CN206752236U - Absorb the asphalt pavement structure of reflection crack stress - Google Patents
Absorb the asphalt pavement structure of reflection crack stress Download PDFInfo
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- CN206752236U CN206752236U CN201720602351.9U CN201720602351U CN206752236U CN 206752236 U CN206752236 U CN 206752236U CN 201720602351 U CN201720602351 U CN 201720602351U CN 206752236 U CN206752236 U CN 206752236U
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Abstract
The asphalt pavement structure of the present utility model for absorbing reflection crack stress, it is arranged to four-layer structure, 13 layers of SMA, 16 layers of AC, reflection crack stress absorbing layer and cement concrete pavement are followed successively by, upper layer is that 13 layers of SMA provides the good anti-rut behavior in road surface, antiskid, performance of watertightness；Middle surface layer is 16 layers conventional of AC, is easy to construct, and saves cost, while can further prevent from seeping water, and the load on scattered road surface；Third layer uses stress absorbing layer, to resist the shear stress from cement panel and carry out stress absorption, while prevents water from penetrating on cement pavement, and still keeps preferable performance when upper middle surface layer is cracking after long-term use.And the thickness design of each layer of the utility model has given full play to the efficiency of each layer and has been complementary to one another, and pavement structure is optimal performance.
Description
Technical field
Asphalt pavement technique field is the utility model is related to, more particularly to a kind of asphalt road for absorbing reflection crack stress
Face structure.
Background technology
Our province is open to traffic at present the cement pavement of suitable mileage in the highway of operation, have in its pavement maintenance engineering a lot
Covering asphalt concrete pavement all is being used, and reflection crack is always the key issue of cement concrete finishing coat damage.Mesh
The preceding generation for employing many methods both at home and abroad and coming delayed reflex crack, main method include：Increase overcoat layer thickness, in cover
GSZ or geotextiles are added between layer and cement plate, smash cement plate for basic unit etc..But these methods have respective office
It is sex-limited, can not effectively solve the problems, such as reflection crack substantially.Reflection crack STRATA stress absorbing layers system is to be applied at home at present
A new technology, but how reflection crack stress absorbing layer effectively should be to remaining problem on road surface to obtain effect.
Therefore, problem be present for of the prior art, need badly and a kind of pavement technique for absorbing reflection crack stress is provided
It is particularly important.
Utility model content
The purpose of this utility model is to avoid weak point of the prior art and provide a kind of reflection crack that absorbs and answer
The asphalt pavement structure of power.
The purpose of this utility model is achieved through the following technical solutions：
Absorb reflection crack stress asphalt pavement structure, be arranged to four-layer structure, be followed successively by from top to down SMA-13 layers,
AC-16 layers, reflection crack stress absorbing layer and cement concrete pavement, wherein,
The thickness of SMA-13 layers is 3cm ~ 5cm,
The thickness of AC-16 layers is 3.5cm ~ 5.5cm,
The thickness of reflection crack stress absorbing layer is 2cm ~ 3cm.
Preferably, the thickness of SMA-13 layers is 4cm, and the thickness of AC-16 layers is 4.5cm, reflection crack stress absorbing layer
Thickness is 2.5cm.
Preferably, reflection crack stress absorbing layer is modified hot asphalt layer and the fluid-tight heated bitumen layer of high resiliency by SBS
Composition.
Preferably, SBS is modified hot asphalt layer and is located above the fluid-tight heated bitumen layer of high resiliency.
The beneficial effects of the utility model：
The asphalt pavement structure of the present utility model for absorbing reflection crack stress, is arranged to four-layer structure, is followed successively by SMA-
13 layers, AC-16 layers, reflection crack stress absorbing layer and cement concrete pavement, it is good that upper layer for SMA-13 layers provides road surface
Anti-rut behavior, antiskid, performance of watertightness；Middle surface layer is conventional AC-16 layers, is easy to construct, and saves cost, while can be with
Further prevent from seeping water, and the load on scattered road surface；Third layer uses stress absorbing layer, to resist the shearing from cement panel
Stress simultaneously carries out stress absorption, while prevents water from penetrating on cement pavement, and is opened after long-term use in upper middle surface layer
Preferable performance is still kept when splitting.And the efficiency that the thickness design of each layer of the utility model has given full play to each layer has mutually complementation
Fill, pavement structure is optimal performance.
Brief description of the drawings
The utility model is described further using accompanying drawing, but the content in accompanying drawing is not formed to of the present utility model
What is limited.
Fig. 1 is the structural representation of one embodiment of the present utility model.
Include in Fig. 1：
1 --- --- AC-16 layers, 3 --- reflection crack stress absorbing layer, 4 --- cement-concrete road of SMA-13 layers, 2
Face.
Embodiment
The utility model is described in further detail with the following Examples.
Embodiment 1
Referring to Fig. 1, the asphalt pavement structure of the absorption reflection crack stress of the present embodiment, four-layer structure is arranged to, from upper
SMA-13 layers 1, AC-16 layers 2, reflection crack stress absorbing layer 3 and cement concrete pavement 4 are down followed successively by, wherein, SMA-
13 layers of thickness is 4cm, and the thickness of AC-16 layers is 4.5cm, and the thickness of reflection crack stress absorbing layer is 2.5cm.
SMA-13 layers are formed by stone mastic asphalt laying.
AC-16 layers are formed by the bituminous concrete mixture laying that stone grain maximum particle diameter is 1.6cm.
Embodiment 2
The main technical schemes of the present embodiment are substantially the same manner as Example 1, the feature not laid down a definition in the present embodiment, adopt
With the explanation in embodiment 1, no longer repeated herein.In the present embodiment, reflection crack stress absorbing layer is modified heat by SBS and mixed
Bitumen layer and the fluid-tight heated bitumen layer composition of high resiliency, and SBS is modified hot asphalt layer and is located at the fluid-tight heat drip of high resiliency
Above cyan layer.
Embodiment 3
The main technical schemes of the present embodiment and embodiment 1 or embodiment 2 are essentially identical, do not solve in the present embodiment
The feature released, using the explanation in embodiment 1 or embodiment 2, no longer repeated herein.The thickness of SMA-13 layers is 3cm,
The thickness of AC-16 layers is 3.5cm, and the thickness of reflection crack stress absorbing layer is 2cm.
Embodiment 4
The main technical schemes of the present embodiment and embodiment 1 or embodiment 2 are essentially identical, do not solve in the present embodiment
The feature released, using the explanation in embodiment 1 or embodiment 2, no longer repeated herein.The thickness of SMA-13 layers is 5cm,
The thickness of AC-16 layers is 5.5cm, and the thickness of reflection crack stress absorbing layer is 3cm.
Finally it should be noted that above example is merely to illustrate the technical solution of the utility model explanation rather than to power
The limitation of the claimed scope of profit.One of ordinary skill in the art should be appreciated that with reference to preferred embodiment and can be to this reality
Modified with new technical scheme or equivalent substitution, but belong to the substantially identical of technical solutions of the utility model and protection
Scope.
Claims (4)
1. absorb the asphalt pavement structure of reflection crack stress, it is characterised in that：Four-layer structure is arranged to, is followed successively by from top to down
SMA-13 layers, AC-16 layers, reflection crack stress absorbing layer and cement concrete pavement, wherein,
The thickness of SMA-13 layers is 3cm ~ 5cm,
The thickness of AC-16 layers is 3.5cm ~ 5.5cm,
The thickness of reflection crack stress absorbing layer is 2cm ~ 3cm.
2. the asphalt pavement structure according to claim 1 for absorbing reflection crack stress, it is characterised in that：SMA-13 layers
Thickness be 4cm, the thickness of AC-16 layers is 4.5cm, and the thickness of reflection crack stress absorbing layer is 2.5cm.
3. the asphalt pavement structure according to claim 1 for absorbing reflection crack stress, it is characterised in that：Reflection crack should
Power absorbed layer is modified hot asphalt layer by SBS and the fluid-tight heated bitumen layer of high resiliency forms.
4. the asphalt pavement structure according to claim 3 for absorbing reflection crack stress, it is characterised in that：SBS is modified heat
Bitumen layer is mixed to be located above the fluid-tight heated bitumen layer of high resiliency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720602351.9U CN206752236U (en) | 2017-05-26 | 2017-05-26 | Absorb the asphalt pavement structure of reflection crack stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720602351.9U CN206752236U (en) | 2017-05-26 | 2017-05-26 | Absorb the asphalt pavement structure of reflection crack stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206752236U true CN206752236U (en) | 2017-12-15 |
Family
ID=60620819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720602351.9U Active CN206752236U (en) | 2017-05-26 | 2017-05-26 | Absorb the asphalt pavement structure of reflection crack stress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206752236U (en) |
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2017
- 2017-05-26 CN CN201720602351.9U patent/CN206752236U/en active Active
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