CN205839506U - A kind of cement concrete pavement add in-place black top pavement structure - Google Patents
A kind of cement concrete pavement add in-place black top pavement structure Download PDFInfo
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- CN205839506U CN205839506U CN201620025075.XU CN201620025075U CN205839506U CN 205839506 U CN205839506 U CN 205839506U CN 201620025075 U CN201620025075 U CN 201620025075U CN 205839506 U CN205839506 U CN 205839506U
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Abstract
This utility model relates to field of traffic facilities, it is specifically related to a kind of cement concrete pavement add in-place black top pavement structure, described roadbed is equipped with cement stabilized macadam base, described cement stabilized macadam base is equipped with Old cement concrete, described Old cement concrete is equipped with stress absorption system layer, described Old cement concrete is bonded together with stress absorption system layer, described stress absorption system layer is equipped with high-elastic high adhered modification bitumen A C 20 layers, described high-elastic high adhered modification bitumen A C 20 layers is equipped with high-elastic high adhered modification asphalt-mastic-broken stone SMA 13 layers.This utility model simple in construction, each interlayer structure in road surface has preferable adhesion strength, has the strongest high-temperature stability and low temperature flexibility, and the strongest Reflection Cracking performance.Spread anticracking coiled material at cement concrete seaming position bar, and on panel, dispense rubber asphalt stress absorbing layer, and high-viscosity high-elasticity modified asphalt mixture can the appearance in effective inhibitory reflex crack, Pavement Performance excellence.
Description
Technical field
This utility model relates to field of traffic facilities, particularly a kind of cement concrete pavement add in-place black top road surface knot
Structure.
Background technology
Cement concrete pavement is that a kind of rigidity is relatively big, diffusion load stress ability is strong, good stability and service life long
Pavement structure, it, compared with other road surfaces, has the following characteristics that
Advantage: (1) intensity is high；(2) good stability；(3) good endurance；(4) maintenance costs is low.
Shortcoming: (1) seam is more；(2) driving comfort is poor；(3) antiskid performance is more weak than bituminous paving；(4) maintenance reparation
Difficulty；(5) the health preserving cycle is long.
The defect of prior art or deficiency: cement pavement is after using certain time limit, and panel crack easily occurs, breaks
Plate, the fracture of plate angle, serious faulting of slab ends, coming to nothing, need periodically to safeguard, easily there is interlayer in the conventional asphalt pavement structure that overlays
Peel off, reflection crack easily occurs, existing safeguard wanting of the performances such as way cannot meet people's road pavement comfortableness, ruggedness
Ask.
Utility model content
Goal of the invention of the present utility model is: the problem existed for prior art, it is provided that a kind of cement-concrete road
Face add in-place black top pavement structure.
To achieve these goals, the technical solution adopted in the utility model is: a kind of cement concrete pavement add in-place
Black top pavement structure, including roadbed, is equipped with cement stabilized macadam base (4), at described cement stabilizing on described roadbed
It is equipped with Old cement concrete on crushed rock base course, described Old cement concrete is equipped with stress absorption system
Layer, described Old cement concrete is bonded together with stress absorption system layer, lays in described stress absorption system layer
There is high-elastic high adhered modification bitumen A C-20 layer, described high-elastic high adhered modification bitumen A C-20 layer is equipped with the drip of high-elastic high adhered modification
Blue or green mastic-broken stone SMA-13 layer.
As preferred version of the present utility model, described stress absorption system layer includes the anticracking coiled material that thickness is 500mm
With the rubber asphalt stress absorbing layer of 10mm, described Old cement concrete is provided with seam, is provided with joint filling in described seam
Material, described anticracking coiled material is bonded on described Old cement concrete, and on described anticracking coiled material, spreading has thickness is 10mm
Rubber asphalt stress absorbing layer.
As preferred version of the present utility model, the thickness of described high-elastic high adhered modification asphalt AC-20 is 60-
80mm。
As preferred version of the present utility model, the thickness of described high-elastic high adhered modification asphalt-mastic-broken stone SMA-13
For 40mm.
Owing to have employed technique scheme, the beneficial effects of the utility model are: use stress absorption system layer notable
The appearance in delayed reflex crack, extends the durability on road surface.Road surface each interlayer structure adhesion strength is big, uses high-elastic high adhered modification
Asphalt significantly reduces reflection crack and extends Pavement Performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain this
Utility model, is not used to limit this utility model.
Embodiment 1
A kind of cement concrete pavement add in-place black top pavement structure, including roadbed 5, is equipped with on described roadbed 5
Cement stabilized macadam base 4, is equipped with Old cement concrete 3 on described cement stabilized macadam base 4, at described old water
Being equipped with stress absorption system layer 2 on cement concrete road surface 3, described Old cement concrete 3 glues with stress absorption system layer 2
Knot together, is equipped with high-elastic high adhered modification bitumen A C-20 layer 1 in described stress absorption system layer 2, glues at described high-elastic height
High-elastic high adhered modification asphalt-mastic-broken stone SMA-13 layer 6 it is equipped with on modified pitch AC-20 layer 1.
Embodiment 2
A kind of cement concrete pavement add in-place black top pavement structure, including roadbed 5, is equipped with on described roadbed 5
Cement stabilized macadam base 4, is equipped with Old cement concrete 3, at old cement on described cement stabilized macadam base 4
Being equipped with stress absorption system layer 2 on concrete road surface 3, described Old cement concrete 3 bonds with stress absorption system layer 2
Together, described stress absorption system layer 2 is equipped with high-elastic high adhered modification bitumen A C-20 layer 1, glues at described high-elastic height and change
It is equipped with high-elastic high adhered modification asphalt-mastic-broken stone SMA-13 layer 6 on property bitumen A C-20 layer 1.Described stress absorption system layer 2
Including the rubber asphalt stress absorbing layer 8 of the anticracking coiled material 7 and 10mm that thickness is 500mm, on described Old cement concrete 3
Being provided with seam 9, be provided with joint sealing material in described seam 9, described anticracking coiled material 7 is bonded on described Old cement concrete 3,
The rubber asphalt stress absorbing layer 8 having thickness to be 10mm is dispensed on described anticracking coiled material 7.
Embodiment 3
A kind of cement concrete pavement add in-place black top pavement structure, including roadbed 5, is equipped with on described roadbed 5
Cement stabilized macadam base 4, is equipped with Old cement concrete 3 on described cement stabilized macadam base 4, at described old mud
Being equipped with stress absorption system layer 2 on concrete road surface 3, described Old cement concrete 3 bonds with stress absorption system layer 2
Together, described stress absorption system layer 2 is equipped with high-elastic high adhered modification bitumen A C-20 layer 1, glues at described high-elastic height and change
It is equipped with high-elastic high adhered modification asphalt-mastic-broken stone SMA-13 layer 6 on property bitumen A C-20 layer 1.Described stress absorption system layer 2
Including the rubber asphalt stress absorbing layer 8 of the anticracking coiled material 7 and 10mm that thickness is 500mm, on described Old cement concrete 3
Being provided with seam 9, be provided with joint sealing material in described seam 9, described anticracking coiled material 7 is bonded on described Old cement concrete 3,
The rubber asphalt stress absorbing layer 8 having thickness to be 10mm is dispensed on described anticracking coiled material 7.Described high-elastic high adhered modification Colophonium mixes
The thickness of material AC-201 is 70mm.The thickness of described high-elastic high adhered modification asphalt-mastic-broken stone SMA-136 is 40mm.
Cement concrete pavement add in-place black top pavement structure in embodiment 1-3, in order to prevent " paracetamol " road surface
Produce reflection crack at the asphalt overlaying end layer by layer, stress absorption is generally set between asphalt overlay and cement concrete pavement
System layer material.Choosing stress absorption system layer thickness is the material of 10mm, and its corresponding elastic modelling quantity is respectively 100MPa, Poisson
Ratio 0.3, carries out finite element analysis computation, analyzes with or without sandwich material Colophonium and the impact of ply stress, result of calculation such as following table:
Asphalt overlaying ply stress is with sandwich material modulus change table
| Interlayer situation | σ x (MPa) | σ y (MPa) | σ z (MPa) | τ max (MPa) |
| Without interlayer | 1.452 | 0.7035 | 0.7826 | 0.7108 |
| There is interlayer | 0.6836 | 0.5018 | 0.5684 | 0.3013 |
As can be seen from the above table, after sandwich establishment material, the stress of asphalt overlay is substantially reduced, and wherein σ x reduces
53%, σ y reduces 29%, and σ z reduces 27%, and τ max reduces 58%, i.e. sandwich material can effectively reduce the stress of overlay,
Alleviate the generation of reflection crack.The pavement structure making the embodiment in this utility model is better than existing pavement structure.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (4)
1. a cement concrete pavement add in-place black top pavement structure, including roadbed (5), it is characterised in that: on described road
It is equipped with cement stabilized macadam base (4) on base (5), described cement stabilized macadam base (4) is equipped with old coagulating cement
Soil surface (3), is bonded together between described cement stabilized macadam base (4) and Old cement concrete (3), described old
Stress absorption system layer (2), described Old cement concrete (3) and stress absorption it is equipped with on cement concrete pavement (3)
System layer (2) is bonded together, and is equipped with high-elastic high adhered modification bitumen A C-20 layer on described stress absorption system layer (2)
(1), described high-elastic high adhered modification bitumen A C-20 layer (1) is equipped with high-elastic high adhered modification asphalt-mastic-broken stone SMA-13
Layer (6).
A kind of cement concrete pavement add in-place black top pavement structure the most according to claim 1, it is characterised in that: institute
State anticracking coiled material (7) and the rubber asphalt stress absorbing layer (8) of 10mm that stress absorption system layer (2) includes that thickness is 500mm,
Described Old cement concrete (3) is provided with seam (9), is provided with joint sealing material, described anticracking coiled material (7) in described seam (9)
It is bonded on described Old cement concrete (3), above dispenses the rubber asphalt having thickness to be 10mm described anticracking coiled material (7)
Stress absorbing layer (8).
A kind of cement concrete pavement add in-place black top pavement structure the most according to claim 1, it is characterised in that: institute
State high-elastic high adhered modification asphalt AC-20(1) thickness be 60-80mm.
A kind of cement concrete pavement add in-place black top pavement structure the most according to claim 1, it is characterised in that: institute
State high-elastic high adhered modification asphalt-mastic-broken stone SMA-13(6) thickness be 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620025075.XU CN205839506U (en) | 2016-01-12 | 2016-01-12 | A kind of cement concrete pavement add in-place black top pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620025075.XU CN205839506U (en) | 2016-01-12 | 2016-01-12 | A kind of cement concrete pavement add in-place black top pavement structure |
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| CN205839506U true CN205839506U (en) | 2016-12-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184886A (en) * | 2019-05-27 | 2019-08-30 | 广州大学 | A kind of asphalt plus concrete road health detecting system and method |
| CN111945506A (en) * | 2020-08-19 | 2020-11-17 | 长安大学 | Porous concrete base layer composite asphalt pavement structure and laying method thereof |
| CN114381982A (en) * | 2021-12-17 | 2022-04-22 | 中铁建新疆京新高速公路有限公司 | Pavement reflection crack prevention and control structure suitable for large-temperature-difference environment and construction method |
-
2016
- 2016-01-12 CN CN201620025075.XU patent/CN205839506U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184886A (en) * | 2019-05-27 | 2019-08-30 | 广州大学 | A kind of asphalt plus concrete road health detecting system and method |
| CN111945506A (en) * | 2020-08-19 | 2020-11-17 | 长安大学 | Porous concrete base layer composite asphalt pavement structure and laying method thereof |
| CN114381982A (en) * | 2021-12-17 | 2022-04-22 | 中铁建新疆京新高速公路有限公司 | Pavement reflection crack prevention and control structure suitable for large-temperature-difference environment and construction method |
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Address after: 610000 7-10 Floor, Block B, Building No. 4, 200 Tianfu Fifth Street, Chengdu High-tech Zone, Sichuan Province Patentee after: Sichuan Highway Planning, Survey and Design Research Institute Co., Ltd. Address before: 610000 No. 1 Hengjie, Wuhou Temple, Chengdu City, Chengdu, Sichuan Province Patentee before: Sichuan Department of Transportation Highway Planning, Prospecting and Design Research Institute |