mixture PAC-13, the middle surface layer (3) is an asphalt mixture Superpave-20, and the lower surface layer (5) is the asphalt mixture Superpave-25. The drainability bituminous pavement has long usage life.

Description

technical field [0001] The invention belongs to the technical field of multi-layer pavement laid on site, in particular to a drainage asphalt pavement with long service life. Background technique [0002] Drainage asphalt pavement has been widely used and researched due to its distinctive characteristics such as large structural voids, obvious pavement drainage effect, good anti-skid effect, high safety, obvious noise reduction effect, and good resistance to high temperature deformation. [0003] However, due to the large interconnected gaps, the drainage asphalt pavement is easily damaged by water and peels off, resulting in loose pavement and other damage. At the same time, because sunlight and air are easy to penetrate into the mixture, the aging of asphalt is accelerated. Therefore, countries all over the world attach great importance to the research of asphalt mixture binder. In some countries with relatively low temperature, such as the United Kingdom, some studies b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18C04B26/26C04B38/00
CPCE01C7/18C04B26/26C04B2111/0075
Inventor 肖鹏陆如洋酒雪洋夏炎吴正光
Owner YANGZHOU UNIV
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