CN202227220U

CN202227220U - Drainage type asphalt concrete road surface

Info

Publication number: CN202227220U
Application number: CN2011203358778U
Authority: CN
Inventors: 杨卫; 黄华华; 代彤
Original assignee: CHONGQING ZHONGSHE ENGINEERING DESIGN Co Ltd
Current assignee: ZHONGSHE ENGINEERING CONSULTING (CHONGQING) Co.,Ltd.
Priority date: 2011-09-07
Filing date: 2011-09-07
Publication date: 2012-05-23
Anticipated expiration: 2021-09-07

Abstract

The utility model discloses a drainage type asphalt concrete road surface, which comprises a base layer (1). A slurry seal layer (2) is covered on the base layer (1), a coarse grain type asphalt concrete lower surface layer (3) is covered on the slurry seal layer (2), and a medium grain type asphalt concrete medium surface layer (4) is covered on the coarse grain type asphalt concrete lower surface layer (3). The drainage type asphalt concrete road surface is characterized in that a waterproof bonding layer (5) is covered on the medium grain type asphalt concrete medium surface layer (4), and a multi-gap asphalt concrete upper surface layer (6) is covered on the waterproof bonding layer (5). The drainage type asphalt concrete road surface has the remarkable advantage of being capable of effectively improving road surface drainage effect.

Description

The drain type asphalt rigid pavement

Technical field

The utility model belongs to a kind of road structure, specifically, is a kind of drain type asphalt rigid pavement.

Background technology

Asphalt concrete pavement is mostly adopted on the modern urban road road surface; Its structure is as shown in Figure 1 from down to up, is followed successively by surface layer and the thick particulate formula of 4cm bituminous concrete upper layer in surface layer under basic unit, the thick slurry seal of 6mm～8mm, the thick coarse grain formula of the 7cm bituminous concrete, the thick middle grain formula bituminous concrete of 5cm.

Its shortcoming is: because the uppermost structure of road is a particulate formula dense-graded asphalt concrete upper layer, and particulate formula dense-graded asphalt concrete does not possess drain function, and the pavement of road drainage effect is poor, when rainwater is big, is easy to cause pavement of road ponding.

The utility model content

The purpose of the utility model provides a kind of drain type asphalt rigid pavement, can effectively improve the drainage effect of pavement of road.

For achieving the above object; The utility model road surface provides a kind of drainage asphalt concrete road surface, comprises basic unit, is coated with slurry seal above this basic unit; This is coated with surface layer under the coarse grain formula bituminous concrete above slurry seal; Surface layer in the grain formula bituminous concrete in being coated with above the surface layer under this coarse grain formula bituminous concrete, its key is: be coated with water-proof tack coat above the surface layer in the grain formula bituminous concrete in said, this is coated with many spaces bituminous concrete upper layer above water-proof tack coat.

Spray between said basic unit and the slurry seal priming oil is arranged.

Basic unit: mainly bear the effect of the wheel vertical force of surface layer transmission, and be diffused into the bed course and the soil matrix of below to it, basic unit also possibly receive surface layer infiltration and phreatic erosion.So need selection intensity higher, rigidity is bigger, and the material of enough water stabilities is arranged.

Slurry seal be for the confining surface space, prevent that moisture from invading and in basic unit making certain thickness bituminous mixture thin layer arranged.

Surface layer under the coarse grain formula bituminous concrete: bear the effect of the wheel vertical force of upper layer transmission, and be diffused into basic unit to it.

Surface layer in the middle grain formula bituminous concrete: bear the effect of the wheel vertical force of upper layer transmission, and be diffused into down surface layer and basic unit to it.

Under the coarse grain formula bituminous concrete in surface layer and the middle grain formula bituminous concrete surface layer be the interarea layer on road surface, be the major part that guarantees surface layer intensity.

Water-proof tack coat: get into surface layer in the road surface, following surface layer, basic unit and roadbed in order to prevent rainwater and road surface cleaning water, prevent that the road surface damage by water is bad, and play cementation, the material layer that strengthens pavement durability is set between road surface upper layer and middle surface layer.

Many spaces drain type asphalt concrete upper layer: adopt many spaces bituminous mixture to do the top layer; Rainfall is penetrated into the drain function layer; And through in the layer rainwater laterally being discharged; Thereby eliminated the road table moisture film that brings many driving detrimental effects, significantly improved rainy day traveling security, comfortableness.

Priming oil: be for asphalt surface course is combined well with non-bituminous material basic unit, spraying liquid petroleum bitumen, mulseal, coal tar pitch in basic unit and the thin layer that penetrates the substrate surface certain depth that forms.

The remarkable result of the utility model is: a kind of drain type asphalt rigid pavement is provided; Can rainfall be penetrated into many spaces drain type asphalt concrete upper layer; And through many spaces drain type asphalt concrete upper layer rainwater is laterally discharged, effectively improve the drainage effect of pavement of road.

Description of drawings

Fig. 1 is the road structure sketch map of existing road;

Fig. 2 is the structural representation of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing with specifically the utility model is done further explain.

As shown in Figure 2; A kind of drainage asphalt concrete road surface comprises basic unit 1, is coated with slurry seal 2 above this basic unit 1; This is coated with surface layer 3 under the coarse grain formula bituminous concrete above slurry seal 2; Surface layer 4 in the grain formula bituminous concrete in being coated with above the surface layer 3 under this coarse grain formula bituminous concrete is coated with water-proof tack coat 5 in the said middle grain formula bituminous concrete above the surface layer 4, this is coated with many spaces bituminous concrete upper layer 6 above water-proof tack coat 5.

Spray between said basic unit 1 and the slurry seal 2 priming oil is arranged.

Said drain type asphalt concrete upper layer 6 is many spaces drain type asphalt concrete upper layer.

Claims

1. drain type asphalt rigid pavement; Comprise basic unit (1); Be coated with slurry seal (2) above this basic unit (1); Be coated with surface layer (3) under the coarse grain formula bituminous concrete above this slurry seal (2); Surface layer (4) in the grain formula bituminous concrete in being coated with above the surface layer (3) under this coarse grain formula bituminous concrete is characterized in that: be coated with water-proof tack coat (5) above the surface layer (4) in the grain formula bituminous concrete in said, be coated with many spaces bituminous concrete upper layer (6) above this water-proof tack coat (5).

2. drain type asphalt according to claim 1 rigid pavement is characterized in that: spraying between said basic unit (1) and the slurry seal (2) has priming oil.

3. drain type asphalt according to claim 1 rigid pavement is characterized in that: said drain type asphalt concrete upper layer (6) is many spaces drain type asphalt concrete upper layer.