CN205804076U - A kind of porous asphalt pavement maintenance structure - Google Patents
A kind of porous asphalt pavement maintenance structure Download PDFInfo
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- CN205804076U CN205804076U CN201620408547.XU CN201620408547U CN205804076U CN 205804076 U CN205804076 U CN 205804076U CN 201620408547 U CN201620408547 U CN 201620408547U CN 205804076 U CN205804076 U CN 205804076U
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- asphalt pavement
- porous asphalt
- maintenance structure
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Abstract
This utility model provides a kind of porous asphalt pavement maintenance structure, and making is on roadbed, from roadbed upwards, is followed successively by underlayment, basic unit, sub-layer, water-proof tack coat, drainage blanket and maintenance structure sheaf；Described maintenance structure sheaf is laid by emulsified bitumen slurry mixture, and maintenance Laminate construction thickness is 0.5～2.0cm.This maintenance of surface structure construction time is short, can implement in the case of not affecting normal traffic, it is possible to closes paragraph in short distance traffic and is constructed, and construction impact on traffic circulation is greatly decreased.The maintenance of porous asphalt pavement is played a positive role by the maintenance structure that the utility model proposes, and can effectively reduce the grain that disperses of porous asphalt pavement, improves the anti-ability of dispersing of drainage index, extends the service life of porous asphalt pavement.
Description
Technical field
This utility model belongs to field of road, is specifically related to a kind of maintenance of surface structure.
Background technology
Asphalt pavement conserving structure is mainly used in the highway system that oneself builds, and delays road to occur broken
The bad time, and keep or improve pavement skid resistance, draining, anti-dazzle, the road property of noise reduction requirement
Can, but do not increase structural bearing capacity.The generation of maintenance structure sheaf is exactly substantially a kind of early stage
Defensive maintenance, is pavement structure one reinforcement, in the case of only function of surface decays,
In order to recover a kind of periodically conservation layer of the service function of road surface.
Porous asphalt pavement is a kind of typical skeleton-pore structure, exists a large amount of inside road surface
Connectivity gap, form abundant draining networking, rainwater can by this draining networking from top to down
Ooze to waterproof layer, then flow to gutter along road horizontal wall inscription.Although this Pavement Structure has row
Many performance advantages such as water, antiskid, Rut resistance, noise reduction.But due to its characteristics of macro-pore, rain
Water or foreign material corrode for a long time, and road surface there will be damage in various degree.Disperse and disperse cause
Pit is the structural destruction form that porous asphalt pavement is easiest to occur.The appearance of this disease
The service life on road surface, driving comfort level and safety can be had a strong impact on.Rule of thumb, once
Locally occur disease, follow-up building stones to disperse and can accelerate, present " Domino effect ".Row
During the application in face, water route, what industry specialists was concerned about the most is exactly the appearance of this disease
With the problem of preventing and treating.
At present, porous asphalt pavement the most gradually pushes away as a kind of novel pavement structure
Extensively, but it disperses and falls the disease problems such as grain and is the most effectively solved.In order to prevent dispersing
Serious consequence thus maintenance structure sheaf arise at the historic moment.
Utility model content
For the weak point of this area, the purpose of this utility model is to provide a kind of draining drip
Blue or green maintenance of surface structure.
The technical scheme realizing this utility model above-mentioned purpose is:
A kind of porous asphalt pavement maintenance structure, including porous asphalt pavement, is laid on described row
Maintenance structure sheaf on bituminous grout road surface, described maintenance structure sheaf is emulsified bitumen slurry mixture
Being laid, its thickness is 0.5～2.0cm.Wherein said emulsified bitumen slurry mixture voidage
Being 12～22%, infiltration coefficient should be greater than 3000ml/min,
Further, described porous asphalt pavement is arranged on roadbed, is upwards followed successively by from roadbed
Underlayment, basic unit, sub-layer, water-proof tack coat, drainage blanket, described underlayment, basic unit,
Sub-layer, water-proof tack coat, drainage blanket constitute porous asphalt pavement.
Wherein, described underlayment is lime-sand-clay mixture underlayment, and thickness is 15～20cm
Wherein, the thickness of described basic unit is 18～45cm, and described basic unit is framework compact type half
Rigid base or flexbile base.
Wherein, described sub-layer thickness is 5～20cm, for dense bitumen compound material.
Wherein, described water-proof tack coat is that modified pitch, modified emulsifying asphalt or rubber asphalt are broken
One in stone seal coat structure.
Wherein, described drainage blanket thickness is 2～12cm, for open gradation asphalt structure,
Its voidage is 18%～25%.
The beneficial effects of the utility model are:
The porous asphalt pavement maintenance structure that this utility model provides, by old drainage asphalt road
Surface, face making one coating emulsified asphalt slurry mixture, wherein emulsified bitumen slurry mixture space
Rate is 12～22%, and infiltration coefficient should be greater than 3000ml/min, is formed through 4～6h health preservings
A kind of thickness, at the maintenance structure sheaf of 0.5cm-2.0cm, has raising and improves former drainage asphalt
Road surface Rut resistance, water resistant mist, anti-disperse, the performance of noise reduction, durability, thus extend draining
The life-span of bituminous paving.This maintenance of surface structure construction time is short, can not affect normal traffic
In the case of implement, it is possible to short distance traffic close paragraph constructed, construction is greatly decreased
Impact on traffic circulation.
The maintenance of porous asphalt pavement is played positive by the maintenance structure that the utility model proposes
Effect, can effectively reduce the grain that disperses of porous asphalt pavement, improves drainage index
Anti-ability of dispersing, extends the service life of porous asphalt pavement.
Accompanying drawing explanation
Fig. 1 is the profile of porous asphalt pavement maintenance structure of the present utility model；
In figure, 1: maintenance structure sheaf；2: drainage blanket；3: water-proof tack coat；4: sub-layer；
5: basic unit；6: underlayment；7: roadbed.
Detailed description of the invention
Following example are used for illustrating this utility model, but are not limited to model of the present utility model
Enclose.Without departing substantially from this utility model spirit and essence in the case of, to this utility model method,
Amendment that step or condition are made or replacement, belong to protection domain of the present utility model.
If not specializing, technological means used in embodiment is ripe by those skilled in the art
The conventional means known.
Below in conjunction with the accompanying drawings and be embodied as that the utility model is described in further detail.
Embodiment 1
Seeing Fig. 1, the drainage asphalt pavement maintenance structure that the present embodiment provides, making is on road
On base 7, from roadbed 7 upwards, underlayment 6, basic unit 5, sub-layer 4, waterproof it is followed successively by
Tack coat 3, drainage blanket 2 and maintenance structure sheaf 1.
Wherein, underlayment 6 is lime-sand-clay mixture underlayment, and thickness is 18cm, and basic unit 5 is
Lime-fly ash stabilized macadam, thickness is 35cm, and sub-layer 4 is dense bitumen compound
AC20, thickness is 14cm.Water-proof tack coat 3 is rubber asphalt crushed stone sealing, rubber asphalt
Spread quantity is 1.6kg/m2, rubble consumption is 60% completely paved.Drainage blanket 2 is for opening level
Joining asphalt structure, thickness is 4cm, and its voidage is 19.6%, and infiltration coefficient is
5840ml/min.Maintenance structure sheaf is paved by emulsified bitumen slurry mixture and is formed, and its technology is closed
Key is by using certain time limit dry cleansing porous asphalt pavement surface to pave one layer of breast
Change bitumen slurries compound, be then passed through 5h health preserving, form a layer thickness at 1cm～1.5cm
Tar sand pulp layer, thus improve old porous asphalt pavement serviceability.Wherein emulsified asphalt is dilute
Slurry mixture gap rate is 18%, and infiltration coefficient is 5600ml/min
Above layers is all according to existing " standard specification for construction and acceptance of highway asphalt pavement "
(JTGF40-2004) implement.
Embodiment 2
The present embodiment provide drainage asphalt pavement maintenance structure, making on roadbed 7, from
Roadbed 7 upwards, is followed successively by underlayment 6, basic unit 5, sub-layer 4, water-proof tack coat 3, row
Water layer 2 and maintenance structure sheaf 1.
Wherein, underlayment 6 is lime-sand-clay mixture underlayment, and thickness is 18cm, and basic unit 5 is
Lime-fly ash stabilized macadam, thickness is 35cm, and sub-layer 4 is dense bitumen compound
AC20, thickness is 12cm.Water-proof tack coat 3 is rubber asphalt crushed stone sealing, rubber asphalt
Spread quantity is 1.8kg/m2, rubble consumption is 70% completely paved.Drainage blanket 2 is for opening level
Joining asphalt structure, thickness is 5cm, and its voidage is 19.2%, and infiltration coefficient is
5910ml/min.Maintenance structure sheaf is paved by emulsified bitumen slurry mixture and is formed, and its technology is closed
Key is by using certain time limit dry cleansing porous asphalt pavement surface to pave one layer of breast
Change bitumen slurries compound, be then passed through 6h health preserving, form a layer thickness at 1cm～1.5cm
Tar sand pulp layer, thus improve old porous asphalt pavement serviceability.Wherein emulsified asphalt is dilute
Slurry mixture gap rate is 18%, and infiltration coefficient is 5800ml/min
Above layers is all according to existing " standard specification for construction and acceptance of highway asphalt pavement "
(JTGF40-2004) implement.The above is only preferred implementation of the present utility model, should
When pointing out, for those skilled in the art, without departing from this utility model
On the premise of know-why, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection domain of the present utility model.
Claims (6)
1. a porous asphalt pavement maintenance structure, it is characterized in that, including porous asphalt pavement, the maintenance structure sheaf that is laid on described porous asphalt pavement, described maintenance structure sheaf is laid by emulsified bitumen slurry mixture, its thickness is 0.5～2.0cm, described emulsified bitumen slurry mixture voidage is 12～22%, and infiltration coefficient is more than 3000ml/min.
Porous asphalt pavement maintenance structure the most according to claim 1, it is characterized in that, upwards be followed successively by underlayment, basic unit, sub-layer, water-proof tack coat, drainage blanket, maintenance structure sheaf from roadbed, wherein underlayment, basic unit, sub-layer, water-proof tack coat, drainage blanket constitute porous asphalt pavement.
Porous asphalt pavement maintenance structure the most according to claim 2, it is characterised in that described underlayment is lime-sand-clay mixture underlayment, thickness is 15～20cm；The thickness of described basic unit is 18～45cm, and described basic unit is framework compact type semi-rigid type base or flexbile base.
Porous asphalt pavement maintenance structure the most according to claim 2, it is characterised in that described sub-layer thickness is 5～20cm, for dense bitumen compound material.
Porous asphalt pavement maintenance structure the most according to claim 2, it is characterised in that described water-proof tack coat is modified pitch, modified emulsifying asphalt or rubber asphalt crushed stone sealing structure.
Porous asphalt pavement maintenance structure the most according to claim 2, it is characterised in that the thickness of described drainage blanket is 2～12cm, for open gradation asphalt structure, voidage is 18～25%, and infiltration coefficient is more than 3000ml/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620408547.XU CN205804076U (en) | 2016-05-06 | 2016-05-06 | A kind of porous asphalt pavement maintenance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620408547.XU CN205804076U (en) | 2016-05-06 | 2016-05-06 | A kind of porous asphalt pavement maintenance structure |
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| CN205804076U true CN205804076U (en) | 2016-12-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881858A (en) * | 2017-12-20 | 2018-04-06 | 东南大学 | A kind of new railway sub-grade surface structure and its laying method |
| CN108239900A (en) * | 2016-12-27 | 2018-07-03 | 交通运输部公路科学研究所 | The porous asphalt pavement construction technology that a kind of adhesion coating synchronizes |
| CN110526624A (en) * | 2019-08-30 | 2019-12-03 | 中路高科(北京)公路技术有限公司 | Porous asphalt pavement anti-clogging material and its preparation and application |
-
2016
- 2016-05-06 CN CN201620408547.XU patent/CN205804076U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108239900A (en) * | 2016-12-27 | 2018-07-03 | 交通运输部公路科学研究所 | The porous asphalt pavement construction technology that a kind of adhesion coating synchronizes |
| CN107881858A (en) * | 2017-12-20 | 2018-04-06 | 东南大学 | A kind of new railway sub-grade surface structure and its laying method |
| CN110526624A (en) * | 2019-08-30 | 2019-12-03 | 中路高科(北京)公路技术有限公司 | Porous asphalt pavement anti-clogging material and its preparation and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191216 Address after: 100176 1204-3, floor 12, building 1, No. 22, Ronghua Middle Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: CRCC (Beijing) Engineering Materials Technology Co., Ltd Address before: 100088 Beijing city Haidian District Xitucheng Road No. 8 Co-patentee before: Zhonglu Gaoke (Beijing) Highway Technology Co., Ltd. Patentee before: Institute of Highway Science, Ministry of Transport |
|
| TR01 | Transfer of patent right |