CN208685373U - A kind of porous asphalt pavement and its in-situ heat regeneration conserve pavement structure - Google Patents
A kind of porous asphalt pavement and its in-situ heat regeneration conserve pavement structure Download PDFInfo
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- CN208685373U CN208685373U CN201821028438.0U CN201821028438U CN208685373U CN 208685373 U CN208685373 U CN 208685373U CN 201821028438 U CN201821028438 U CN 201821028438U CN 208685373 U CN208685373 U CN 208685373U
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Abstract
The utility model provides a kind of porous asphalt pavement and its in-situ heat regeneration maintenance pavement structure, porous structure superficial layer, the first dense-graded mix layer, the second dense-graded mix layer and semi-rigid supporting course including being arranged successively setting from top to bottom, wherein the porous structure superficial layer is open gradation particulate formula asphalt layer or open gradation particulate formula asphalt in-situ heat regeneration layer.Deck structure setting may make that road surface is with good stability, be unlikely to deform, to effectively reduce collapsing, be crushed and dropping off for road surface, the porous structure superficial layer is suitable for in-situ heat regeneration, be convenient for maintenance of surface.
Description
Technical field
The utility model relates to field of road, support more particularly to a kind of porous asphalt pavement and its in-situ heat regeneration
Protect pavement structure.
Background technique
There is porous asphalt pavement (porous asphalt) good " draining, noise reduction, antiskid " etc. to use function.With
Porous asphalt pavement application mileage increase and the increase of the length of service, how to provide effective maintenance measure is highway
The major issue that manager is faced.Porous asphalt pavement is as a kind of big gap pavement structure, draining, noise reduction, antiskid etc.
Function is related with porous structure.With the increase of the length of service, the sundries such as one side dust enter inside pavement structure, blocking
Gap；On the other hand under vehicular load and the effect of weather environment comprehensive, porous asphalt pavement will appear aggregate crusher, fall grain
It disperses Deng caused by disease, can equally gap be caused to block.In addition, porous asphalt pavement is also possible to track, crack, hole occur
The diseases such as slot need to repair maintenance in time.
Utility model content
What the utility model solved is to exist to block broken etc. ask after porous asphalt pavement in the prior art is used for a long time
Topic, needs road pavement timely to be maintained, and then provide the porous pavements structure that a kind of stability is good, easily conserves.
The technical scheme in the invention for solving the above technical problem are as follows:
A kind of porous asphalt pavement structure, the porous structure superficial layer, first close including being arranged successively setting from top to bottom
Graded mixture layer, the second dense-graded mix layer and semi-rigid supporting course, wherein during the first dense-graded mix layer is
Grain formula asphalt layer, the first dense-graded mix layer with a thickness of 3~6cm, the second dense-graded mix layer
For coarse grain formula asphalt layer, the second dense-graded mix layer with a thickness of 5~8cm, the porous structure superficial layer
For open gradation particulate formula asphalt layer.
The porous structure superficial layer with a thickness of 2~5cm, the maximum nominal of mixture in the porous structure superficial layer
Partial size is 9.5mm or 13.2mm；The voidage of the porous structure superficial layer is more than or equal to 20%.
The nominal maximum aggregate size of the asphalt of the first dense-graded mix layer be 16mm or 19mm, described second
The nominal maximum aggregate size of the asphalt of dense-graded mix layer is 26.5mm.
The semi-rigid supporting course is cement stabilized macadam base；The semi-rigid supporting course with a thickness of 35~40cm.
It further include the underlayment below the base, the underlayment is semi-rigid underlayment.
The semi-rigid underlayment is two-ash soil layer.
The underlayment with a thickness of 15~20cm.
A kind of porous asphalt pavement in-situ heat regeneration maintenance pavement structure, including being arranged successively the porous of setting from top to bottom
Structural facer, the first dense-graded mix layer, the second dense-graded mix layer and semi-rigid supporting course, wherein described first is close
Graded mixture layer is middle grain formula asphalt layer, the first dense-graded mix layer with a thickness of 3~6cm, described the
Two dense-graded mix layers be coarse grain formula asphalt layer, the second dense-graded mix layer with a thickness of 5~8cm, institute
Stating porous structure superficial layer is open gradation particulate formula asphalt in-situ heat regeneration layer.
The voidage of the porous structure superficial layer is more than or equal to 18%.
The porous structure superficial layer with a thickness of 2~5cm.
Porous asphalt pavement described in the utility model and its in-situ heat regeneration conserve pavement structure, have porous structure
Superficial layer, while being additionally provided with the first dense-graded mix layer, the second dense-graded mix layer and semi-rigid supporting course, level knot
Structure setting may make that road surface is with good stability, be unlikely to deform, to effectively reduce collapsing, be crushed and dropping off for road surface.
The nominal maximum aggregate size of mixture is 9.5mm or 13.2mm, this model in the preferably described porous structure superficial layer of the utility model
The deck structure for enclosing pellet composition has excellent tightness, and an anti-ability of dispersing for bituminous pavement can be improved.Described first
Dense-graded mix layer is preferably grain formula asphalt layer in close-graded, and thickness is suitably 3~6cm, preferably 6cm, selection
The nominal maximum aggregate size of asphalt is 16mm or 19mm, preferably 19mm；Second dense-graded mix layer is close-graded coarse grain
Formula asphalt layer, with a thickness of 5~8cm, preferably 8cm, the nominal maximum aggregate size of the asphalt of selection is 26.5mm；Half
Rigid base preferably uses cement stabilized macadam making to form with a thickness of 35~40cm, preferably 38cm, semi-rigid type base.
The porous structure superficial layer with a thickness of 2~5cm, preferably 4cm so that road surface has both drainage performance and stability
Energy.
As preferred embodiment, underlayment is additionally provided with below the semi-rigid type base, the underlayment is excellent
It is selected as semi-rigid underlayment, with a thickness of 15~20cm, preferably 19cm, the underlayment 5 of the present embodiment is formed using two-ash soil making.
The porous structure superficial layer is preferably that open gradation particulate formula asphalt layer is suitable for regard to underground heat again with a thickness of 2-4cm
It is raw, it is convenient for maintenance of surface.Hot in-place recycling technology is a kind of continuous on-site heat regeneration operation mode, have it is economical, efficiently,
Quickly, the features such as environmental protection, saving.Porous asphalt pavement is punished using hot in-place recycling technology, porous drip can be restored
The pavement performance on green road surface and function is used, while by gathering materials and high viscosity modified pitch using porous asphalt pavement is good
Material has saved a large amount of road-making material, and will not generate discarded mixture, has resource-effective, ecological, environmental protective, energy conservation high
The feature that effect, service are promoted, while also bringing along significant economic, society and environmental benefit.
Porous asphalt pavement described in the utility model and its in-situ heat regeneration conserve pavement structure, preferably described porous
The voidage of structural facer is more than or equal to 20%, and the porous pavements in-situ heat regeneration layer within the scope of this gap still may be used
Keep porous structure.
In order to make the technical side of porous asphalt pavement and its in-situ heat regeneration maintenance pavement structure described in the utility model
Case is more clearly understood, and below in conjunction with specific drawings and the specific embodiments, the present invention will be further described in detail
Detailed description of the invention
It is the knot of porous asphalt pavement and its in-situ heat regeneration maintenance pavement structure described in the utility model as shown in Figure 1
Structure schematic diagram；
Wherein appended drawing reference are as follows:
1- porous structure superficial layer；2- the first dense-graded mix layer；3- the second dense-graded mix layer；4- is semi-rigid to be held
Double-layer；The semi-rigid underlayment of 5-.
Specific embodiment
Embodiment 1
A kind of porous asphalt pavement structure is present embodiments provided, as shown in Figure 1, the porous pavements structure includes by upper
It is arranged successively the porous structure superficial layer 1, the first dense-graded mix layer 2, the second dense-graded mix layer 3 and half of setting downwards
Rigid supporting course 4, wherein the porous structure superficial layer 1 is open gradation particulate formula asphalt layer, the porous structure table
The nominal maximum aggregate size of mixture is 9.5mm in surface layer 1.The porous structure superficial layer 1 with a thickness of 4cm, the porous knot
The voidage of structure superficial layer 1 is 20%.
The first dense-graded mix layer 2 is grain formula asphalt layer in close-graded, the first close-graded mixing
The nominal maximum aggregate size of the asphalt of the bed of material 2 be 16mm, the first dense-graded mix layer 2 with a thickness of 6cm；It is described
Second dense-graded mix layer 3 is close-graded coarse grain formula asphalt layer, and the pitch of the second dense-graded mix layer 3 is mixed
Close material nominal maximum aggregate size be 26.5mm, the second dense-graded mix layer 3 with a thickness of 8cm.The semi-rigid load-bearing
Layer 4 be cement stabilized macadam base, the semi-rigid supporting course 4 with a thickness of 38cm.The porous asphalt pavement structure is also wrapped
The underlayment being located at below the base is included, the underlayment is semi-rigid underlayment 5, semi-rigid base described in the present embodiment
Layer 5 be two-ash soil layer, the underlayment with a thickness of 19cm.Porous asphalt pavement structure described in the present embodiment has excellent
Stability.
Embodiment 2
A kind of porous asphalt pavement in-situ heat regeneration maintenance pavement structure is present embodiments provided, as shown in Figure 1, described more
Hole asphalt pavement structure include the porous structure superficial layer 1 for being arranged successively setting from top to bottom, the first dense-graded mix layer 2,
Second dense-graded mix layer 3 and semi-rigid supporting course 4, wherein the porous structure superficial layer 1 is open gradation particulate formula pitch
Mixture in-situ heat regeneration layer, the mixture of the in-situ heat regeneration layer is by accounting for the open gradation particulate formula of old pavement material 100%
The new pitch mixture mixing of asphalt and the 10.0wt% for accounting for old material, the open gradation particulate formula asphalt is most
Big nominal particle diameter is 13.2mm, has saved asphalt dosage, has reduced engineering cost, also has significant energy-saving and emission-reduction effect
Benefit is conducive to environmental protection.The voidage of the old pavement is 20%, and the voidage of the in-situ heat regeneration layer is 18%.Such as
Select close-graded particulate formula asphalt by hot in-place recycling technology making, then voidage is then less than 5%.
The porous structure superficial layer 1 with a thickness of 4cm, the voidage of the porous structure superficial layer 1 is 18%；It is described
First dense-graded mix layer 2 is grain formula asphalt layer in close-graded, and the pitch of the first dense-graded mix layer 2 is mixed
Close material nominal maximum aggregate size be 16mm, the first dense-graded mix layer 2 with a thickness of 6cm；The second level of confidentiality compounding
The conjunction bed of material 3 is close-graded coarse grain formula asphalt layer, the most grand duke of the asphalt of the second dense-graded mix layer 3
Partial size is referred to as 26.5mm, the second dense-graded mix layer 3 with a thickness of 8cm.The semi-rigid supporting course 4 is cement stabilizing
Crushed rock base course, the semi-rigid supporting course 4 with a thickness of 38cm.The porous asphalt pavement structure further includes being located at the base
The underlayment of lower section, the underlayment are semi-rigid underlayment 5, and semi-rigid underlayment 5 described in the present embodiment is two-ash soil layer,
The underlayment with a thickness of 19cm.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the protection scope of the utility model patent should be subject to the claims.
Claims (10)
1. a kind of porous asphalt pavement structure, which is characterized in that the porous structure surface including being arranged successively setting from top to bottom
Layer, the first dense-graded mix layer, the second dense-graded mix layer and semi-rigid supporting course, wherein first close-graded mixes
The bed of material be middle grain formula asphalt layer, the first dense-graded mix layer with a thickness of 3~6cm, second close-graded
The mixing bed of material be coarse grain formula asphalt layer, the second dense-graded mix layer with a thickness of 5~8cm, the porous knot
Structure superficial layer is open gradation particulate formula asphalt layer.
2. porous asphalt pavement structure according to claim 1, which is characterized in that the thickness of the porous structure superficial layer
For 2~5cm, the nominal maximum aggregate size of mixture is 9.5mm or 13.2mm in the porous structure superficial layer；The porous structure
The voidage of superficial layer is more than or equal to 20%.
3. porous asphalt pavement structure according to claim 2, which is characterized in that the first dense-graded mix layer
The nominal maximum aggregate size of asphalt is 16mm or 19mm, the maximum of the asphalt of the second dense-graded mix layer
Nominal particle diameter is 26.5mm.
4. porous asphalt pavement structure according to claim 3, which is characterized in that the semi-rigid supporting course is that cement is steady
Determine crushed rock base course；The semi-rigid supporting course with a thickness of 35~40cm.
5. porous asphalt pavement structure according to claim 4, which is characterized in that further include being located at below the base
Underlayment, the underlayment are semi-rigid underlayment.
6. porous asphalt pavement structure according to claim 5, which is characterized in that the semi-rigid underlayment is two-ash soil
Layer.
7. porous asphalt pavement structure according to claim 6, which is characterized in that the underlayment with a thickness of 15~
20cm。
8. a kind of porous asphalt pavement in-situ heat regeneration conserves pavement structure, which is characterized in that including being arranged successively from top to bottom
The porous structure superficial layer of setting, the first dense-graded mix layer, the second dense-graded mix layer and semi-rigid supporting course, wherein
The first dense-graded mix layer is middle grain formula asphalt layer, the first dense-graded mix layer with a thickness of 3~
6cm, the second dense-graded mix layer be coarse grain formula asphalt layer, the second dense-graded mix layer with a thickness of
5~8cm, the porous structure superficial layer are open gradation particulate formula asphalt in-situ heat regeneration layer.
9. porous asphalt pavement in-situ heat regeneration according to claim 8 conserves pavement structure, which is characterized in that described more
The voidage of pore structure superficial layer is more than or equal to 18%.
10. porous asphalt pavement in-situ heat regeneration according to claim 9 conserves pavement structure, which is characterized in that described
Porous structure superficial layer with a thickness of 2~5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821028438.0U CN208685373U (en) | 2018-06-29 | 2018-06-29 | A kind of porous asphalt pavement and its in-situ heat regeneration conserve pavement structure |
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|---|---|---|---|
| CN201821028438.0U CN208685373U (en) | 2018-06-29 | 2018-06-29 | A kind of porous asphalt pavement and its in-situ heat regeneration conserve pavement structure |
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| CN208685373U true CN208685373U (en) | 2019-04-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115369711A (en) * | 2022-07-27 | 2022-11-22 | 交通运输部公路科学研究所 | In-situ thermal regeneration construction method for porous asphalt surface layer |
-
2018
- 2018-06-29 CN CN201821028438.0U patent/CN208685373U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115369711A (en) * | 2022-07-27 | 2022-11-22 | 交通运输部公路科学研究所 | In-situ thermal regeneration construction method for porous asphalt surface layer |
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