Asphalt pavement prefabricated block and construction method for prefabricated asphalt pavement
A technology of asphalt pavement and construction method, which is applied to pavements, 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 problems, to achieve the effect of being conducive to construction in the rainy season, saving materials and prolonging the service life
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[0036] Example 1
[0037] The prefabricated asphalt pavement of the present invention is implemented on a certain expressway, and the pavement structure from bottom to top is: cement stabilized crushed stone base layer, hot asphalt bonding layer and asphalt pavement prefabricated blocks. The road width is 14m.
[0038] (1) Structure and size of precast blocks for asphalt pavement
[0039] The structure of the asphalt pavement prefabricated block from the bottom up is: a 20mm thick fiber-reinforced composite substrate, an adhesive layer and an asphalt surface layer. Among them, the adhesive layer on the board uses a spreading amount of 2.5kg / m 2 SBS modified asphalt and 10kg / m 2 The clean limestone gravel with a particle size of 9.5~13.6mm; the asphalt surface layer is 6cm thick AC-20C asphalt mixture, and the upper layer is 4cm thick AC-13C asphalt mixture.
[0040] The plane size of the asphalt pavement prefabricated block is: length 10m, width 7m.
[0041] (2) Factory production of ...
Example Embodiment
[0053] Example 2
[0054] The prefabricated asphalt pavement of the present invention is implemented on a municipal road, and the pavement structure from bottom to top is: a graded gravel base layer, an emulsified asphalt bonding layer and an asphalt pavement prefabricated block. The road width is 20m.
[0055] (1) Structure and size of precast blocks for asphalt pavement
[0056] The structure of the asphalt pavement prefabricated block from the bottom up is: a 20mm thick fiber-reinforced composite substrate, an adhesive layer and an asphalt surface layer. Among them, the adhesive layer on the board uses a spreading 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 asphalt mixture, and the upper layer is 4cm thick AC-13C asphalt mixture.
[0057] The plane size of the asphalt pavement prefabricated block is: length 20m, width 10m.
[0058] (2) Factory production of prefabri...
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