CN102561142B - Limit ultrathin asphalt pavement - Google Patents
Limit ultrathin asphalt pavement Download PDFInfo
- Publication number
- CN102561142B CN102561142B CN201210015253.7A CN201210015253A CN102561142B CN 102561142 B CN102561142 B CN 102561142B CN 201210015253 A CN201210015253 A CN 201210015253A CN 102561142 B CN102561142 B CN 102561142B
- Authority
- CN
- China
- Prior art keywords
- asphalt
- pavement
- thickness
- asphalt pavement
- layer
- 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
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 33
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 claims abstract description 4
- 239000011593 sulfur Substances 0.000 claims abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 201000010099 disease Diseases 0.000 abstract description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 239000002344 surface layer Substances 0.000 abstract 3
- 239000010410 layer Substances 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Abstract
本发明公开了一种极限超薄沥青路面，涉及沥青路面建设技术领域。由上往下包括沥青面层、粘结油层、刚性或半刚性基层、土基，其特征在于所述沥青面层的厚度为3-50mm。粘结油层所使用的粘结油为AH70#、AH90#沥青或SBS改性沥青或硫磺改性沥青。本发明的路面具有消除弯拉疲劳破坏和车辙病害、减少沥青面层自身温度裂缝病害，修建成本低，养护费用低等优点。The invention discloses an extreme ultra-thin asphalt pavement and relates to the technical field of asphalt pavement construction. From top to bottom, it includes an asphalt surface layer, a bonded oil layer, a rigid or semi-rigid base, and a soil foundation, and is characterized in that the thickness of the asphalt surface layer is 3-50mm. The bonding oil used in the bonding oil layer is AH70#, AH90# asphalt or SBS modified asphalt or sulfur modified asphalt. The pavement of the invention has the advantages of eliminating bending and pulling fatigue damage and rutting disease, reducing the temperature crack disease of the asphalt surface layer itself, low construction cost, low maintenance cost and the like.
Description
Technical field
The present invention relates to Bituminous Pavement Construction technical field, relate in particular to a kind of limit ultrathin asphalt pavement.
Background technology
Current flexible pavement thickness both domestic and external, all at 70mm-400mm, because thickness of bituminous surface is large, is easy to occur rut; Because thickness of bituminous surface is large, be not easy to occur breaks down, thereby ignored tack coat, therefore often there is the curved fatigue failure of drawing; Sometimes also there will be temperature gradient crack.Especially rut disease is the great technical barrier that high-grade highway never solves; Bituminous material costliness, builds cost high, and maintenance costs is high.Also there is no in the world at present limit ultrathin asphalt pavement.
Summary of the invention
The invention provides a kind of limit ultrathin asphalt pavement, have to eliminate and curvedly draw fatigue failure and rut disease, reduce asphalt surface course self thermal cracking disease, and build the advantages such as cost is low, maintenance costs is low, greatly improve economic benefit, be particularly suitable for highways and streets at different levels and airfield runway.
The technical solution used in the present invention is:
A kind of limit ultrathin asphalt pavement, comprises asphalt surface course, bonding oil reservoir, rigidity or semi-rigid type base, subbase, soil matrix from top to bottom, and wherein the thickness of asphalt surface course is 3-50mm.
The thickness of asphalt surface course is preferably 30-40mm.
The bonding oil that bonding oil reservoir uses is AH70#, AH90# pitch or SBS modified bitumen or sulfur modified pitch.
The beneficial effect that adopts technique scheme to produce is:
1. thinner asphalt surface course is in the pressure zone of road structure bending resistance section, coordinates with bonding oil by reducing thickness of bituminous surface and asphalt surface course, eliminates the curved fatigue failure of drawing; Eliminate rut disease; Reduce pavement temperature gradient crack.
2. significantly lower road surface and build cost and maintenance cost: approximately 4,300,000 yuan of costs are built in every kilometer of reduction of speedway, approximately 2,000,000 yuan of costs are built in every kilometer of reduction of Class I highway, approximately 600,000 yuan of costs are built in every kilometer of reduction of Class II highway, greatly improve economic benefit, be particularly suitable for highways and streets at different levels and airfield runway.
Detailed description of the invention
Embodiment:
Soil matrix, rigidity or semi-rigid type base, the same prior art of bonding oil reservoir (summary) in the present embodiment.
Use Finite Element is calculated, and result shows that the rut degree of depth of flexible pavement increases with the thickness of flexible pavement, in table 1:
Different surface thickness rut degree of depth statistics under 3,750,000 traffic loadings of table 1
| Surface thickness (mm) | Displacement in wheel (mm) | Wheel side displacement (mm) | The rut degree of depth (mm) |
| 3 | -0.12 | 0.05 | 0.16 |
| 5 | -0.13 | 0.08 | 0.27 |
| 8 | -0.31 | 0.13 | 0.44 |
| 10 | -0.38 | 0.16 | 0.55 |
| 30 | -1.15 | 0.49 | 1.64 |
| 50 | -1.92 | 0.82 | 2.74 |
| 100 | -3.84 | 1.63 | 5.47 |
| 150 | -7.50 | 2.21 | 9.71 |
| 200 | -10.92 | 2.64 | 13.56 |
| 250 | -14.41 | 2.96 | 17.37 |
| 300 | -17.52 | 3.23 | 20.75 |
Experimental road testing result proves, due to frictional force and adhesion stress and the frictional force at the layer end of doughnut, has limited the horizontal plastic strain of asphalt surface course upper and lower surface, in the time that thickness of bituminous surface is not more than 50mm, there will not be rut.
The present invention shows, in table 2:
Table 2 temperature gradient stress calculating results
| Pitch thickness (mm) | Temperature gradient (degree/m) | Linear expansion coefficient | Modulus of elasticity (MPa) | Surface temperature stress (MPa) |
| 10 | 86 | 1.5×10 -5/ oC | 1400 | 0.018 |
| 30 | 86 | 1.5×10 -5/ oC | 1400 | 0.054 |
| 40 | 86 | 1.5×10 -5/ oC | 1400 | 0.072 |
| 50 | 86 | 1.5×10 -5/ oC | 1400 | 0.090 |
| 100 | 86 | 1.5×10 -5/ oC | 1400 | 0.180 |
| 150 | 86 | 1.5×10 -5/ oC | 1400 | 0.270 |
| 200 | 86 | 1.5×10 -5/ oC | 1400 | 0.360 |
| 300 | 86 | 1.5×10 -5/ oC | 1400 | 0.540 |
Note: 1, linear expansion coefficient is referring to the chief editor of " engineering material " Chang An University, People's Transportation Press.
2, temperature gradient is referring to JTG D40-2002 " highway cement pavement design specification ".
3, modulus of elasticity is referring to JTG D50-2006 " bituminous pavement design for highway specification ".
As can be seen from the above table, flexible pavement surface temperature stress increases with its thickness, and asphalt surface course is thinner, and surface temperature stress is less, occurs that the possibility in crack is less.
Thickness of bituminous surface of the present invention is to determine minimum thickness by bleeding (coefficient of permeability is not more than 30mml/min), planeness (meeting ministry standard requires), texture depth (meeting ministry standard requires).
The present invention, by reducing thickness and layer end bonding, makes asphalt surface course ensure to be in the pressure zone of road structure bending resistance section, does not produce flexural tensile stress, thereby eliminates the curved fatigue failure of drawing.
The demonstration of experimental road testing result, when bituminous sheaths bed thickness 3cm, indices exceedes second grade highway standard promulgated by the ministries or commissions of the Central Government; When bituminous sheaths bed thickness 4cm, indices exceedes speedway standard promulgated by the ministries or commissions of the Central Government.
The demonstration of experimental road testing result, a layer end adhesion strength reaches 0.8MPa-1.1MPa, and at the bottom of actual layer, shear stress only has 0.1MPa to 0.3MPa, ensures there will not be passing disease.
Note: the bonding oil that the oil reservoir that bonds when test uses, preferably use AH70#, AH90# pitch or SBS modified bitumen or sulfur modified pitch, can ensure or higher than above-mentioned technique effect.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210015253.7A CN102561142B (en) | 2012-01-18 | 2012-01-18 | Limit ultrathin asphalt pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210015253.7A CN102561142B (en) | 2012-01-18 | 2012-01-18 | Limit ultrathin asphalt pavement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102561142A CN102561142A (en) | 2012-07-11 |
| CN102561142B true CN102561142B (en) | 2014-07-02 |
Family
ID=46407630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210015253.7A Expired - Fee Related CN102561142B (en) | 2012-01-18 | 2012-01-18 | Limit ultrathin asphalt pavement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102561142B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113957761B (en) * | 2021-11-02 | 2024-10-11 | 张靖 | Ultra-thin bituminous pavement of high-grade highway |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005226342A (en) * | 2004-02-13 | 2005-08-25 | Nippo Corporation:Kk | Low μ paved road surface and its construction method |
| CN1687526A (en) * | 2005-04-18 | 2005-10-26 | 西安高远公路养护技术有限公司 | Reconditioning tracks on asphalt pavement by using thin paste mixture of modified emulsified asphalt and construction method thereof |
| CN101148856A (en) * | 2007-11-12 | 2008-03-26 | 徐培华 | Asphalt macadam stress absorption layer and construction method thereof |
| CN101363210A (en) * | 2007-08-12 | 2009-02-11 | 北京中交路星公路技术有限公司 | Anti-cracking and waterproof asphalt pavement surface structure and construction method |
-
2012
- 2012-01-18 CN CN201210015253.7A patent/CN102561142B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005226342A (en) * | 2004-02-13 | 2005-08-25 | Nippo Corporation:Kk | Low μ paved road surface and its construction method |
| CN1687526A (en) * | 2005-04-18 | 2005-10-26 | 西安高远公路养护技术有限公司 | Reconditioning tracks on asphalt pavement by using thin paste mixture of modified emulsified asphalt and construction method thereof |
| CN101363210A (en) * | 2007-08-12 | 2009-02-11 | 北京中交路星公路技术有限公司 | Anti-cracking and waterproof asphalt pavement surface structure and construction method |
| CN101148856A (en) * | 2007-11-12 | 2008-03-26 | 徐培华 | Asphalt macadam stress absorption layer and construction method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 半刚性基层沥青路面面层合理厚度探讨;李治平;《内蒙古公路与运输》;20000330(第01期);正文第2-3节 * |
| 李治平.半刚性基层沥青路面面层合理厚度探讨.《内蒙古公路与运输》.2000,(第01期), |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102561142A (en) | 2012-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204343128U (en) | A kind of permanent seal cooling cement bridge floor thin layer paving structure | |
| CN103897410B (en) | Motorway and bridge composite modified asphalt | |
| CN103758004A (en) | base layer surface treatment method of asphalt pavement | |
| CN104446140A (en) | Modified polyurethane concrete thin layer paving material | |
| CN102561142B (en) | Limit ultrathin asphalt pavement | |
| CN203755106U (en) | Pavement structure of cross-sea bridge cement concrete bridge deck | |
| CN103669202A (en) | Road and bridge expansion joint structure | |
| CN203546588U (en) | FES (FRP (Fiber Reinforced Polymer)-EBM (Epoxy Bond Metal)-SMA (Stone Matrix Asphalt)) steel bridge floor pavement structure | |
| CN204753292U (en) | Spread structure with adding of black top layer on cement road surface | |
| CN106398240A (en) | High-modulus modified asphalt used for airplane parking areas, and production method thereof | |
| CN205115946U (en) | Pavement structure | |
| CN206279449U (en) | A kind of bridge deck pavement structure | |
| CN105625150B (en) | A kind of method that asphalt pavement pit repairs border reinforcement | |
| CN204039858U (en) | A kind of novel asphalt road | |
| CN103835233B (en) | A kind of orthotropic steel bridge deck paving structure and construction method thereof | |
| CN204690593U (en) | A kind of cement concrete bridge deck pitch thin layer paving structure | |
| CN204039864U (en) | Concrete structure above a kind of gap be applied in bridge or road | |
| CN204080583U (en) | A kind of basalt fibre road surface | |
| CN204778430U (en) | Sliding contact type gantry crane contact net assembly for railway construction frame laying base | |
| CN204780577U (en) | Stride footpath steel case roof beam bridge deck pavement layer structure greatly | |
| CN106634758A (en) | Anti-aging epoxy adhesive and application thereof | |
| CN205000248U (en) | Steel bridge deck pavement structure with omega shear force nail | |
| CN204753379U (en) | Double -deck epoxy asphalt concrete bridge deck pavement structure | |
| CN204551168U (en) | Asphalt pavement regeneration half flexibly jointed chain Rotating fields | |
| CN204753381U (en) | Modular flexible bridge deck pavement structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |