Drainage asphalt pavement structure and construction method thereof

Abstract

The invention discloses a drainage asphalt pavement structure and a construction method thereof. The drainage asphalt pavement structure sequentially comprises a soil base, a water-resisting layer, adrainage cushion layer, a reinforced gravel base layer, an assembly type interlocking water storage layer, a permeable transition layer, a permeable stress absorption layer and a drainage asphalt pavement layer from bottom to top. The reinforced gravel base layer is formed by combining honeycomb geocells and gravels; the assembly type interlocking water storage layer is formed by combining an assembly type concrete structure and a rubble layer; and the drainage asphalt surface layer adopts PAC-10 or PAC-13 and is formed by mixing, paving and rolling high-viscosity modified asphalt, 0.2-0.6% ofRC-GUARD<R> modified polypropylene monofilament fibers, coarse aggregate, fine aggregate, filler, 0.15-0.2% of an anti-stripping agent and 0.25-0.4% of an anti-rutting agent. The problems that the existing drainage asphalt pavement is easy to peel, loosen and block, and the pavement structure is low in water storage, water retention and durability are effectively solved, and the drainage asphaltpavement structure can be widely applied to parking lots, squares, park roads and light load roadways.

Description

technical field [0001] The invention relates to the field of pavement construction, in particular to a permeable asphalt pavement structure and a construction method thereof. Background technique [0002] With the rapid development of social economy, the design speed of roads and the actual driving speed of vehicles are constantly increasing, and the public has put forward higher requirements for driving characteristics, especially road safety in rainy days. Drainage asphalt pavement came into being. It is paved with asphalt concrete with a skeleton void structure. The void ratio of the mixture is generally between 18% and 25%. There are abundant interconnected voids inside, which can quickly drain the rainwater from the road surface and improve driving safety in rainy days. [0003] However, there are still many problems in the existing drainage asphalt pavement: [0004] (1) For drainage asphalt mixture, when the internal pores of the mixture are filled with residual wat...

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Problems solved by technology

[0007] Therefore, in order to solve the above-mentioned deficiencies, the present invention provides a permeable asphalt pavement structure and its construction method here, to solve the problem that the existing drainage asphalt pavement is prone to peeling, loosening and clogging, and the pavement structure has low water storage and durability. question

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