CN2687166Y - Flexible base anticracking asphalt road surface structure - Google Patents
Flexible base anticracking asphalt road surface structure Download PDFInfo
- Publication number
- CN2687166Y CN2687166Y CN 200420033460 CN200420033460U CN2687166Y CN 2687166 Y CN2687166 Y CN 2687166Y CN 200420033460 CN200420033460 CN 200420033460 CN 200420033460 U CN200420033460 U CN 200420033460U CN 2687166 Y CN2687166 Y CN 2687166Y
- Authority
- CN
- China
- Prior art keywords
- road surface
- base
- semi
- asphalt
- concrete surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a flexible base anticracking asphalt road surface structure, comprising a bituminous concrete surface layer 1, a semi-rigid base layer 2 and a soil base 3. The utility model is characterized in that a graded broken stone base layer 4 is added between the bituminous concrete surface layer 1 and the semi-rigid base layer 2. The utility model has the advantages that the cracks of the asphalt road surface are greatly reduced to make the stress of the asphalt covering and the structure of the whole road surface tend to be more reasonable, and the service life of the road surface is extended.
Description
Technical field
The utility model relates to the highway pavement structure, especially relates to a kind of flexbile base cracking resistance asphalt pavement structure.
Background technology
At present the form of structure of China Higher level asphalt highway is followed successively by from top to bottom: asphalt concrete surface layer+stablize with inorganic binder such as cement and lime fly ash and the industrial residue semi-rigid type base+soil matrix of great soil group.Intermediate layer in this structure is a semi-rigid sub-base material of stablizing great soil group with inorganic binder such as cement and lime fly ash and industrial residue, easily cracking and and then drawing crack asphalt concrete surface layer, make that the application life of highway is shorter.
Summary of the invention
In order to reduce the crack of asphalt highway, prolong the application life of highway, the utility model provides a kind of flexbile base cracking resistance asphalt pavement structure, it is realized by following scheme: flexbile base cracking resistance asphalt pavement structure, comprise asphalt concrete surface layer, semi-rigid type base and soil matrix, its architectural feature is: increase one deck graded broken stone base between asphalt concrete surface layer and semi-rigid type base.The thickness of described graded broken stone base is 13-15cm.
The utility model has the advantages that: greatly reduced asphalt pavement crack, the stressed of asphalt surface course and whole road structure more become rationally, prolonged the application life on road surface.
Description of drawings
Accompanying drawing is a cross-section structure of the present utility model.
The specific embodiment
As shown in the figure, flexbile base cracking resistance asphalt pavement structure comprises asphalt concrete surface layer 1, semi-rigid type base 2 and soil matrix 3, and its architectural feature is: increase one deck graded broken stone base 4 between asphalt concrete surface layer 1 and semi-rigid type base 2.The thickness of described graded broken stone base 4 is 13-15cm.
Because the adding of graded broken stone base 4, being equivalent to has increased one deck separation layer between asphalt concrete surface layer 1 and semi-rigid type base 2, can absorb semi-rigid type base 2 and do the contract reflection crack of the asphalt concrete surface layer 1 that cracking causes of temperature, greatly reduce asphalt pavement crack, prolonged the application life on road surface; Compare with semi-rigid type base 2, the intensity of graded broken stone base 4 and rigidity are more near asphalt concrete surface layer 1, and the connection between graded broken stone base 4 and the asphalt concrete surface layer 1 is tightr, thereby make the stressed of asphalt concrete surface layer 1 and whole highway structure more become reasonable; Graded broken stone base 4 can also play the effect of drainage blanket, in time gets rid of the moisture that infiltrates the road surface, prolongs the application life on road surface.
Claims (2)
1, flexbile base cracking resistance asphalt pavement structure comprises asphalt concrete surface layer (1), semi-rigid type base (2) and soil matrix (3), it is characterized in that: increase one deck graded broken stone base (4) between asphalt concrete surface layer (1) and semi-rigid type base (2).
2, flexbile base cracking resistance asphalt pavement structure according to claim 1, it is characterized in that: the thickness of described graded broken stone base (4) is 13-15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420033460 CN2687166Y (en) | 2004-03-26 | 2004-03-26 | Flexible base anticracking asphalt road surface structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420033460 CN2687166Y (en) | 2004-03-26 | 2004-03-26 | Flexible base anticracking asphalt road surface structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687166Y true CN2687166Y (en) | 2005-03-23 |
Family
ID=34670752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420033460 Expired - Fee Related CN2687166Y (en) | 2004-03-26 | 2004-03-26 | Flexible base anticracking asphalt road surface structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687166Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518018A (en) * | 2011-12-27 | 2012-06-27 | 江西中联建设集团有限公司 | Stacked structure of road pavement and construction method for stacked structure |
| CN104894939A (en) * | 2015-05-29 | 2015-09-09 | 武汉理工大学 | Composite type road surface |
| CN111549607A (en) * | 2020-04-21 | 2020-08-18 | 北京智华通科技有限公司 | Environment-friendly high-performance long-life pavement structure and construction method |
-
2004
- 2004-03-26 CN CN 200420033460 patent/CN2687166Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518018A (en) * | 2011-12-27 | 2012-06-27 | 江西中联建设集团有限公司 | Stacked structure of road pavement and construction method for stacked structure |
| CN102518018B (en) * | 2011-12-27 | 2014-10-08 | 江西中联建设集团有限公司 | Stacked structure of road pavement and construction method for stacked structure |
| CN104894939A (en) * | 2015-05-29 | 2015-09-09 | 武汉理工大学 | Composite type road surface |
| CN104894939B (en) * | 2015-05-29 | 2017-03-22 | 武汉理工大学 | Composite type road surface |
| CN111549607A (en) * | 2020-04-21 | 2020-08-18 | 北京智华通科技有限公司 | Environment-friendly high-performance long-life pavement structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |