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Bituminous pavement provided with lattice structure transition compound layer and construction method thereof

A technology of asphalt pavement and lattice structure, which is applied to the coagulation pavement, roads, roads and other directions of on-site paving, can solve problems such as reflection cracks in asphalt pavement, reduce maintenance, optimize design thickness, improve stability and bearing capacity Effect

Inactive Publication Date: 2013-05-22
HEFEI UNIV OF TECH
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Problems solved by technology

[0012] Aiming at the disease phenomenon that semi-rigid base asphalt pavement is prone to reflective cracks, the present invention proposes to pave a transition composite layer of pavement with a lattice structure of rubber particles between the semi-rigid base and the asphalt surface layer, and absorb the stress of rubber asphalt from bottom to top. Layer and dot matrix sandwich membrane composition

Method used

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  • Bituminous pavement provided with lattice structure transition compound layer and construction method thereof
  • Bituminous pavement provided with lattice structure transition compound layer and construction method thereof
  • Bituminous pavement provided with lattice structure transition compound layer and construction method thereof

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Embodiment Construction

[0047] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0048] see Figure 1-5d , which shows an embodiment of a lattice sandwich coil according to the invention. The dot-matrix sandwich coil is divided into three layers. From top to bottom, it is geotextile 1 coated with petroleum asphalt, cylindrical rubber particles 2 and geotextile 3 coated with rubber asphalt. The array is arranged between the geotextile 1 coated with petroleum asphalt and the geotextile 3 coated with rubber asphalt, and is in close contact with them. The columnar rubber particles are periodically and regularly arranged between the two layers of geotextiles....

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Abstract

The invention relates to a bituminous pavement provided with a lattice structure transition compound layer. The lattice structure transition compound layer is arranged between a semi-rigid base layer (7) and a bituminous concrete surface layer (4) of the bituminous pavement; and the lattice structure transition compound layer comprises a rubber bituminous stress absorption layer (5) and a lattice sandwich coil which is tightly adhered above the rubber bituminous stress absorption layer. The lattice sandwich coil sequentially comprises a piece of geotextile (1) for covering petroleum bitumen, columnar rubber grains (2) and a piece of geotextile (3) covering with rubber bitumen. According to the bituminous pavement disclosed by the invention, the current problems of stacking a plurality of wasted tires and pollutants are solved according to the reduction of the bituminous pavement or the delaying of the generation of reflection cracks, and the environmental friendliness and the resource recycling are integrated. The bituminous pavement can be used for the technical field of road engineering.

Description

technical field [0001] The invention relates to an asphalt pavement with a transition composite layer of a lattice structure and a construction method thereof, which is used to prevent the cracks of a semi-rigid base from being reflected to an asphalt concrete surface, and belongs to the technical field of road engineering. Background technique [0002] Semi-rigid base has been widely used in the design of flexible pavement base in my country due to its advantages of high strength and rigidity, good water stability, and convenient material selection nearby. The semi-rigid base will inevitably produce cracks, but the semi-rigid base has poor deformation resistance and is sensitive to temperature and humidity changes, so it is easy to produce dry shrinkage cracks and temperature shrinkage cracks. Once the semi-rigid base layer cracks, under the repeated action of road traffic load stress and variable temperature stress, stress concentration occurs at the connection between the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/32
Inventor 董满生鹿婧田雪飞侯超群逄焕平
Owner HEFEI UNIV OF TECH
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