Novel asphalt concrete pavement structure

Abstract

The invention discloses a road pavement structure, and particularly relates to a novel asphalt concrete pavement structure. The novel asphalt concrete pavement structure has high quick-drying and water drainage performance, is obvious in supporting effect and has certain collapsing preventive performance. A mortar bonding layer covers a base layer, cement concrete prefabricated blocks arranged in parallel and at intervals are arranged on the mortar bonding layer, the long edges of the cement concrete prefabricated blocks are perpendicular to the stretching direction of a road, a rubble layer is padded in clearances between adjacent cement concrete prefabricated blocks and covers the cement concrete prefabricated blocks, a slurry seal layer, a coarse grain type asphalt concrete layer, a medium grain type asphalt concrete layer and an asphalt mastic rubble mixed material layer cover the rubble layer from bottom to top in sequence, the base layer is a cement stabilizing aggregate base layer, and the rubble layer comprises rubbles and aggregate chips padded in the clearances among the rubbles.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a novel asphalt concrete pavement structure. Background technique [0002] As we all know, asphalt concrete pavement is a road paved with asphalt concrete, which is widely used in the field of road engineering because of its good shape and high construction and maintenance efficiency; the existing asphalt concrete pavement structure, usually from bottom to top It includes the base layer, the slurry seal layer combined with the penetrating oil, and the surface layer in sequence. The surface layer includes the lower layer of coarse-grained asphalt concrete, the middle layer of medium-grained asphalt concrete, and the upper layer of fine-grained asphalt concrete from bottom to top; the base layer It mainly bears the vertical force of the wheel transmitted by the surface layer, and spreads it to the cushion layer and soil foundation below. The slurry seal layer is a certain ...

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Problems solved by technology

[0002] As we all know, asphalt concrete pavement is a road paved with asphalt concrete, which is widely used in the field of road engineering because of its good shape and high construction and maintenance efficiency; the existing asphalt concrete pavement structure, usually from bottom to top It includes the base layer, the slurry seal layer combined with the penetrating oil, and the surface layer in sequence. The surface layer includes the lower layer of coarse-grained asphalt concrete, the middle layer of medium-grained asphalt concrete, and the upper layer of fine-grained asphalt concrete from bottom to top; the base layer It mainly bears the vertical force of the wheel transmitted by the surface layer, and spreads it to the cushion layer and soil foundation below. The slurry seal layer is a certain thickness of asphalt paved on the base layer to close the surface gap and prevent water intrusion. Thin layer of mixed material and penetrating layer oil are formed by spraying liquid petroleum asphalt, emulsified asphalt, etc. The effect of the vertical force of the wheel and spread it to the base; this kind of asphalt concrete pavement structure can be better used in urban road traffic, but in mountainous roads, especially mountainous roads in plateau areas, due to the changing , especially in summer, the rainfall is relatively large, which requires the road to have high quick-drying and drainage performance, and also has a certain function of preventing road collapse. However, the asphalt concrete pavement structure in the prior art is difficult to meet this requirement

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