CN206189221U - Temperature reduction and phase change bituminous pavement structure suitable for heavily traffic - Google Patents
Temperature reduction and phase change bituminous pavement structure suitable for heavily traffic Download PDFInfo
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- CN206189221U CN206189221U CN201620748460.7U CN201620748460U CN206189221U CN 206189221 U CN206189221 U CN 206189221U CN 201620748460 U CN201620748460 U CN 201620748460U CN 206189221 U CN206189221 U CN 206189221U
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- pavement structure
- phase transformation
- heavy traffic
- lowered
- asphalt pavement
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Abstract
The utility model belongs to the technical field of road engineering, a temperature reduction and phase change bituminous pavement structure suitable for heavily traffic is related to, surface course, the surface course under the concrete that permeates water, cement stable permeate water upper base layer, graded broken stone base layer and graded macadam bedding layer during the cling compound is joined in marriage to surface course, division level on top -down lays the phase transition permeable asphalt concrete on the soil matrix in proper order. The utility model provides a road surface structure can adapt to the heavy traffic load characteristics, satisfies accumulative total standard shaft ne=1.2's 107~2.5 107 (inferior / lane) road, under the prerequisite of guaranteeing bearing capacity, can effectively reduce pavement temperature.
Description
Technical field
The utility model belongs to road engineering technical field, is related to a kind of pavement structure, more particularly to a kind of suitable for weight
The phase transformation cooling asphalt pavement structure of traffic.
Background technology
Bituminous concrete is black material, and heat absorption capacity is strong, easily causes pavement temperature to raise.Road surface high temperature can give road
Durability, traffic safety and ecological environment bring and have a strong impact on, and such as accelerate ageing of asphalt, aggravation road surface high temperature rut, induce and hand over
Interpreter's event, aggravation urban heat land effect etc..With global air temperature warming, the extensive use of bituminous paving, road surface high temperature problem is more
Plus it is prominent.
In conventional research, people are generally individually using in phase-change temperature control bituminous concrete or pervious asphalt concrete
One kind reduces pavement temperature.But some problems are also occurred in that during use：(1) phase-change material adds very few cooling-down effect
Not substantially, the performance of excessive influence bituminous concrete is added, in order to ensure the pavement performance of bituminous concrete, phase-change temperature control
The cooling function of bituminous concrete is limited by very large；(2) pervious asphalt concrete has than larger porosity, but
The bearing capacity of this material is limited, is not suitable for heavy traffic, very heavy traffic road occupation.
Therefore it provides a kind of cooling asphalt pavement structure suitable for heavy traffic road is problem demanding prompt solution.
Utility model content
The purpose of this utility model is to provide a kind of phase transformation cooling asphalt pavement structure suitable for heavy traffic, road surface knot
Structure can adapt to heavy traffic load feature, meet accumulated standard axle time Ne=1.2 × 107~2.5 × 107The road in (secondary/track)
Road, on the premise of bearing capacity is ensured, can effectively reduce pavement temperature.
To achieve the above object, the utility model is adopted the following technical scheme that：
A kind of phase transformation cooling asphalt pavement structure suitable for heavy traffic, it is characterised in that：It is described suitable for heavy traffic
Phase transformation cooling asphalt pavement structure includes the phase transformation pervious asphalt concrete upper layer being laid on successively on soil matrix from top to bottom, opens
Level is with surface layer, pervious concrete cutting optimal, the permeable upper basic unit of cement stabilizing, gravel-sorted subbase and graded broken stone in antiskid
Bed course.
Preferably, the level of phase transformation pervious asphalt concrete upper layer that is used of the utility model is with being OGFC-16；Institute
The thickness for stating phase transformation pervious asphalt concrete upper layer is 40mm.
Preferably, surface layer is that big space open gradation drainage type pitch grinds in the open gradation antiskid that is used of the utility model
Consumption layer, with being OGFC-16, the thickness of surface layer is 50mm to the level of surface layer in the open gradation antiskid in the open gradation antiskid.
Preferably, the pervious concrete cutting optimal that the utility model is used is Sand-free permeable concrete layer, it is described
The thickness of water coagulation soil cutting optimal is 200mm, and the voidage of the pervious concrete cutting optimal is 15~25%.
Preferably, the thickness of the permeable upper basic unit of cement stabilizing that the utility model is used is 400mm, the cement is steady
The voidage of fixed permeable upper basic unit is 15~25%.
Preferably, the crush values of building stones are not more than 25%, institute in the gravel-sorted subbase that is used of the utility model
The compactness of gravel-sorted subbase is stated not less than 100%, the CBR values of the gravel-sorted subbase are described not less than 100%
The thickness of gravel-sorted subbase is 200mm.
Preferably, the crush values of building stones are not more than 26% in the granular cushion that is used of the utility model, it is described
The compactness of granular cushion is not less than 98%, and the CBR values of the granular cushion are not less than 100%, and the level is with broken
The thickness of stone bed course is 200mm.
Preferably, the compression rebound modulu of soil matrix that the utility model is used is not less than 45MPa.
The utility model compared with the prior art, with advantages below and beneficial effect：
The utility model provides a kind of phase transformation suitable for heavy traffic and lowers the temperature asphalt pavement structure, including from bottom to top according to
Below the permeable upper basic unit of the secondary granular cushion being laid on soil matrix, gravel-sorted subbase, cement stabilizing, pervious concrete
Surface layer, phase transformation pervious asphalt concrete upper layer in layer, open gradation antiskid.The pavement structure that the utility model is used utilizes phase
Become storage of the phase transformation fuel factor of bituminous concrete to solar energy reduces bituminous paving temperature with release, while using pervious asphalt
Pavement structure adjusts the temperature and humidity of air, so as to reduce pavement temperature.By pervious concrete cutting optimal and cement stabilizing
The application of porous base course improves bearing capacity of pavement structure, overcomes phase-change temperature control bituminous concrete and pervious asphalt concrete should
With the problem of the Lack of support for bringing.In a word, the utility model provides a kind of phase transformation cooling pitch suitable for heavy traffic
On the one hand pavement structure has more preferable road surface cooling-down effect, on the one hand disclosure satisfy that the use requirement of heavy traffic road.
Brief description of the drawings
Fig. 1 is the structural representation of pavement structure provided by the utility model；
Wherein：
1- soil matrixs；2- granular cushions；3- gravel-sorted subbases；The permeable upper basic unit of 4- cement stabilizings；5- is permeable mixed
Solidifying soil cutting optimal；Surface layer in 6- open gradation antiskids；7- phase transformation pervious asphalt concrete upper layers.
Specific embodiment
The utility model is further described in conjunction with drawings and Examples, but the utility model is not limited only to down
The implementation method stated.
Referring to Fig. 1, the utility model provides a kind of phase transformation cooling asphalt pavement structure suitable for heavy traffic, including certainly
It is lower and on be laid on granular cushion 2 on soil matrix 1, the permeable upper basic unit 4 of gravel-sorted subbase 3, cement stabilizing, thoroughly successively
Surface layer 6 and phase transformation pervious asphalt concrete upper layer 7 in water coagulation soil cutting optimal 5, open gradation antiskid.
Wherein：
Phase transformation pervious asphalt concrete upper layer 7, with being OGFC-16, cementitious matter is high-viscosity asphalt and phase transformation to the level for using
The mixture of material, phase-change material is polyethylene glycol.The thickness of phase transformation pervious asphalt concrete upper layer 7 is 4cm.
Surface layer 6 uses big space open gradation drainage type asphalt wearing layer in open gradation antiskid, and it is OGFC-16 that level is matched somebody with somebody,
Pitch is high-viscosity asphalt, and thickness is 50mm.
Pervious concrete cutting optimal 5 uses Sand-free permeable concrete, and aggregate uses gap grading, and thickness is 200mm,
Voidage is 15~25%.
The permeable upper basic unit 4 of cement stabilizing, aggregate uses gap grading, and thickness is 400mm, and voidage is 15~25%.
Gravel-sorted subbase 3, it is desirable to which the crush values of building stones are not more than 25%, is designed using heavy compacting criteria, compacting
Degree is not less than 100% not less than 100%, CBR values, and thickness is 200mm.
Granular cushion 2, it is desirable to which the crush values of building stones are not more than 26%, is designed, compactness using heavy compacting criteria
It is not less than 100% not less than 98%, CBR values, thickness is 200mm.
The compression rebound modulu of soil matrix 1 is not less than 45MPa.
Claims (8)
1. a kind of phase transformation suitable for heavy traffic is lowered the temperature asphalt pavement structure, it is characterised in that：The phase suitable for heavy traffic
Becoming cooling asphalt pavement structure includes being laid on soil matrix successively from top to bottom（1）On phase transformation pervious asphalt concrete upper layer
（7）, surface layer in open gradation antiskid（6）, pervious concrete cutting optimal（5）, the permeable upper basic unit of cement stabilizing（4）, graded broken stone bottom
Basic unit（3）And granular cushion（2）.
2. the phase transformation suitable for heavy traffic according to claim 1 is lowered the temperature asphalt pavement structure, it is characterised in that：The phase
Become pervious asphalt concrete upper layer（7）Level be OGFC-16；The phase transformation pervious asphalt concrete upper layer（7）Thickness
It is 40mm to spend.
3. the phase transformation suitable for heavy traffic according to claim 2 is lowered the temperature asphalt pavement structure, it is characterised in that：It is described to open
Level is with surface layer in antiskid（6）It is big space open gradation drainage type asphalt wearing layer, surface layer in the open gradation antiskid（6）Level match somebody with somebody
It is OGFC-16, surface layer in the open gradation antiskid（6）Thickness be 50mm.
4. the phase transformation suitable for heavy traffic according to claim 3 is lowered the temperature asphalt pavement structure, it is characterised in that：It is described
Water coagulation soil cutting optimal（5）It is Sand-free permeable concrete layer, the pervious concrete cutting optimal（5）Thickness be 200mm, it is described
Pervious concrete cutting optimal（5）Voidage be 15~25%.
5. the phase transformation suitable for heavy traffic according to claim 4 is lowered the temperature asphalt pavement structure, it is characterised in that：The water
Mud stablizes permeable upper basic unit（4）Thickness be 400mm, the permeable upper basic unit of cement stabilizing（4）Voidage be 15~25%.
6. the phase transformation suitable for heavy traffic according to claim 5 is lowered the temperature asphalt pavement structure, it is characterised in that：The level
With granular sub-base（3）The crush values of middle building stones are not more than 25%, the gravel-sorted subbase（3）Compactness be not less than
100%, the gravel-sorted subbase（3）CBR values be not less than 100%, the gravel-sorted subbase（3）Thickness be
200mm。
7. the phase transformation suitable for heavy traffic according to claim 6 is lowered the temperature asphalt pavement structure, it is characterised in that：The level
With blotter（2）The crush values of middle building stones are not more than 26%, the granular cushion（2）Compactness be not less than 98%, institute
State granular cushion（2）CBR values be not less than 100%, the granular cushion（2）Thickness be 200mm.
8. the phase transformation suitable for heavy traffic according to claim 7 is lowered the temperature asphalt pavement structure, it is characterised in that：The soil
Base（1）Compression rebound modulu be not less than 45MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620748460.7U CN206189221U (en) | 2016-07-15 | 2016-07-15 | Temperature reduction and phase change bituminous pavement structure suitable for heavily traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620748460.7U CN206189221U (en) | 2016-07-15 | 2016-07-15 | Temperature reduction and phase change bituminous pavement structure suitable for heavily traffic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206189221U true CN206189221U (en) | 2017-05-24 |
Family
ID=58736485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620748460.7U Expired - Fee Related CN206189221U (en) | 2016-07-15 | 2016-07-15 | Temperature reduction and phase change bituminous pavement structure suitable for heavily traffic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206189221U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183551A (en) * | 2018-07-31 | 2019-01-11 | 同济大学 | A kind of porous colour gap bituminous pavement and its construction method |
| CN114525707A (en) * | 2021-12-31 | 2022-05-24 | 同路达(上海)生态科技有限公司 | Composite pavement structure based on high-performance ecological macroporous concrete material |
-
2016
- 2016-07-15 CN CN201620748460.7U patent/CN206189221U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183551A (en) * | 2018-07-31 | 2019-01-11 | 同济大学 | A kind of porous colour gap bituminous pavement and its construction method |
| CN114525707A (en) * | 2021-12-31 | 2022-05-24 | 同路达(上海)生态科技有限公司 | Composite pavement structure based on high-performance ecological macroporous concrete material |
| CN114525707B (en) * | 2021-12-31 | 2024-02-02 | 同路达(上海)生态科技有限公司 | Composite pavement structure based on high-performance ecological macroporous concrete material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20190715 |