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Asphalt pavement prefabricated block and construction method for prefabricated asphalt pavement

A technology of asphalt pavement and construction method, which is applied to pavement, roads, roads and other directions paved with prefabricated blocks, which can solve the problems of easy deformation and cracking during transportation and installation, difficulty in making large-sized prefabricated blocks, and shortening the service life of pavement and other issues, to achieve the effects of construction in the rainy season, saving materials and prolonging the service life

Active Publication Date: 2014-07-30
广州大象超薄路面技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of the disclosed patent "processing method of prefabricated asphalt concrete material" (CN101906746A) is that the provided prefabricated block is an asphalt prefabricated block without a rigid substrate lining, which is easy to deform and crack during transportation and installation, and is difficult to make Large size precast blocks
Moreover, prefabricated blocks need to be reheated when they are installed and spliced ​​at the project site, and the asphalt is easy to age, which shortens the service life of the pavement

Method used

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  • Asphalt pavement prefabricated block and construction method for prefabricated asphalt pavement

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Effect test

Embodiment 1

[0037] The prefabricated asphalt pavement of the present invention is implemented on a certain expressway, and the pavement structure is from bottom to top: cement stabilized crushed stone base, hot asphalt bonding layer and asphalt pavement prefabricated block. The road width is 14m.

[0038] (1) Structure and size of asphalt pavement prefabricated block

[0039] The structure of the asphalt pavement prefabricated block is as follows from the bottom to the top: a substrate of fiber reinforced composite material with a thickness of 20 mm, an adhesive layer on the board and an asphalt surface layer. Among them, the adhesive layer on the board adopts a sprinkling amount of 2.5kg / m 2 SBS modified asphalt and 10kg / m 2 Clean limestone gravel with a particle size of 9.5~13.6mm; the asphalt surface layer is AC-20C asphalt mixture with a thickness of 6cm, and the upper layer is AC-13C asphalt mixture with a thickness of 4cm.

[0040] The plane size of the asphalt pavement prefabric...

Embodiment 2

[0054]The prefabricated asphalt pavement of the present invention is implemented on a municipal road, and the pavement structure is from bottom to top: graded crushed stone base, emulsified asphalt adhesive layer and asphalt pavement prefabricated block. The road width is 20m.

[0055] (1) Structure and size of asphalt pavement prefabricated block

[0056] The structure of the asphalt pavement prefabricated block is as follows from the bottom to the top: a substrate of fiber reinforced composite material with a thickness of 20 mm, an adhesive layer on the board and an asphalt surface layer. Among them, the adhesive layer on the board adopts a sprinkling amount of 2.5kg / m 2 SBS modified asphalt and 10kg / m 2 Clean limestone gravel with a particle size of 9.5~13.6mm; the lower layer of asphalt is 6cm thick AC-20C type asphalt mixture, and the upper layer is 4cm thick AC-13C type asphalt mixture.

[0057] The plane size of the asphalt pavement prefabricated block is: length 20m...

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Abstract

The invention discloses a prefabricated asphalt pavement block and a construction method for the prefabricated asphalt pavement; a prefabricated asphalt pavement block is characterized in that it comprises a base plate (1), an adhesive layer (2) and an asphalt surface layer ( 3) The shape of the asphalt pavement prefabricated block is a cuboid, one side of the bottom surface is 5m~20m long, and the other side is 1m~20m long. The invention adopts the base plate of fiber-reinforced composite material whose thermal expansion coefficient is close to that of cement concrete and steel plate to reinforce the bottom surface of the asphalt layer, which improves the anti-fatigue and anti-reflection crack performance of the asphalt surface layer; effectively prevents rainwater from flowing under the asphalt surface layer seepage and erosion of the underlying bearing layer; for steel decks, the stiffness of the bridge deck can be improved, especially for steel decks with insufficient thickness of steel plates, which can play a reinforcing role, thereby reducing the thickness of the asphalt surface layer, and avoiding problems caused by insufficient stiffness of the steel deck. Cracking, falling off and other damages of the asphalt pavement layer.

Description

technical field [0001] The invention relates to a road pavement structure and a construction method thereof. In particular, the invention relates to a prefabricated asphalt pavement block and a construction method for the prefabricated asphalt pavement. Background technique [0002] Compared with on-site asphalt pavement, prefabricated asphalt pavement has many advantages such as standardization, factory production, good quality control, shortened construction period and rainy season construction. [0003] The disadvantage of the disclosed patent "processing method of prefabricated asphalt concrete material" (CN101906746A) is that the provided prefabricated block is an asphalt prefabricated block without a rigid substrate lining, which is easy to deform and crack during transportation and installation, and is difficult to make Large size prefabricated blocks. Moreover, prefabricated blocks need to be reheated when they are installed and spliced ​​at the project site, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C5/22E01C19/52
Inventor 葛折圣黄明波章权许薛军
Owner 广州大象超薄路面技术开发有限公司
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