Permeable asphalt and improved construction method thereof

A technology of permeable asphalt and construction methods, applied in the direction of building components, pavement details, building insulation materials, etc., to achieve the effects of improving stability, enhancing road surface stability, and reducing water erosion

Pending Publication Date: 2021-12-21
SUZHOU GOLD MANTIS GREEN LANDSCAPE LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the maintenance cycle of the overall permeable asphalt pavement can be improved, the maintenance cost can be reduced, the service life of the pavement can be extended, and the safety and aesthetics of the entire network can be improved, which solves the problems mentioned in the above-mentioned background technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A permeable asphalt and its improved construction method, comprising the following steps:

[0027] 1) Compound modification of asphalt with rubber powder and HVA high-viscosity modifier to improve the cohesiveness of asphalt;

[0028] 2) Heat the permeable asphalt to 180°C to make it in a flowing state, and add 6% of fine particle HVA high viscosity modifier to it;

[0029] 3) rubber powder prepared from waste tires with a particle size of 30 meshes, and mixed with permeable asphalt mixture in a proportion of 5%;

[0030] 4) Through the experimental tests of the penetration, ductility, softening point and 60°C dynamic viscosity of each modified sample, the influence of the two on the bonding performance was analyzed, and the best micro-particle HVA high-viscosity modification was obtained. The mixing ratio of the additive and the particle size and ratio of the rubber powder.

[0031] In view of the poor temperature stability of traditional drainage asphalt pavement, w...

Embodiment 2

[0037] 1) Compound modification of asphalt with rubber powder and HVA high-viscosity modifier to improve the cohesiveness of asphalt;

[0038] 2) Heat the permeable asphalt to 180°C to make it in a flowing state, and add 10% of the fine particle HVA high-viscosity modifier to it;

[0039] 3) Rubber powder prepared from waste tires with a particle size of 60 meshes is used, and mixed with permeable asphalt mixture in a ratio of 15%;

[0040]4) Through the experimental tests of the penetration, ductility, softening point and 60°C dynamic viscosity of each modified sample, the influence of the two on the bonding performance was analyzed, and the best micro-particle HVA high-viscosity modification was obtained. The mixing ratio of the additive and the particle size and ratio of the rubber powder.

[0041] In view of the poor temperature stability of traditional drainage asphalt pavement, which is easy to be brittle in winter and easy to soften in summer, the temperature stability...

Embodiment 3

[0047] 1) Compound modification of asphalt with rubber powder and HVA high-viscosity modifier to improve the cohesiveness of asphalt;

[0048] 2) Heat the permeable asphalt to 180°C to make it in a flowing state, and add 12% of fine particle HVA high viscosity modifier to it;

[0049] 3) rubber powder prepared from waste tires with a particle size of 90 meshes, and mixed with permeable asphalt mixture in a proportion of 20%;

[0050] 4) Through the experimental tests of the penetration, ductility, softening point and 60°C dynamic viscosity of each modified sample, the influence of the two on the bonding performance was analyzed, and the best micro-particle HVA high-viscosity modification was obtained. The mixing ratio of the additive and the particle size and ratio of the rubber powder.

[0051] In view of the poor temperature stability of traditional drainage asphalt pavement, which is easy to be brittle in winter and easy to soften in summer, the temperature stability of as...

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PUM

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Abstract

The invention relates to the technical field of asphalt pavement construction methods, and discloses permeable asphalt and an improved construction method thereof.The permeable asphalt is characterized in that 1, rubber powder and an HVA high-viscosity modifier are used for conducting composite modification on asphalt, and the cohesiveness of the asphalt is improved; and 2) the permeable asphalt is heated to 180 DEG C to enable the permeable asphalt to be in a flowing state, and respectively 6%, 8%, 10% and 12% of micro-particle HVA high-viscosity modifiers are added into the permeable asphalt. According to the permeable asphalt and the improved construction method thereof, the influence of water damage on the service life of an asphalt pavement can be reduced, the service life of the pavement can be greatly prolonged, the viscosity of the asphalt can be greatly improved by doping the micro-particle HVA modifier and a proper amount of rubber powder, and the high and low temperature resistance and the fatigue resistance of an asphalt mixture can be comprehensively improved; and the use stability of the permeable asphalt pavement in a high-temperature region and a cold region is improved, and the junked tires are combined with the permeable asphalt pavement, so that the pavement performance can be improved, and the environmental pressure caused by the junked tires can be relieved.

Description

technical field [0001] The invention relates to the technical field of asphalt pavement construction methods, in particular to permeable asphalt and its improved construction method. Background technique [0002] Water-based asphalt pavement is a pavement that uses large-pore mixture as the surface layer, and the middle and lower asphalt surface layers use dense mixture; [0003] This kind of pavement can effectively reduce noise, improve the skid resistance of the pavement, and prevent driving water fog and water drift. At the same time, the surface texture of this pavement is relatively rough, which can reduce the diffuse reflection of sunlight during the day and light at night, and reduce glare. adverse effects. It is precisely because of these characteristics of permeable asphalt pavement that this kind of pavement has been widely used. However, the existing ordinary permeable asphalt pavement has poor temperature stability, is easy to be brittle in winter and easy to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L19/00C08L67/00C08K7/26E01C11/16E01C11/22
CPCC08L95/00E01C11/226E01C11/165C08L2205/16C08L19/003C08L67/00C08K7/26
Inventor 毕士友张默文李启涛晏黎东卢莉莉王雨婷李正功王子豪
Owner SUZHOU GOLD MANTIS GREEN LANDSCAPE LIMITED
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