CN101148856B - Asphalt macadam stress absorption layer and construction method thereof - Google Patents
Asphalt macadam stress absorption layer and construction method thereof Download PDFInfo
- Publication number
- CN101148856B CN101148856B CN200710019042XA CN200710019042A CN101148856B CN 101148856 B CN101148856 B CN 101148856B CN 200710019042X A CN200710019042X A CN 200710019042XA CN 200710019042 A CN200710019042 A CN 200710019042A CN 101148856 B CN101148856 B CN 101148856B
- Authority
- CN
- China
- Prior art keywords
- asphalt
- layer
- stress absorption
- macadam
- mulseal
- 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
Landscapes
- Road Paving Structures (AREA)
Abstract
The present invention relates to asphalt road engineering, and is especially one stress absorbing asphalt macadam layer and its construction process. The stress absorbing asphalt macadam layer can absorb and reduce the stress of asphalt road surface or composite road surface and weaken the transmission of cracks to the surface asphalt layer. It consists of one macadam layer, one stress absorbing and binding layer and one connecting layer from top to bottom. Its construction process includes the steps of spreading connecting layer material onto the base layer, spreading the stress absorbing and binding layer and spreading the macadam layer. The stress absorbing and binding layer has material of polymer modified emulsified asphalt, high viscosity emulsified asphalt, hot SBS modified asphalt or rubber modified asphalt; and the connecting layer has material of kerosene diluted asphalt, high permeability emulsified asphalt, concrete interface adhesive, polymer modified emulsified asphalt or hot modified asphalt.
Description
Technical field
The present invention relates to flexible pavement engineering field, particularly a kind of asphalt macadam stress absorption layer structure and job practices thereof.Be applicable to the inter-laminar stress that absorbs and subdue semi-rigid type base asphalt surface course or composite pavement, play effects such as waterproof, bonding and protection sub-layer simultaneously.
Background technology
At present, high-grade highway flexible pavement basic unit and the subbase of China more than 90% adopts semi-rigid hydraulic material, as with semi-rigid type bases such as stabilization gravels such as cement, lime, flyash, gravels, become the major structural types of China Higher level asphalt highway, and obtained applying widely.
Along with the continuous development of transport need, in a large amount of engineering practices, find that semi-rigid type base also exists some shortcomings.Because it is relatively more responsive that semi-rigid material changes temperature and humidity, swell-shrink coefficient is big, in its intensity forming process and during the operation, is easy to produce shrinkage crack and low temperature shrinkage crack.Under road traffic load stress and temperature changing stress act on repeatedly, tensile stress between semi-rigid type base and bitumen layer, shear stress present the variation development of various complexity, impel this shrinkage crack and the shrinkage crack of semi-rigid type base will continue expansion, and then reflex to asphalt surface course formation reflection crack.It is attractive in appearance not only to influence the road surface, and has destroyed the globality and the continuity of road structure, and causes the weakening (increasing modulus of resilience reduction etc. as place, crack flexure) of structural strength to a certain extent; Simultaneously, along with the immersion of rainwater or snow-broth, make to produce the semi-rigid type base deliquescing inside and wash away and the mud pumping phenomenon, thereby the destruction on aggravation road surface is shortened the application life on road surface.
Compare with semi-rigid asphalt pavement, cement concrete pavement belongs to typical rigid pavement structure, because many seams need be established in the rigid pavement, these seams have not only influenced road-ability, and cause bigger noise, and seam is again the weak spot of road structure simultaneously, if deal with improperly, under vehicular load and climatic influences, multiple diseases such as disconnected plate, cracking, purt mud, differential settlement, pitted skin, hole groove occur, thereby greatly reduce the functional performance on road surface.For improving this defective of cement concrete pavement, a kind of in recent years novel road surface structure---composite pavement (promptly overlaying bitumen layer on cement concrete pavement) is used widely.But after cement concrete pavement overlays bitumen layer, in the pitch overlay stress concentration phenomenon appears because near the displacement of cement concrete slab seam crossing causes above the seam, cement concrete slab rigid material self is strong to temperature and humidity variation sensitiveness in addition, drive the pitch overlay during its contraction or expansion and corresponding shrinkage strain occurs, this inter-laminar stress causes pavement cracking after reflexing to asphalt mixture surfacing, under the effect repeatedly of carload and temperature, water enters behind the crack and then the aggravation pavement destruction, has a strong impact on the functional performance and the application life of road structure.
Summary of the invention
Problem to be solved by this invention provides a kind of asphalt macadam stress absorption layer and job practices thereof, this stress absorbing layer is arranged on semi-rigid asphalt pavement interlayer junction or composite pavement interlayer junction, can absorb and subdue inter-laminar stress, weaken the shrinkage crack (comprising warm draw seam and shrinkage crack) of semi-rigid type base or cement concrete and reflection crack to the asphalt surface course transmission.
The technical scheme that addresses the above problem is: between the cement concrete pavement that the asphalt macadam stress absorption layer that is provided is arranged on the bitumen layer of semi-rigid type base and its top making or composite pavement and the bitumen layer of its top overlay, said asphalt macadam stress absorption layer is from the top down successively by macadam, stress absorption tack coat and articulamentum are formed, and wherein the material of stress absorption tack coat is: polymer modification mulseal (as SBR modified emulsifying asphalt or EVA modified emulsifying asphalt etc.), the high viscosity mulseal, a kind of in SBS heat modification pitch or the rubber modified asphalt; The material of articulamentum is: kerosene cutback asphalt, height ooze a kind of in mulseal, concrete interface cementing agent, polymer modification mulseal or the heat modification pitch.
For semi-rigid type base, said articulamentum is also referred to as layer, and its material can adopt kerosene cutback asphalt or high ooze a kind of in the mulseal.
The shared weight ratio of above-mentioned kerosene cutback asphalt medium pitch can be 50～70%.
For the cement concrete pavement of composite pavement, articulamentum is also referred to as the interface adhesion coating, and its material can adopt a kind of in concrete interface cementing agent, polymer modification mulseal or the heat modification pitch.
Above-mentioned ballast grain sizes is: hard, coarse, wear-resisting and clean one or both of 5～10mm, 10～15mm or 10～20mm.
The construction method step of asphalt macadam stress absorption layer of the present invention is as follows:
(1) semi-rigid type base or cement concrete pavement surface are carried out plucking, purified treatment;
(2) spill cloth articulamentum material, said articulamentum material is: kerosene cutback asphalt, height ooze a kind of in mulseal, concrete interface cementing agent, polymer modification mulseal (as SBR or EVA modified emulsifying asphalt etc.) or the heat modification pitch;
(3) spill cloth stress absorption bonding layer material, said stress absorption bonding layer material is a kind of in polymer modification mulseal, high viscosity mulseal, SBS heat modification pitch or the rubber modified asphalt;
(4) spreading rubble;
(5) rubber tire rolls;
(6) can implement the laying of asphalt surface course to the Construction traffic open to traffic after the health.
Above-mentioned steps (3) and step (4) are preferably carried out synchronously, promptly spill behind the cloth stress absorption binding material in several seconds spreading rubble material immediately.Be controlled at 3～6 seconds the blanking time of step (3) and step (4) generally speaking.
Advantage of the present invention is: stress absorbing layer of the present invention effectively absorbs and has subdued semi-rigid asphalt pavement or composite pavement inter-laminar stress, weakens the shrinkage crack of semi-rigid type base or cement concrete pavement and reflection crack to the asphalt surface course transmission.Can make simultaneously the cement concrete pavement of semi-rigid type base or composite pavement become as a whole with the asphalt surface course secure bond of its top making; waterproof and tack coat are united two into one; not only play waterproof action, and sub-layer is played the certain protection effect.Effectively improve the road surface functional performance, prolong service life of road surface, reduce later stage highway maintenance cost.Mechanized is convenient in the present invention, and construction technology is easy, and construction speed is fast, and integrated cost is low.
The present invention also can be used for high-grade highway cement concrete bridge floor waterproofing.
Description of drawings
Fig. 1 is a kind of structural representation of stress absorbing layer of the present invention.
Fig. 2 is second kind of structural representation of stress absorbing layer of the present invention.
Embodiment 1
Below in conjunction with Fig. 1 the construction sequence of present embodiment is illustrated.
(1) semi-rigid type base 1 is a lime fine coal stabilization gravel.Before semi-rigid type base rolls the back health or health after three days, in time adopting brusher (car) that the substrate surface hacking also will be floated ash blows off, the top layer aggregate particle is partly exposed, substrate surface is still had the position of " minute surface " phenomenon, adopt small-sized milling machine to carry out local milling hacking and cleaning is handled;
(2) adopt full-automatic pitch sprinkling car to spill cloth articulamentum (saturating layer) material 2: kerosene cutback asphalt (pitch: kerosene=60: 40), spill cloth amount 0.5～0.8kg/m
2, spill Bu Wendu and be not higher than 70 ℃;
(3) treat that laminar surface is little dried, adopt full-automatic pitch sprinkling car to spill cloth SBR modified emulsifying asphalt stress absorption binding material 3, spill cloth amount 0.3～0.8kg/m
2, spill 150～170 ℃ of Bu Wendu;
(4) adopt full-automatic rubble truck spreader spreading rubble 4, rubble specification 5～10mm, coverage scale 70～80%;
(5) rubber tire rolls, and makes rubble and pitch bonding good.It is slow that rolling speed is wanted, and should adopt 1.5～2.0km/h;
(6) construction was finished the rear enclosed health 3 days, got final product open to traffic or carried out the construction of asphalt surface course 5 on it.
Embodiment 2
Construction sequence is substantially the same manner as Example 1, and different is: adopt the synchronous surface dressing car to spill cloth stress absorption binding material and spreading rubble simultaneously, its time interval is 3～6 seconds; Semi-rigid type base is a cement stabilized macadam; Antireflective material layer is that height oozes mulseal, spills cloth amount 0.4～0.8kg/m
2, spill 150～170 ℃ of Bu Wendu; The stress absorption binding material is the high viscosity mulseal, spills cloth amount 0.4～1.0kg/m
2, spill 160～180 ℃ of Bu Wendu;
Embodiment 3
The basic unit of composite pavement is a cement concrete pavement.
(1) adopts milling machine that the milling plucking is carried out in the rigid pavement, make the rigid pavement form coarse, concavo-convex surface texture structure, and surperficial floating dust is cleaned, blows off;
(2) smear or spill cloth articulamentum (interface adhesion coating) material: the concrete interface binding material;
(3) adopt full-automatic pitch sprinkling car to spill cloth stress absorption binding material: SBS heat modification pitch, spill cloth amount 0.8～2.0kg/m
2, spill 170～180 ℃ of Bu Wendu;
(4) take full-automatic crushed stone sealing car spreading rubble, rubble specification 10～20mm, coverage scale 70～80%;
(5) rubber tire rolls, and makes rubble and pitch bonding good.
(6) health.
Embodiment 4
Composite pavement basic unit is a cement concrete pavement.Construction sequence is substantially the same manner as Example 3, and different is: adopt the synchronous surface dressing car to spill cloth stress absorption binding material and spreading rubble simultaneously, its time interval is 3～6 seconds; Articulamentum (interface adhesion coating) material: the high viscosity mulseal, spill cloth amount 0.4～1.0kg/m
2, spill 160～180 ℃ of Bu Wendu; The stress absorption binding material: rubber modified asphalt, spill cloth amount 1.0～2.5kg/m
2, spill 180～190 ℃ of Bu Wendu.
Embodiment 5
Referring to Fig. 2: composite pavement basic unit is a cement concrete pavement 21, interface sticking material 22 is the high viscosity mulseal, construction sequence is substantially the same manner as Example 3, different is: the spreading rubble 4 that spills cloth stress absorption binding material 3 and step (4) of step (3) respectively carries out twice construction, after to be first pass step (3) with step (4) construction finish immediately repeating step (3) carry out second time construction with step (4), wherein the rubble of second time (4) is that (specification is less than 10～20mm) of first pass, coverage scale 70～80% for 5～10mm or 10～15mm.
Embodiment 6
Composite pavement basic unit is a cement concrete pavement.Construction sequence is substantially the same manner as Example 5, and different is: adopt the synchronous surface dressing car to spill cloth stress absorption binding material 3 and spreading rubble 4 simultaneously, its time interval is 3～6 seconds.
Through test and detection, the stress absorbing layer performance of the foregoing description is as follows:
| Project | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Test method |
| Shear strength MPa (60 ℃) | 0.43 | 0.48 | 0.42 | 0.44 | 0.42 | The shear strength instrument |
| Water percolating capacity (ml/min) | 0 | 0.5 | 0 | 1.5 | 2.0 | T0971 |
| Wheels-locked testing (having or not skin breakage, passing or intermediate peeling) | Do not have | Do not have | Do not have | Do not have | Do not have | Stop so that 50km/h is anxious with the BZZ-60 standard automobile after 7 days |
From the above, stress absorbing layer shear strength of the present invention is higher, and interlayer is in conjunction with better, and anti-seepage effect is obvious.
Claims (3)
1. asphalt macadam stress absorption layer, between the cement concrete pavement that is arranged on the bitumen layer of semi-rigid type base and its top making or composite pavement and the bitumen layer of its top overlay, it is characterized in that said asphalt macadam stress absorption layer is made up of macadam, stress absorption tack coat and articulamentum from the top down successively, wherein the material of stress absorption tack coat is: a kind of in polymer modification mulseal, high viscosity mulseal, SBS heat modification pitch or the rubber modified asphalt; The material of articulamentum is: kerosene cutback asphalt, height ooze a kind of in mulseal, concrete interface cementing agent, polymer modification mulseal or the heat modification pitch, the shared weight ratio of said kerosene cutback asphalt medium pitch is 50～70%, and said polymer modification mulseal is SBR modified emulsifying asphalt or EVA modified emulsifying asphalt; The ballast grain sizes of macadam is one or both among 5～10mm, 10～15mm or the 10～20mm.
2. realize the job practices of the described asphalt macadam stress absorption layer of claim 1, its step is as follows:
(1) to semi-rigid type base or cement concrete pavement surface purify, plucking handles;
(2) spill cloth articulamentum material, said articulamentum material is a kind of in kerosene cutback asphalt, SBR modified emulsifying asphalt, EVA modified emulsifying asphalt, concrete interface cementing agent or the heat modification pitch;
(3) spill cloth stress absorption bonding layer material, said stress absorption bonding layer material is a kind of in SBR modified emulsifying asphalt, EVA modified emulsifying asphalt, high viscosity mulseal, SBS heat modification pitch or the rubber modified asphalt;
(4) spreading rubble;
(5) rubber tire rolls.
3. job practices according to claim 2 is characterized in that step (3) and step (4) carry out synchronously, promptly spills behind the cloth stress absorption binding material in several seconds spreading rubble immediately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710019042XA CN101148856B (en) | 2007-11-12 | 2007-11-12 | Asphalt macadam stress absorption layer and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710019042XA CN101148856B (en) | 2007-11-12 | 2007-11-12 | Asphalt macadam stress absorption layer and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101148856A CN101148856A (en) | 2008-03-26 |
| CN101148856B true CN101148856B (en) | 2010-11-03 |
Family
ID=39249546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710019042XA Expired - Fee Related CN101148856B (en) | 2007-11-12 | 2007-11-12 | Asphalt macadam stress absorption layer and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101148856B (en) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885870B (en) * | 2010-08-11 | 2012-10-10 | 陕西长大博源公路养护科技有限公司 | High-viscosity thin-layer bituminous mixture modifier and application thereof |
| CN101982610A (en) * | 2010-11-04 | 2011-03-02 | 北京市公路桥梁建设集团有限公司 | Hot-distribution rubber bituminous pavement and construction method thereof |
| CN102173696A (en) * | 2011-02-15 | 2011-09-07 | 山东大学 | Pavement permeable stress absorption layer and preparation process thereof |
| CN102352593B (en) * | 2011-08-17 | 2014-06-11 | 华南理工大学 | Fiber-reinforced rubber asphalt stress absorbing layer and construction method thereof |
| CN102425092A (en) * | 2011-09-22 | 2012-04-25 | 西安国琳实业股份有限公司 | Ultra-viscous seal coat on bituminous pavement and construction method thereof |
| CN102733284B (en) * | 2011-12-23 | 2015-01-21 | 上海浦东路桥建设股份有限公司 | Double-layer rubber asphalt concrete structure for inhibiting reflection cracks of pavement and pavement method |
| CN102561142B (en) * | 2012-01-18 | 2014-07-02 | 张靖 | Limit ultrathin asphalt pavement |
| CN103114510B (en) * | 2013-01-21 | 2014-05-14 | 合肥工业大学 | Bituminous pavement provided with lattice structure transition compound layer and construction method thereof |
| CN103074831B (en) * | 2013-02-06 | 2014-11-05 | 中国电力工程顾问集团西南电力设计院 | Method for controlling converter transformer site and transport track crack in high-cold and high-altitude area |
| CN104343073A (en) * | 2013-08-09 | 2015-02-11 | 北京嘉格伟业筑路科技有限公司 | Carpet type quick paving belt, preparation method of carpet type quick paving belt and construction method applying carpet type quick paving belt |
| CN103882836B (en) * | 2014-03-02 | 2016-02-10 | 山东交通学院 | A kind of method and filling device controlling Sluice Pier crack |
| CN104060513A (en) * | 2014-06-27 | 2014-09-24 | 南京同安道路工程有限公司 | Modified asphalt graded broken stone stress absorption waterproof layer and manufacturing method thereof |
| CN104153270A (en) * | 2014-08-22 | 2014-11-19 | 重庆重交沥青砼再生制造有限公司 | Colored casting asphalt housing estate road surface |
| CN104294732B (en) * | 2014-10-20 | 2017-06-13 | 中交二公局东萌工程有限公司 | A kind of high-elastic viscous stress absorbed layer |
| CN105568778B (en) * | 2016-02-19 | 2017-06-20 | 中南大学 | A kind of fragment-free track slab and preparation method thereof |
| CN107059529A (en) * | 2017-01-16 | 2017-08-18 | 湖南大学 | Embedding stone structure and construction method between ultra-high performance concrete surface and upper layer |
| CN109881554B (en) * | 2017-02-12 | 2021-12-21 | 武汉誉城千里建工有限公司 | Construction method of modified asphalt cement concrete pavement |
| CN107130492A (en) * | 2017-05-03 | 2017-09-05 | 中交航局第工程有限公司 | A kind of asphalt roads construction technology of antiskid |
| CN107345870A (en) * | 2017-06-12 | 2017-11-14 | 扬州大学 | One kind evaluation rubber asphalt stress absorbing layer stress absorption ability specimen molding technique |
| CN107354834A (en) * | 2017-07-26 | 2017-11-17 | 北京中航空港建设工程有限公司 | The construction technique and reinforced structure complex in Civil Aviation Airport field road |
| CN107938460A (en) * | 2017-11-27 | 2018-04-20 | 中汽中心盐城汽车试验场有限公司 | A kind of automobile test low attached bituminous paving and its laying method |
| CN108824117B (en) * | 2018-07-20 | 2020-12-04 | 四川瑞通工程建设集团有限公司 | Asphalt pavement pit slot repairing construction process |
| CN110284392A (en) * | 2019-01-09 | 2019-09-27 | 广州市公路勘察设计有限公司 | A kind of stress absorbing layer and its construction method of high viscous superlastic Anti-reflective Crack of Overlaying |
| CN110284390A (en) * | 2019-07-10 | 2019-09-27 | 南京城建隧桥经营管理有限责任公司 | A kind of asphalt pavement structure and its method for paving for city tunnel deformation joint |
| CN111877104B (en) * | 2020-06-16 | 2021-12-07 | 中交第三公路工程局有限公司 | Construction method of modified rubber asphalt |
| CN113026470A (en) * | 2021-03-26 | 2021-06-25 | 河北雄安荣乌高速公路有限公司 | Enhanced base-surface layer interlayer bonding combined structure and optimization method thereof |
| CN113235350B (en) * | 2021-05-20 | 2022-05-17 | 福建新华夏建工集团有限公司 | Method for realizing concrete road reconstruction by additionally paving asphalt concrete surface layer |
| CN113863082B (en) * | 2021-10-11 | 2023-09-26 | 上海市政工程设计研究总院（集团）有限公司 | BRT station heavy-load traffic road section paving structure and construction method |
| CN114182595B (en) * | 2021-11-19 | 2023-08-11 | 山东省交通科学研究院 | Construction method of long-life asphalt road |
-
2007
- 2007-11-12 CN CN200710019042XA patent/CN101148856B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101148856A (en) | 2008-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101148856B (en) | Asphalt macadam stress absorption layer and construction method thereof | |
| CN101220579A (en) | Rubber powder modified asphalt macadam bridge surface waterproof layer and construction method | |
| CN106012746A (en) | Surface treatment method for achieving low noise and skid resistance of road | |
| CN101982610A (en) | Hot-distribution rubber bituminous pavement and construction method thereof | |
| KR101323022B1 (en) | Method of road repairing by using urethane sealant for repairing broken concrete near expansion joint | |
| CN100999894A (en) | Cement concrete bridge surface synchronous breakstone water-proof binding composite layer and construction method thereof | |
| CN102704366A (en) | High-performance rubberized asphalt composite seal coat and construction method thereof | |
| CN110846971A (en) | Ultrathin high-skid-resistance surface layer of asphalt pavement and construction method thereof | |
| CN111155402B (en) | Composite road maintenance top facing construction process | |
| CN215629105U (en) | Low-noise anti-slip thin-layer preventive maintenance asphalt pavement structure | |
| CN104264561A (en) | A non-earthing composite structure for a waterproof pavement layer of a top plate for a road tunnel | |
| CN207685618U (en) | A kind of Old cement concrete transform asphalt pavement structure as | |
| CN104032639A (en) | Ice condensation resistant ultra-thin wearing course pavement and preparation method thereof | |
| CN103850164A (en) | Construction method of long-service-life pass-through induced drainage pavement | |
| CN113322743A (en) | Epoxy modified cement pavement anti-skid wearing layer and construction method thereof | |
| WO2017000087A1 (en) | Bridge deck paving block, bridge paved with same and manufacturing method for bridge deck paving block | |
| CN103696366B (en) | Pavement structure and pavement method of combined steel bridge deck | |
| CN111411556A (en) | Multilayer fine surface preventive maintenance method | |
| CN104927759B (en) | A kind of interface adhesive material and black overlay structure and its construction technology of changing in vain based on the material | |
| CN204753292U (en) | Spread structure with adding of black top layer on cement road surface | |
| CN103334365B (en) | The paving structure of a kind of fast quick-recovery road surface and bridge floor function and paving method | |
| CN111705583B (en) | Method for judging applicability of cement concrete composite pavement structure | |
| CN103232189B (en) | Pavement material and pavement method for flame-retardant stone chips skid-resisting super overlay | |
| CN207672360U (en) | A kind of transformation asphalt pavement structure | |
| CN105926456A (en) | Construction technology of 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: 20101103 Termination date: 20201112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |