CN201502016U - Asphalt pavement fiber reinforced lamina top facing - Google Patents
Asphalt pavement fiber reinforced lamina top facing Download PDFInfo
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- CN201502016U CN201502016U CN2009201119953U CN200920111995U CN201502016U CN 201502016 U CN201502016 U CN 201502016U CN 2009201119953 U CN2009201119953 U CN 2009201119953U CN 200920111995 U CN200920111995 U CN 200920111995U CN 201502016 U CN201502016 U CN 201502016U
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- asphalt pavement
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Abstract
Disclosed is an asphalt pavement fiber reinforced lamina top facing which relates to a high-grade road asphalt pavement structure, in particular to an asphalt pavement fiber reinforced lamina top facing structure. A waterproof anti-cracking layer and a stone mastic asphalt layer or a micro-surfacing wearing layer are sequentially paved on an old asphalt pavement from bottom to top, and the waterproof anti-cracking layer is a composite layer formed by spraying modified emulsified asphalt to double layers of glass fibers. As a pavement seal coat adopts fiber asphalt stress absorbing interlayer, the top facing has excellent waterproof and anti-cracking capabilities, tremendously improves durability of the asphalt pavement seal coat, prolongs the service life of the pavement and shortens construction time.
Description
Technical field
The utility model relates to a kind of high-grade highway asphalt pavement structure, especially flexible pavement fiber reinforcement thin overlay structure.
Background technology
Flexible pavement can present phenomenons such as cracking, loose, aging and wearing and tearing, gradually as untimely maintenance process under the long term of natural environment and car load, damaged road surface is subjected to the erosion of surface water, to make basic unit softening, the bulk strength on road surface descends, and causes pavement destruction.Destroy prematurely for fear of flexible pavement, be necessary to take certain preventive maintenance measure.Traditional maintenance of surface technology mainly contains two kinds: 1. bituminous surface treatment and 2. emulsified asphalt slurry seal.The top dressing main feature is spread the shop for gathering materials, pitch sprays and carries out separately, does not have filler (powder) without mixing and stirring.The outstanding characteristics of emulsified asphalt slurry seal are at normal temperatures, carry out mixing and stirring and paving of slurry mixture at the construction field (site).More than two kinds of seal technology all can repair original Asphalt Pavement Damage rapidly, and have waterproof, effect such as anti-skidding, smooth, wear-resisting, thereby effectively prolong service life of road surface.Yet along with the travel variation day by day of trend of overload of vehicle, heavy loading and vehicle canalization, the early stage infringement of flexible pavement increases the weight of greatly; Maintenance fund in addition can not be in time, and causes the part road surface to miss preventive maintenance opportunity, as still adopting traditional Slurry Seal Technology, can't guarantee the long-term intact use on road surface.
In recent years, some novel road surface seal technology obtain research at home gradually and use, such as fiber seal technology and modified emulsified asphalt slurry seal technology.
The fiber of the broken cutting of the special technology of fiber seal technology utilization is random direction and evenly distributes in the two-layer asphalt binder that evenly spills cloth up and down, overlap mutually, form the network winding structure with bituminous mixture, effectively raise the comprehensive mechanical properties such as tension, shearing resistance, resistance to compression and impact strength of seal, be equivalent on original road surface, overlay one deck and have high resiliency and high-intensity protection gauze pad.External practice shows that the fiber seal can prolong the service life on road surface greatly, reduces the road reflection crack, and good waterproof and anti-wear performance can be provided.The asphalt slurry seal coat technology then is to add the organic polymer material in the process of producing mulseal, thereby makes modified emulsifying asphalt.Carry out the application life that the slurry seal construction can effectively improve bituminous pavement property, prolong the road surface with modified emulsifying asphalt.But these new technologies wait to improve for the road surface repairing effect of heavy duty, canalization, and the construction of redeck trouble, and the time dean who needs is unfavorable for resuming traffic fast.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of flexible pavement fiber reinforcement thin overlay, is adapted to the stress absorption of heavy duty, canalized traffic condition, and dispersibility is good, has the characteristics of high water proofing property, high-wearing feature and quick construction.
Solving the scheme that technical problem of the present utility model adopts is: lay waterproof anticracking layer and asphalt-mastic-broken stone layer or little table place wearing layer on old asphalt pavement from bottom to up successively, this waterproof anticracking layer is that the bilayer at glass fiber sprays the composite bed that modified emulsifying asphalt is arranged.
The asphalt-mastic-broken stone layer on upper strata described in the utility model adopts the special-purpose SMA-10 compound antiskid wearing layer of paving the way, and its thickness is 20～30mm; Perhaps adopt pave the way special-purpose modified emulsifying asphalt and little table place wearing layer of wear-resisting fine grain rubble, its thickness is 8～10mm.
Described waterproof anticracking layer is in spraying modified mulseal, and synchronous cutting sprays glass fiber and forms, and its thickness is 1.5mm.
The utility model has the advantages that:
1. good Pavement Performance.With respect to traditional seal, fiber reinforcement seal tensile strength increases more than 30%, and anti-fatigue performance increases more than 30%, and anti-rut performance increases more than 300%.
2. quick construction.It is continuous that fiber stress absorbs the intermediate layer construction technology, greatly shortened the asphalt roads curing time, shortened the traffic open hour.
3. long pavement life.Because the fiber reinforcement seal has higher crack resistance, abrasion resistance, high water proofing property, high stability, thereby gives flexible pavement good durability.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Each label is represented successively among the figure: asphalt-mastic-broken stone layer 1, waterproof anticracking fiber-reinforced layer 2, old asphalt pavement 3.
The specific embodiment
Referring to Fig. 1, enhancing thin overlay described in the utility model is laid by old asphalt pavement 3 stacks of the asphalt-mastic-broken stone layer 1 (SMA) on upper strata, middle waterproof anticracking fiber-reinforced layer 2 and lower floor successively and is constituted.The SMA thin overlay adopts the special-purpose SMA-10 compound of paving the way, and its thickness is 20～30mm; If adopt little table place wearing layer, then can adopt the antiskid wearing layer of the mixing of pave the way special-purpose modified emulsifying asphalt and wear-resisting fine grain rubble, thickness is 8～10mm.Waterproof anticracking fiber-reinforced layer 2 is in spraying modified mulseal, and synchronous cutting sprays glass fiber and forms, and its thickness is 1.5mm.
The utility model has adopted fibre reinforced asphalt stress absorption waterproof anticracking layer, it is a kind of high resiliency, impermeable material, has good pliability, caking property, preferably tension, shearing resistance, resistance to compression, impact strength, stress absorption and dispersibility, preventing fatigue cracks ability. Have stronger stress absorption ability than traditional seal and thin overlay, can more effectively delay the reflection cracking in a pavement that the old asphalt pavement cracking causes; Simultaneously, because fibre reinforced asphalt stress absorption waterproof anticracking layer has good water shutoff performance, can stop rainwater to enter old asphalt pavement, basic unit even subgrade soils, can effectively avoid the road surface Moisture Damage to occur, thereby greatly improved cracking resistance and the durability of bituminous paving seal coat structure, prolonged the service life on road surface.
Claims (3)
1. flexible pavement fiber reinforcement thin overlay, it is characterized in that: lay waterproof anticracking layer and asphalt-mastic-broken stone layer or little table place wearing layer on old asphalt pavement from bottom to up successively, this waterproof anticracking layer is the composite bed that modified emulsifying asphalt is arranged in the bilayer sprinkling of glass fiber.
2. by the described flexible pavement fiber reinforcement of claim 1 thin overlay, it is characterized in that: the asphalt-mastic-broken stone layer on upper strata adopts the special-purpose SMA-10 compound antiskid wearing layer of paving the way, and its thickness is 20～30mm; Or adopting pave the way special-purpose modified emulsifying asphalt and little table place wearing layer of wear-resisting fine grain rubble, its thickness is 8～10mm.
3. by the described flexible pavement fiber reinforcement of claim 1 thin overlay, it is characterized in that: described waterproof anticracking layer is in spraying modified mulseal, and synchronous cutting sprays glass fiber and forms, and its thickness is 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201119953U CN201502016U (en) | 2009-09-25 | 2009-09-25 | Asphalt pavement fiber reinforced lamina top facing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201119953U CN201502016U (en) | 2009-09-25 | 2009-09-25 | Asphalt pavement fiber reinforced lamina top facing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502016U true CN201502016U (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201119953U Expired - Lifetime CN201502016U (en) | 2009-09-25 | 2009-09-25 | Asphalt pavement fiber reinforced lamina top facing |
Country Status (1)
| Country | Link |
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| CN (1) | CN201502016U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031744A (en) * | 2010-11-22 | 2011-04-27 | 长沙理工大学 | Composite pavement structure and construction method thereof |
| CN102505604A (en) * | 2011-11-18 | 2012-06-20 | 北京工业大学 | Anti-cracking interlayer for asphalt pavement |
| CN103485256A (en) * | 2013-09-11 | 2014-01-01 | 长安大学 | Grading glass fiber crushed stone seal coat preparation method |
| CN103774521A (en) * | 2012-10-23 | 2014-05-07 | 江苏增光复合材料科技有限公司 | Fiber-added ultrathin wearing course for bridge floor and construction method thereof |
| CN103774518A (en) * | 2012-10-23 | 2014-05-07 | 江苏增光复合材料科技有限公司 | Fiber reinforced bituminous pavement stress absorbing layer and construction method thereof |
| CN105672079A (en) * | 2016-01-21 | 2016-06-15 | 河南城建学院 | Construction method of crack-resisting sealing layer structure of asphalt pavement |
| CN105908589A (en) * | 2016-04-25 | 2016-08-31 | 江苏燕宁新材料科技发展有限公司 | Fiber-broken stone synchronous-sealing pavement maintenance method |
-
2009
- 2009-09-25 CN CN2009201119953U patent/CN201502016U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031744A (en) * | 2010-11-22 | 2011-04-27 | 长沙理工大学 | Composite pavement structure and construction method thereof |
| CN102031744B (en) * | 2010-11-22 | 2012-07-04 | 长沙理工大学 | Composite pavement structure and construction method thereof |
| CN102505604A (en) * | 2011-11-18 | 2012-06-20 | 北京工业大学 | Anti-cracking interlayer for asphalt pavement |
| CN102505604B (en) * | 2011-11-18 | 2014-01-01 | 北京工业大学 | Anti-cracking interlayer for asphalt pavement |
| CN103774521A (en) * | 2012-10-23 | 2014-05-07 | 江苏增光复合材料科技有限公司 | Fiber-added ultrathin wearing course for bridge floor and construction method thereof |
| CN103774518A (en) * | 2012-10-23 | 2014-05-07 | 江苏增光复合材料科技有限公司 | Fiber reinforced bituminous pavement stress absorbing layer and construction method thereof |
| CN103485256A (en) * | 2013-09-11 | 2014-01-01 | 长安大学 | Grading glass fiber crushed stone seal coat preparation method |
| CN105672079A (en) * | 2016-01-21 | 2016-06-15 | 河南城建学院 | Construction method of crack-resisting sealing layer structure of asphalt pavement |
| CN105908589A (en) * | 2016-04-25 | 2016-08-31 | 江苏燕宁新材料科技发展有限公司 | Fiber-broken stone synchronous-sealing pavement maintenance method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 650032 Yunnan province Kunming city ruilu No. 101 Yunnan Yunling highway maintenance Greening Engineering Company Limited Patentee after: YUNNAN GONGTOU CONSTRUCTION GROUP Co.,Ltd. Patentee after: CHONGQING JIAOTONG University Address before: 650032 Yunnan province Kunming city ruilu No. 101 Yunnan Yunling highway maintenance Greening Engineering Company Limited Patentee before: Yunnan referendum Construction Co.,Ltd. Patentee before: chongqing jiaotong university Address after: 650032 Yunnan province Kunming city ruilu No. 101 Yunnan Yunling highway maintenance Greening Engineering Company Limited Patentee after: Yunnan referendum Construction Co.,Ltd. Patentee after: CHONGQING JIAOTONG University Address before: 650032 Yunnan province Kunming city ruilu No. 101 Yunnan Yunling highway maintenance Greening Engineering Company Limited Patentee before: YUNNAN YUNLING HIGHWAY MAINTENANCE & GREENING ENGINEERING Co.,Ltd. Patentee before: chongqing jiaotong university |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100609 |