CN201400841Y

CN201400841Y - Continuously reinforced concrete composite asphalt pavement structure

Info

Publication number: CN201400841Y
Application number: CN2009200628640U
Authority: CN
Inventors: 刘朝晖; 秦仁杰; 赵峰军; 谢军; 周科峰
Original assignee: Changsha University of Science and Technology
Current assignee: Changsha University of Science and Technology
Priority date: 2009-01-09
Filing date: 2009-01-09
Publication date: 2010-02-10
Anticipated expiration: 2019-01-09

Abstract

A continuously reinforced concrete composite asphalt pavement structure comprises an asphalt concrete surface layer, a bonding layer, a continuously reinforced concrete layer, and a base layer; and the continuously reinforced concrete layer, the bonding layer and the asphalt concrete surface layer are sequentially laid on the base layer. The composite asphalt pavement structure organically combines the high strength of the continuously reinforced concrete and the travelling comfort of the asphalt concrete together, so as to meet the requirements for ensuring fast and safe road transportation,comfortable use quality and reliable performances considering the combined effects of travelling load and natural factors. The utility model has the advantages of high structural intensity, high loading capacity, good travelling comfort, long service life, favorable economical efficiency and durability, and simple construction technology, combines the advantages of asphalt pavement and concrete pavement together, and can realize mass production. Therefore, the composite asphalt pavement structure is a novel pavement structure with ingenious conception, which is particularly suitable for serving as the pavement structure for heavy-load highways.

Description

A kind of continuous reinforcement concrete combined type asphalt pavement structure

Technical field

The utility model discloses a kind of combined type asphalt roads road structure, be meant a kind of continuous reinforcement concrete combined type asphalt pavement structure especially, relate to the road surface structure technical field.

Background technology

At present, China main road surface of adopting in highway construction is that asphalt concrete pavement and cement concrete pavement asphalt concrete pavement generally are made up of individual layer or double-deck or three layers of bituminous mixture and basic unit; Cement concrete pavement is generally formed the asphalt concrete pavement surfacing by cement concrete slab layer and basic unit, and not have the seam flexibility good, can satisfy the driving requirement preferably, can improve the speed of a motor vehicle, reduce oil consumption, have advantages such as tangible road-ability, abrasion resistance, but an asphalt price height, maintenance of surface expense height, service life are shorter, be subjected to the restriction of bituminous material response to temperature, the intensity of asphalt surface course structure is subjected to influence of temperature change bigger; Cement concrete pavement rigidity is big, the diffusion weight bearing power is strong, good stability, resistance to compression, anti-folding, abrasion resisting performance are good, durable, long service life, but it also has very important shortcoming: seam is more, be easy to generate diseases such as purt mud, faulting of slab ends, the stationarity and the comfortableness of influence driving, maintenance and maintenance are inconvenient; Therefore, new road structure and material are all constantly being explored in countries in the world.

Summary of the invention

The purpose of this utility model be to overcome the deficiency of prior art and a kind of structural strength height is provided, lifting capacity is strong, road-ability good, the continuous reinforcement concrete combined type asphalt pavement structure of long service life, economy and good endurance.

A kind of continuous reinforcement concrete of the utility model----combined type asphalt pavement structure is to adopt following proposal to realize: comprise asphalt concrete pavement, tack coat, the continuous reinforcement layer of concrete, basic unit is equipped with continuous reinforcement layer of concrete, tack coat, asphalt concrete pavement successively in the described basic unit.

In the utility model, described tack coat is a distributing asphalt on the continuous reinforcement layer of concrete behind surface nakedization or the plucking, spills the cloth rubble again and constitutes.

In the utility model, described tack coat also can be a distributing asphalt on the continuous reinforcement layer of concrete behind surface nakedization or the plucking, then, geotextiles is sticked on the pitch, makes pitch soak into geotextiles, spills the cloth rubble again and constitute on geotextiles.

The utility model adopts the said structure form, the road-ability of concrete high strength of continuous reinforcement and bituminous concrete is organically combined, utilize the continuous reinforcement layer of concrete to bear traffic loading as the bearing course on road surface, asphalt concrete layer mainly plays the functional layer effect, satisfy guarantee under traffic load and the natural cause acting in conjunction highway transportation fast, requirement on the safety, comfortable using character performance.Compared with prior art, have following advantage:

1, does the basis with the continuous reinforcement concrete, rigid element is as the main bearing structure on road surface, for surface layer provides reliable support, plate bottom stress, flexure, rut are reduced, and the corresponding minimizing flexible cladding desired thickness of energy, thereby overcome in the prior art, the simple continuous reinforcement concrete that adopts exists seam more as the road surface, be easy to generate diseases such as purt mud, faulting of slab ends, the stationarity and the comfortableness of influence driving, maintenance and the inconvenient shortcoming of maintenance.

2, make surface layer with bituminous concrete, can improve the road surface comfortableness, reduce noise, alleviate the impact of load, reduce the load fatigue stress and the temperature fatigue stress of rigid surface, and be convenient to maintenance rigid element; Thereby, overcome in the prior art, adopt the intensity of asphalt surface course structure to be subjected to the bigger defective of influence of temperature change merely.

3, adopt bituminous concrete to make surface layer, the continuous reinforcement concrete is done the basis, under the situation that guarantees roadbed overall construction intensity and road surface comfortableness, low noise, can reduce the thickness of asphalt concrete pavement, thereby, can reduce the dependence of the petroleum resources that China is relatively lacked; And the coagulating cement earth foundation can make full use of local material and resource, as cement, flyash, rubble, reinforcing bar etc., promotes local economic development.

In sum, the utility model structural strength height, lifting capacity is strong, road-ability good, long service life, economy and good endurance, construction technology is simple, the advantage that integrates flexible pavement and cement pavement, can realize large-scale production, be a kind of road structure of novel concept, be particularly suitable for road structure as heavily loaded traffic speedway.

Description of drawings

Accompanying drawing is the utility model structural representation.

In the accompanying drawing:

The 1-asphalt concrete pavement, the 2-tack coat,

3-continuous reinforcement layer of concrete, 4-basic unit.

The specific embodiment

For understanding the utility model better, the utility model is done to describe further below in conjunction with accompanying drawing.

Referring to accompanying drawing, the utility model comprises asphalt concrete pavement 1, tack coat 2, continuous reinforcement layer of concrete 3, basic unit 4; Be equipped with continuous reinforcement layer of concrete 3, tack coat 2, asphalt concrete pavement 1 in the described basic unit 4 successively; Described tack coat 2 is distributing asphalts on the continuous reinforcement layer of concrete 3 behind surface nakedization or the plucking, spills the cloth rubble again and constitutes.

Another kind of embodiment of the present utility model is: described tack coat 2 is distributing asphalts on the continuous reinforcement layer of concrete 3 behind surface nakedization or the plucking, then, geotextiles is sticked on the pitch, make pitch soak into geotextiles, on geotextiles, spill the cloth rubble again and constitute.

In the utility model, the structure of described asphalt concrete pavement 1, continuous reinforcement layer of concrete 3, basic unit 4, material composition and job practices are same as the prior art.

Claims

1, a kind of continuous reinforcement concrete combined type asphalt pavement structure, comprise asphalt concrete pavement, tack coat, continuous reinforcement layer of concrete, basic unit is characterized in that: be equipped with continuous reinforcement layer of concrete, tack coat, asphalt concrete pavement in the described basic unit successively.

2, a kind of continuous reinforcement concrete combined type asphalt pavement structure according to claim 1, it is characterized in that: described tack coat is a distributing asphalt on the continuous reinforcement layer of concrete behind surface nakedization or the plucking, spills the cloth rubble again and constitutes.

3, a kind of continuous reinforcement concrete combined type asphalt pavement structure according to claim 1 is characterized in that: described tack coat is to spill the cloth rubble to constitute on infiltration has the geotextiles of pitch.