CN204224946U - A kind of composite type heat mixes heat paving ultrathin overlay paving structure - Google Patents
A kind of composite type heat mixes heat paving ultrathin overlay paving structure Download PDFInfo
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- CN204224946U CN204224946U CN201420623383.3U CN201420623383U CN204224946U CN 204224946 U CN204224946 U CN 204224946U CN 201420623383 U CN201420623383 U CN 201420623383U CN 204224946 U CN204224946 U CN 204224946U
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Abstract
The utility model belongs to highway maintenance field, be specifically related to a kind of composite type heat and mix heat paving ultrathin overlay paving structure, crushed stone sealing and ultra-thin wearing layer is comprised from the bottom to top from road surface, described crushed stone sealing comprises modified asphalt layer and macadam from the bottom to top, and described ultra-thin wearing layer is one deck hot asphalt mixture thin layer.The utility model combines the advantage of crushed stone sealing and ultra-thin wearing layer, there is the ability of excellent driving comfort, safety, durability, low noise and prevention reflection crack, by multilayer making crushed stone sealing for repairing rut, be specially adapted to newly-built or old cement concrete road and the serious old asphalt pavement of rut overlays engineering, be conducive to the spread of this maintenance technology.
Description
Technical field
The utility model belongs to highway maintenance field, be specifically related to a kind of composite type heat and mix heat paving ultrathin overlay paving structure, mainly be applicable to the maintenance overlay of speedway, Class I highway, major urban arterial highway road and free way each grade road old pavement, or the wearing layer of newly-built pavement of road.
Background technology
Ultra-thin wearing layer preventive maintenance is the technology given priority in recent years, this technology first spreading one deck modified emulsifying asphalt makes tack coat, pave hot asphalt mixture thin layer again, its pavement thickness is generally 1.5 ~ 2.5cm, and this technology is mainly used in the preventive maintenance of high-grade pitch or cement pavement and the corrective maintenance of slight disease, also can as the surface abrasion layer of newly-built road, it is the surface course that a kind of overlength is durable, there is antiskid, Rut resistance, the premium properties of abrasion resisting.But the place of ultra-thin wearing layer also Shortcomings, the adhesion stress of itself and old pavement is mainly from the modified emulsifying asphalt binding material sprayed, and the residue viscosity after breakdown of emulsion is less, and adhesion stress is not enough, particularly when Old cement concrete carries out making, adhesion stress is more inadequate.Meanwhile, because ultra-thin wearing layer does not establish stress absorbing layer, Reflective Cracking Resistance is also not enough.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of bonding with former road surface of can strengthening, and the composite type heat that simultaneously can also play stress absorption effect mixes heat paving ultrathin overlay paving structure.
For achieving the above object, the utility model can be achieved by the following technical programs:
A kind of composite type heat mixes heat paving ultrathin overlay paving structure, and comprise crushed stone sealing and ultra-thin wearing layer from the bottom to top from road surface, described crushed stone sealing comprises modified asphalt layer and macadam from the bottom to top, and described ultra-thin wearing layer is one deck hot asphalt mixture thin layer.
Further, described crushed stone sealing is one or more layers, when old pavement has serious rut, need not carry out the reparation of rut in advance, by multilayer making crushed stone sealing for repairing rut.
Further, the coverage scale of described crushed stone sealing is 60 ~ 80%.
Further, described modified asphalt layer is high-viscosity high-elasticity modified bitumen or rubber asphalt, has stronger adhesion stress.
Further, the thickness of described ultra-thin wearing layer is 1.5 ~ 2.5cm.
Further, the particle diameter of described macadam medium stone is 2 ~ 4mm.
Further, the particle diameter of described macadam medium stone is 4 ~ 6mm.
Further, the particle diameter of described macadam medium stone is 6 ~ 10mm.
Compared with prior art, the utility model has following beneficial effect:
1, have employed the high-viscosity high-elasticity modified bitumen with stronger adhesion stress or rubber asphalt at newly-built or old pavement making crushed stone sealing, compare the ultra-thin wearing layer that directly paves, ensure that there is stronger adhesion stress, prevent road surface decortication, passing etc.
2, have employed the high-viscosity high-elasticity modified bitumen with ultra-strong elasticity or rubber asphalt crushed stone sealing makes stress absorbing layer, the generation of reflection cracking in a pavement can be prevented.
3, when old pavement has serious rut, the reparation of rut need not being carried out in advance, by multilayer making crushed stone sealing for repairing rut, being specially adapted to old cement concrete road and the serious old asphalt pavement of rut overlays engineering.
4, the utility model adopts ultra-thin wearing layer as surface course, can improve the driving comfort of crushed stone sealing, reduces noise, reduces water smoke, strengthens abrasion performance and durability.
Generally speaking, the utility model combines the advantage of crushed stone sealing and ultra-thin wearing layer, there is the ability of excellent driving comfort, safety, durability, low noise and prevention reflection crack, by multilayer making crushed stone sealing for repairing rut, be specially adapted to newly-built or old cement concrete road and the serious old asphalt pavement of rut overlays engineering, be conducive to the spread of this maintenance technology.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: the former road surface of 1-, 2-crushed stone sealing, 21-modified asphalt layer, 22-macadam, 3-ultra-thin wearing layer.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is further described:
As shown in Figure 1, composite type heat described in the utility model mixes heat paving ultrathin overlay paving structure, and comprise crushed stone sealing 2 and ultra-thin wearing layer 3 from the bottom to top, crushed stone sealing 2 is on former road surface 1, and ultra-thin wearing layer 3 is on crushed stone sealing 2.Crushed stone sealing 2 comprises modified asphalt layer 21 and macadam 22 from the bottom to top, and ultra-thin wearing layer 3 comprises hot asphalt mixture thin layer.Crushed stone sealing 2 can making one or more layers, the coverage scale that crushed stone sealing 2 is layered on road surface is 60 ~ 80%.Ultra-thin wearing layer 3 making one deck, thickness is 1.5 ~ 2.5cm.
Preferably, modified asphalt layer 21 adopts high-viscosity high-elasticity modified bitumen or rubber asphalt, and the particle diameter of macadam 22 medium stone is 2 ~ 4mm, 4 ~ 6mm or 6 ~ 10mm.
The laying step that composite type heat described in the utility model mixes heat paving ultrathin overlay paving structure is as follows:
1, before construction, prospecting assessment is carried out to original road surface, select different modified bitumens as the binding material of crushed stone sealing 2 according to different requirements;
2, close traffic, cleans original road surface;
3, according to damaged degree and the rut situation on original road surface, select the size of ballast grain sizes, rubble adopts single grating particle diameter, size has 2 ~ 4mm usually, 4 ~ 6mm, 6 ~ 10mm etc. 3 grades, with synchronous macadam seal paver making one deck synchronous surface dressing 2, also can making Multi-layer synchronous crushed stone sealing 2 for repairing serious rut, the coverage scale of synchronous surface dressing 2 is 60 ~ 80%;
4, prepare hot-mix asphalt mixture, be transported to job site with bituminous mixture dumper;
5, the pave thickness of one deck step 4 preparation of ultra-thin wearing layer paver is used to be the hot-mix asphalt mixture thin layer of 1.5 ~ 2.5cm;
6, hot-mix asphalt mixture paves completely, adopts road roller to carry out several by designing requirement immediately and rolls, and ensures planarization and the compactness on road surface;
7, open to traffic.
For a person skilled in the art, according to above technical scheme and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the utility model claim.
Claims (8)
1. a composite type heat mixes heat paving ultrathin overlay paving structure, it is characterized in that: described composite type heat is mixed heat paving ultrathin overlay paving structure and comprised crushed stone sealing and ultra-thin wearing layer from the bottom to top from road surface, described crushed stone sealing comprises modified asphalt layer and macadam from the bottom to top, and described ultra-thin wearing layer is one deck hot asphalt mixture thin layer.
2. composite type heat according to claim 1 mixes heat paving ultrathin overlay paving structure, it is characterized in that: described crushed stone sealing is one or more layers.
3. composite type heat according to claim 1 and 2 mixes heat paving ultrathin overlay paving structure, it is characterized in that: the coverage scale of described crushed stone sealing is 60 ~ 80%.
4. composite type heat according to claim 1 and 2 mixes heat paving ultrathin overlay paving structure, it is characterized in that: described modified asphalt layer is high-viscosity high-elasticity modified bitumen or rubber asphalt.
5. composite type heat according to claim 1 mixes heat paving ultrathin overlay paving structure, it is characterized in that: the thickness of described ultra-thin wearing layer is 1.5 ~ 2.5cm.
6. composite type heat according to claim 1 mixes heat paving ultrathin overlay paving structure, it is characterized in that: the particle diameter of described macadam medium stone is 2 ~ 4mm.
7. composite type heat according to claim 1 mixes heat paving ultrathin overlay paving structure, it is characterized in that: the particle diameter of described macadam medium stone is 4 ~ 6mm.
8. composite type heat according to claim 1 mixes heat paving ultrathin overlay paving structure, it is characterized in that: the particle diameter of described macadam medium stone is 6 ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420623383.3U CN204224946U (en) | 2014-10-24 | 2014-10-24 | A kind of composite type heat mixes heat paving ultrathin overlay paving structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420623383.3U CN204224946U (en) | 2014-10-24 | 2014-10-24 | A kind of composite type heat mixes heat paving ultrathin overlay paving structure |
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| CN204224946U true CN204224946U (en) | 2015-03-25 |
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| CN201420623383.3U Active CN204224946U (en) | 2014-10-24 | 2014-10-24 | A kind of composite type heat mixes heat paving ultrathin overlay paving structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476164A (en) * | 2017-09-21 | 2017-12-15 | 南京林业大学 | Embedded ultra-thin wearing layer and its construction method for road upper layer |
| CN108457179A (en) * | 2018-04-17 | 2018-08-28 | 湖州市公路管理局 | Thin overlay structure and its construction method for Bridge Surface Paving by Cement transformation |
| CN108529929A (en) * | 2018-05-17 | 2018-09-14 | 江苏博程交通科技有限公司 | Improve the high-strength thin-layer bituminous layer of unsticking suppression ice material spraying Interface Construction depth |
| CN111172836A (en) * | 2020-01-20 | 2020-05-19 | 长安大学 | Multifunctional active composite seal layer pavement |
-
2014
- 2014-10-24 CN CN201420623383.3U patent/CN204224946U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476164A (en) * | 2017-09-21 | 2017-12-15 | 南京林业大学 | Embedded ultra-thin wearing layer and its construction method for road upper layer |
| CN108457179A (en) * | 2018-04-17 | 2018-08-28 | 湖州市公路管理局 | Thin overlay structure and its construction method for Bridge Surface Paving by Cement transformation |
| CN108529929A (en) * | 2018-05-17 | 2018-09-14 | 江苏博程交通科技有限公司 | Improve the high-strength thin-layer bituminous layer of unsticking suppression ice material spraying Interface Construction depth |
| CN108529929B (en) * | 2018-05-17 | 2021-08-17 | 江苏博程交通科技有限公司 | High-strength thin-layer asphalt layer for improving structural depth of debonding ice-suppressing material spraying interface |
| CN111172836A (en) * | 2020-01-20 | 2020-05-19 | 长安大学 | Multifunctional active composite seal layer pavement |
| CN111172836B (en) * | 2020-01-20 | 2023-11-03 | 长安大学 | Multifunctional active composite seal pavement |
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