CN100577736C - Asphalt pavement conditioning curing agent and preparation method thereof - Google Patents
Asphalt pavement conditioning curing agent and preparation method thereof Download PDFInfo
- Publication number
- CN100577736C CN100577736C CN200810069205A CN200810069205A CN100577736C CN 100577736 C CN100577736 C CN 100577736C CN 200810069205 A CN200810069205 A CN 200810069205A CN 200810069205 A CN200810069205 A CN 200810069205A CN 100577736 C CN100577736 C CN 100577736C
- Authority
- CN
- China
- Prior art keywords
- asphalt
- pavement
- curing agent
- agent
- mixture
- 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.)
- Active
Links
Landscapes
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses asphalt pavement conditioning curing agent and a preparation process. The formulation comprises the following components with percentage by weight, 10-15% refined asphalt, 23-50% organic solution, 3-23% surface modifier, 2-10% functional auxiliary agent and 5-25% regenerative agent. The preparation process comprises conducting reasonable proportioning for refined asphalt, organic solution and regenerative agent, surface modifier and functional auxiliary agent, putting into a stirred tank in turn, starting a stirrer to stir continuously, stirring for 0.5-4h in condensation reflux under the temperature of 60-150 DEG C, and then cooling down to ambient temperature, finally obtaining the product of asphalt pavement conditioning curing agent when the mixture is completely cooled down. The curing agent has simple making art, low device requirement, low usage cost and simple construction technology, which can significant increase penetration degree, softening point and ductility of aging asphalt, beautifies the appearance of asphalt pavement, improves the quality of pavement, increases the cling ability of the pavement, and prolongs the service life of the pavement.
Description
Technical field
The present invention relates to a kind of can the reduction to the aged asphalt pavement recycling, make its performance recovery to original new bituminous pavement partial properties index, and can make minute crack automatically up, effectively water shutoff, the preparation method of the asphalt pavement conditioning curing agent of road improvement frictional coefficient and graceful road surface outward appearance belongs to bituminous pavement maintenance and repair association area.
Background technology
In recent years, the semi-rigidity bituminous concrete road has become the major structural types of highway in China.Bituminous pavement is with surfacing, and it is comfortable to drive a vehicle, and noise is little, and good vibration damping is arranged, and advantages such as old asphalt mixture reproducible utilization are occupied dominant position.In use, the road surface in various natural causes (as oxygen, temperature, ultraviolet ray, water etc.) and human factor (as construction, heavy duty etc.) under the effect, its every performance can progressively reduce, and shows as bituminous pavement and rut, hole, hole, loose, various forms of crackings etc. occur.If do not take effective maintenance measure, in time eliminate disease, can cause the havoc on road surface.
Present maintenance method mainly is the maintenance of passive type, promptly waits the destruction on road surface to reach when having a strong impact on driving, carries out cover or spreads new road surface.Though can obtain the use properties on newly-built road surface, also have some defectives: it is bigger to the influence of traffic to overhaul the road surface, particularly to some busy major urban arterial highways and the bigger motorway of the volume of traffic; In addition, the pavement recapping cost is higher, and the depleted asphalt pollutes environment.This mode not only increases Road maintenance overhead charges and directly economic the input, has also increased virtually because road maintenance or overhaul generation social cost such as causing traffic congestion, environmental pollution in the process of reconstruction.Therefore, in order both to reduce construction cost, can prolong the weather resistance of bituminous pavement again, easy construction simultaneously, influence to traffic is little, can occur not or occur that early disease such as ageing of asphalt, road surface are sent out puckery, adopt the special regeneration maintenance material of bituminous pavement to carry out preventive maintenance when loose, pitted skin, minute crack, infiltration etc. bituminous pavement.
Abroad, adopt the special regeneration maintenance material of bituminous pavement to carry out the existing more research and the application of technology of preventive maintenance.At present, this technology has obtained using widely in the U.S., Canada and some European countries, and has obtained tremendous economic and social benefit.External experience shows, adopts the special regeneration maintenance material of bituminous pavement that road is carried out precuring and handles, and less investment, profitable, the flower stiver is controlled serious disease.
The Pavement Dressing Conditioner of U.S.'s development (being called for short PDC, U.S. Patent number 5,580,603) is a kind of preventative asphalt pavement regeneration agent, uses at some airfield runways of ground such as the U.S. and Canada and highway.It can be regenerated to aged asphalt, can strengthen asphalt temperature stability.Simultaneously, road pavement is carried out water-tight, hinders the seepage failure effect of water, thereby prevents or delay the early damage of bituminous pavement.But this technology is not too obvious to the effect of diseases such as handling crack, the ageing of asphalt occurred 3～5mm and come off, serious loose.
Summary of the invention
The present invention is according to trend and the precuring material existing deficiency of domestic asphalt roads maintenance towards cold conditions construction development, and in conjunction with the advantage of advanced foreign technology, purpose is to provide a kind of asphalt pavement conditioning curing agent and preparation method, set about from construction technology with to action principle two aspects of bituminous pavement, by consuming less resource, at utmost improve the bituminous pavement quality, beautify the road surface outward appearance, improve road anti-slide performance and water resistance, prevention or check disease development and spread effectively prolongs road life.This material can effectively solve bituminous pavement early diseases such as ageing of asphalt, loose, pitted skin, fine cracks, infiltration.
Purpose of the present invention is achieved through the following technical solutions:
A kind of asphalt pavement conditioning curing agent, by weight percentage, its prescription comprises following component: refined asphaltic bitumen 10～50%, organic solvent 23～50%, surface-modifying agent 3～23%, functional agent 2～10% and regenerator 5～25%.
Described refined asphaltic bitumen is petroleum pitch, coal-tar pitch, SBS thermoplastic styrene butadiene rubber modifying asphalt or rubber powder modified asphalt.
Described organic solvent is any one or more a mixture in benzene,toluene,xylene, ethyl acetate, butylacetate, acetone, ethanol, butanols, the Tianna solution equal solvent.
Described surface-modifying agent is any one or more a mixture in petroleum resin, urethane, thermoplastic acrylic resin, silicone resin, dibutyl phthalate, dioctyl phthalate (DOP), the vegetables oil.
Described functional agent is any one or more a mixture of calcined kaolin, black ore sand, montmorillonite, clay, lime carbonate, rubber powder and carbon black.
Described regenerator is any one or more mixture of light mineral oil, machine oil, phenol, polyphenol, naphthalene, anthracene, polycyclic aromatic hydrocarbons, kerosene and lubricating oil.
The preparation method of described asphalt pavement conditioning curing agent may further comprise the steps:
(1) refined asphaltic bitumen, organic solvent, regenerator, surface-modifying agent and functional agent are carried out rational proportion by above-mentioned weight percent, add successively in the stirring tank, start stirrer, continuously stirring under certain stirring velocity;
(2) with the mixture in the step (1) under 60～150 ℃, condensing reflux stirs 0.5～4h;
(3) mixture that makes in the step (2) is cooled to normal temperature, the even thickness liquid form mixt that obtains is asphalt pavement conditioning curing agent of the present invention.
With respect to prior art, the advantage of present technique invention:
(1) asphalt pavement conditioning curing agent of the present invention is a kind of cold conditions construction black strong solution, need not heat during construction, need not dilute, and can directly brush at normal temperatures at motorway or town road bituminous pavement by craft or machinery.
(2) after bituminous pavement is used, asphalt pavement conditioning curing agent can infiltrate the bituminous pavement of motorway or town road rapidly, and top layer aged asphalt-regenerating is brought back to life.Aged asphalt penetration degree, softening temperature and ductility after the recovery can reach or approaching original new pitch index.Aged asphalt after recovering to regenerate can bond again to discrete aggregate, and table forms tight sealing ply on the road, can effectively prevent the road surface infiltration.
(3) after bituminous pavement is used, the asphaltic binder that asphalt pavement conditioning curing agent can the supply road surface comes off because of ageing of asphalt is with the exposed parcel bonding again of gathering materials.
(4) after bituminous pavement is used, asphalt pavement conditioning curing agent can make the following minute crack of 3mm automatically up, and the crack of 3～5mm is sealed with good repairing effect.
(5) the present invention has selected distinctive surface-modifying agent for use, is the oligopolymer that a class appearance has a plurality of hardwares, is evenly dispersed in the asphalt system, can give stable extension of pitch and high low-temperature flexibility; Simultaneously, this class material is by the reaction of bridge formation technology, and the pitch after strengthening regenerating makes asphaltic binder tightr with the bonding of gathering materials to the cohesive force of discrete aggregate.
(6) functional agent that is added with especially of the present invention is that a class has porous, attrition resistant material, can effectively combine with other compositions in the material of the present invention, forms stable system; After being administered to bituminous pavement, such functional agent can be shown gathering materials of loss and part binding material in the supply road, effectively improves road surface microcosmic anti-slide performance, improves the frictional coefficient and the construction depth of bituminous pavement, and brings into play its effect for a long time.Simultaneously, the use of this class functional agent has reduced the usage quantity of asphaltic binder, has increased the intensity of asphaltic binder.
(7) asphalt pavement conditioning curing agent of the present invention is strong to the perviousness of the bituminous pavement of motorway or town road, and after construction one month, its depth of penetration can reach about 6～16mm, effectively stops the erosion of rainwater or other fuel oil.
(8) the present invention is used for not occurring or has occurred early disease such as ageing of asphalt, loose, pitted skin, fine cracks, infiltration etc., and the bituminous pavement that pavement structure is good is particularly suitable for open gradation (voidage is relatively large after the mineral aggregate moulding), the wearing layer bituminous road surface of drain type asphalt, open gradation porous crack (OGFC), pitch horse's hoofs fat crushed stones compound (SMA) road surface and other bituminous pavement are carried out preventive maintenance.
(9) asphalt pavement conditioning curing agent preparation technology of the present invention is simple, equipment requirements is low, use cost is low, construction technology is simple, resource environment protection, and result of use is obvious, can obviously improve penetration degree, softening temperature and the ductility of aged asphalt, graceful bituminous pavement outward appearance is improved pavement quality, prolongs road work-ing life.
Embodiment
For a better understanding of the present invention, below by example 1-4 the asphalt pavement conditioning curing agent and the preparation method of invention are elaborated.The benzene that uses among the example 1-4, toluene, dimethylbenzene, ethyl acetate, butylacetate, acetone, ethanol, butanols, Tianna solution, petroleum resin, urethane, thermoplastic acrylic resin, silicone resin, dibutyl phthalate, dioctyl phthalate (DOP), vegetables oil, phenol, polyphenol, naphthalene, anthracene, polycyclic aromatic hydrocarbons, light mineral oil, machine oil, kerosene, lubricating oil, kaolin, black ore sand, montmorillonite, clay, lime carbonate, starting material such as rubber powder and carbon black are technical grade.
Ageing of asphalt regeneration test method: aged asphalt specimen preparation (T0610-1993), pitch penetration degree (T0604-2000), ductility (T0605-1993) and softening temperature (T0606-2000).
Pavement test: content measurement comprises: frictional coefficient (portable pendulum tester mensuration), construction depth (T0731-2000), infiltration coefficient (T0730-2000).
Embodiment 1
Get coal-tar pitch 200g, toluene 60g, dimethylbenzene 32g, butanols 5g, polycyclic aromatic hydrocarbons 10g, phenol 10g, anthracene 20g, (Foshan City is brilliant to produce with Dehua worker company limited thermoplastic acrylic resin, trade mark AC1024) 34g, dioctyl phthalate (DOP) 10g, calcined kaolin (specification 325 orders) 12g, rubber powder (specification 120 orders) 10g, lime carbonate (specification 325 orders) 5g, carbon black (specification 325 orders) 5g adds in the stirring tank continuously stirring successively, then under 150 ℃ of temperature, condensing reflux stirs 4h, is cooled to normal temperature, obtains even thickness liquid form mixt and is asphalt pavement conditioning curing agent of the present invention.
Ageing of asphalt regeneration test: get this curing agent of 26.4g and mix with the Korea S 70# of SK company matrix pitch 600g after clock aging in 85 fens.To the aging front and back of the Korea S 70# of SK company matrix pitch, and the index contrast behind the aging back interpolation asphalt pavement conditioning curing agent sees Table 1-1:
Table 1-1
Test in place: on certain motorway (SMA flexible cladding) road surface, brushing this product by hand.Occurred on the preceding road surface of processing that ageing of asphalt comes off, minute crack, slight disease such as loose, infiltration.After this highway section used this product, frictional coefficient, construction depth, infiltration coefficient and the depth of penetration on road surface before and after using detected, test result sees Table 1-2.
Table 1-2
After the processing, the fine cracks sealing, discrete aggregate bonds again, and the road surface presents even pitch-dark look, and the water shutoff performance effectively improves, and pavement quality improves.
Embodiment 2
Get petroleum pitch (trade mark AH-70) 140g, benzene 10g, toluene 80g, dimethylbenzene 20g, butylacetate 15g, acetone 5g, Resorcino 10, kerosene 40g, naphthalene 10, anthracene 20g, lubricating oil 20g, C 5 petroleum resin 8g, C 9 petroleum resin 12g, vegetables oil 7g, dibutyl phthalate 3g, clay (specification 325 orders) 10g, montmorillonite (specification 325 orders) 8g, calcined kaolin (specification 325 orders) 5g, carbon black (specification 325 orders) 2g, add in the stirring tank successively, continuously stirring, under 60 ℃, condensing reflux stirs 0.5h then, be cooled to normal temperature, obtain even thickness liquid form mixt and be asphalt pavement conditioning curing agent of the present invention.
Ageing of asphalt regeneration test: get this curing agent of 26.4g and mix with the Korea S 70# of SK company matrix pitch 600g after clock aging in 85 fens.To the aging front and back of the Korea S 70# of SK company matrix pitch, and the index contrast behind the aging back interpolation asphalt pavement conditioning curing agent sees Table 2:
Table 2
Bituminous pavement is tested: after asphalt pavement conditioning curing agent of the present invention was applied to certain town road aged bituminous pavement, the surface friction coefficient absolute value was improving 5BPN on original basis, and construction depth is constant substantially, and infiltration coefficient reduces to zero by 28ml/min.
Embodiment 3
Get petroleum pitch (trade mark AH-90) 100g, Tianna solution 120g, Resorcino 10, naphthalene 10, anthracene 20g, light mineral oil 20g, lubricating oil 20g, kerosene 30g, C 9 petroleum resin 12g, silicone resin (being polysiloxane) 5g, dibutyl phthalate 4g, clay (specification 325 orders) 10g, montmorillonite (specification 325 orders) 8g, calcined kaolin (specification 325 orders) 5g, carbon black (specification 325 orders) 2g, add in the stirring tank successively, continuously stirring, under 120 ℃, condensing reflux stirs 3h then, be cooled to normal temperature, obtain even thickness liquid form mixt and be asphalt pavement conditioning curing agent of the present invention.
Ageing of asphalt regeneration test: get this curing agent of 26.4g and mix with the Korea S 70# of SK company matrix pitch 600g after clock aging in 85 fens.To the aging front and back of the Korea S 70# of SK company matrix pitch, and the index contrast behind the aging back interpolation asphalt pavement conditioning curing agent sees Table 3:
Table 3
Bituminous pavement is tested: after asphalt pavement conditioning curing agent of the present invention was applied to certain town road aged bituminous pavement, the surface friction coefficient absolute value was improving 5BPN on original basis, and construction depth is constant substantially, and infiltration coefficient reduces to zero by 28ml/min.
Embodiment 4
Get SBS modifying asphalt 70g, toluene 100g, dimethylbenzene 30g, ethanol 5g, acetone 15g, butylacetate 20g is to biphenol 10, lubricating oil 20g, light mineral oil 5g, machine oil 5g, C 5 petroleum resin 25g, C 9 petroleum resin 50g, lime carbonate (specification 325 orders) 25g, black ore sand (specification 325 orders) 10g,, carbon black (specification 325 orders) 6g, add in the stirring tank successively, continuously stirring, under 150 ℃ of temperature, condensing reflux stirs 4.0h then, be cooled to normal temperature, obtain even thickness liquid form mixt and be asphalt pavement conditioning curing agent of the present invention.
Ageing of asphalt regeneration test: get this curing agent of 26.4g and mix with the Korea S 70# of SK company matrix pitch 600g after clock aging in 85 fens.To the aging front and back of the Korea S 70# of SK company matrix pitch, and the index contrast behind the aging back interpolation asphalt pavement conditioning curing agent sees Table 4:
Table 4
Bituminous pavement is tested: after asphalt pavement conditioning curing agent of the present invention was applied to the aged bituminous pavement, the surface friction coefficient absolute value was improving 4BPN on original basis, and construction depth is constant substantially, and infiltration coefficient reduces to zero by 22ml/min.
Claims (3)
1. an asphalt pavement conditioning curing agent is characterized in that by weight percentage, and it is made up of following component: refined asphaltic bitumen 10～50%, organic solvent 23～50%, surface-modifying agent 3～23%, functional agent 2～10% and regenerator 5～25%;
Described refined asphaltic bitumen is petroleum pitch, coal-tar pitch, SBS thermoplastic styrene butadiene rubber modifying asphalt or rubber powder modified asphalt;
Described organic solvent is any one or more the mixture in benzene,toluene,xylene, ethyl acetate, butylacetate, acetone, ethanol, butanols, the Tianna solution;
Described surface-modifying agent is any one or more the mixture in petroleum resin, urethane, thermoplastic acrylic resin, the silicone resin;
Described functional agent is any one or more a mixture of calcined kaolin, black ore sand, montmorillonite, clay, lime carbonate, rubber powder and carbon black;
Described regenerator is any one or more the mixture in light mineral oil, lubricating oil, phenol, polyphenol, the polycyclic aromatic hydrocarbons.
2. bituminous road according to claim 1 and conditioning curing agent is characterized in that: the polycyclic aromatic hydrocarbons in the described regenerator is selected from naphthalene, anthracene, and light mineral oil is selected kerosene, and lubricating oil is selected machine oil.
3. prepare the preparation method of claim 1 or 2 described asphalt pavement conditioning curing agents, may further comprise the steps:
(1) refined asphaltic bitumen, organic solvent, regenerator, surface-modifying agent and functional agent are carried out proportioning by weight percentage, add successively in the stirring tank, start stirrer, continuously stirring;
(2) will stir later mixture in the step (1) under 60～150 ℃, condensing reflux stirs 0.5～4h;
(3) mixture that makes in the step (2) is cooled to normal temperature, the even thickness liquid form mixt that obtains is asphalt pavement conditioning curing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810069205A CN100577736C (en) | 2008-01-04 | 2008-01-04 | Asphalt pavement conditioning curing agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810069205A CN100577736C (en) | 2008-01-04 | 2008-01-04 | Asphalt pavement conditioning curing agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101235209A CN101235209A (en) | 2008-08-06 |
| CN100577736C true CN100577736C (en) | 2010-01-06 |
Family
ID=39919131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810069205A Active CN100577736C (en) | 2008-01-04 | 2008-01-04 | Asphalt pavement conditioning curing agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100577736C (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174266B (en) * | 2011-02-11 | 2012-07-04 | 重庆市智翔铺道技术工程有限公司 | Asphalt cold recycling agent and preparation method thereof |
| CN102153926B (en) * | 2011-02-15 | 2012-07-04 | 山西省交通科学研究院 | Penetrable regeneration paint for asphalt pavement and preparation method of penetrable regeneration paint |
| CN102173658B (en) * | 2011-03-19 | 2012-09-26 | 重庆诚邦路面材料有限公司 | Cement concrete pavement curing agent and preparation method thereof |
| CN102190897B (en) * | 2011-03-19 | 2012-08-01 | 重庆诚邦路面材料有限公司 | Water-based road asphalt rehabilitating agent and preparation method thereof |
| CN102618047A (en) * | 2012-03-31 | 2012-08-01 | 英达热再生有限公司 | Universal asphalt performance enhancing agent and preparation method thereof |
| CN102924936A (en) * | 2012-11-09 | 2013-02-13 | 重庆市智翔铺道技术工程有限公司 | Bituminous cold reclaiming agent and application of bituminous cold reclaiming agent in cold reclaiming of bituminous concrete |
| CN103011898B (en) * | 2012-12-12 | 2014-03-26 | 中交第一公路勘察设计研究院有限公司 | Bituminous pavement softener and preparation method and application method thereof |
| CN103436038B (en) * | 2013-07-16 | 2016-08-10 | 交通运输部公路科学研究所 | A kind of unmade way bitumen regenerant and preparation method |
| CN103897410B (en) * | 2013-12-16 | 2016-01-20 | 龚义海 | Motorway and bridge composite modified asphalt |
| CN103951987B (en) * | 2014-04-23 | 2016-03-16 | 苏州羽帆新材料科技有限公司 | A kind of waterproof hard pitch material and preparation method thereof |
| CN103992715B (en) * | 2014-04-23 | 2016-03-02 | 江苏欣安新材料技术有限公司 | Surface treatment seal coat of a kind of concrete surface and preparation method thereof |
| CN103951990B (en) * | 2014-04-23 | 2016-03-16 | 苏州羽帆新材料科技有限公司 | Resistance to bituminous material frozen of a kind of stretch-proof and preparation method thereof |
| CN104130588B (en) * | 2014-07-18 | 2017-03-01 | 滨州学院 | Road repair self-adhesion band |
| CN104177743A (en) * | 2014-09-15 | 2014-12-03 | 重庆罗兹沃柯交通科技有限公司 | Novel asphalt pavement fog seal maintenance material and preparation method thereof |
| CN105295400B (en) * | 2015-11-26 | 2017-11-24 | 李维林 | A kind of asphalt pavement curing agent and preparation method thereof |
| CN105482476B (en) * | 2016-01-25 | 2018-06-26 | 北京化工大学 | A kind of method that spray drying process prepares nanoclay/butadiene-styrene rubber powder modified pitch |
| CN107043548A (en) * | 2017-05-02 | 2017-08-15 | 广西交科新材料科技有限责任公司 | Bituminous paving High-performance rubber asphalt sealing compound and preparation method thereof |
| CN107903642A (en) * | 2017-10-20 | 2018-04-13 | 智立达资源循环利用科技股份有限公司 | A kind of preparation method of room temperature sealing liquid bitumen |
| CN108503276A (en) * | 2018-04-20 | 2018-09-07 | 万玉梅 | A kind of function pavement conserving material and preparation method thereof |
| CN108822566B (en) * | 2018-06-05 | 2020-08-04 | 广东石油化工学院 | Silicon modified road asphalt pavement curing agent and preparation method thereof |
| CN109231890A (en) * | 2018-09-08 | 2019-01-18 | 平湖市中建沥青混凝土工程有限公司 | A kind of stone mastic asphalt and preparation method thereof |
| CN109797620B (en) * | 2019-01-09 | 2021-01-01 | 山东省交通科学研究院 | Anti rut road surface pavement structure of heavy traffic wholeness based on combined material |
| CN109762468B (en) * | 2019-03-25 | 2021-07-09 | 河北建设集团股份有限公司 | Asphalt concrete pavement protective agent and preparation method and application thereof |
| CN111019526A (en) * | 2019-12-26 | 2020-04-17 | 江苏中路交通科学技术有限公司 | Environment-friendly permeable asphalt pavement regeneration curing agent and preparation method and application thereof |
| CN111395096A (en) * | 2020-03-24 | 2020-07-10 | 广州方华交通技术有限公司 | Super-tough wearing layer for pavement and hot paving process thereof |
| CN111704860B (en) * | 2020-06-01 | 2021-11-23 | 广州大象超薄路面技术开发有限公司 | High-viscosity fog sealing layer material and preparation method and application thereof |
| CN112625512A (en) * | 2020-12-07 | 2021-04-09 | 杭州联体消修化工有限公司 | Asphalt pavement sealing compact reduction curing agent and construction process thereof |
-
2008
- 2008-01-04 CN CN200810069205A patent/CN100577736C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101235209A (en) | 2008-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100577736C (en) | Asphalt pavement conditioning curing agent and preparation method thereof | |
| CN100577737C (en) | Asphalt pavement curing agent and preparation method thereof | |
| CN104058638B (en) | A kind of asphalt | |
| CN105255205B (en) | A kind of low-temp recovery asphalt and preparation method thereof | |
| CN104986992A (en) | Asphalt mixture pavement | |
| CN103452025A (en) | Method for quickly repairing and maintaining expressway pavement | |
| CN104072024A (en) | Preparation process of asphalt mixture | |
| CN1224761C (en) | Structure of felting bridge floor made from steel box girder in large span | |
| CN111170678A (en) | Pouring type concrete with polyurethane as binder and preparation method thereof | |
| CN109797620B (en) | Anti rut road surface pavement structure of heavy traffic wholeness based on combined material | |
| CN109534722A (en) | A kind of high-performance reclaimed bituminous pavement cold-repairing material and preparation method thereof | |
| Zhao et al. | A summary of cold patch material for asphalt pavements | |
| CN107651887A (en) | A kind of high-modulus rubber-asphalt mixture and preparation method thereof | |
| CN100451237C (en) | Material for waterproof bridge surface system and its paving process | |
| CN105199407B (en) | A kind of low-temp recovery pitch binder and its application | |
| CN101319091A (en) | Colorful asphalt emulsion, preparation, and application in colorful slurry sealing layer | |
| CN110372295A (en) | High-intensity and high-tenacity light polyurethane rubber bridge deck pavement material and its preparation | |
| CN109457610A (en) | A kind of paving structure and construction method for Orthotropic Steel Bridge Deck reinforcement | |
| CN111304994B (en) | Semi-flexible functional combined structure recovery layer applied to asphalt pavement maintenance | |
| CN108468280A (en) | Old bridge floor repair materials height glues mute micro-surface area superthin layer and its application method | |
| CN112551940A (en) | Direct-vat-set tackifying regenerative modifier and preparation and application methods thereof | |
| CN107059615A (en) | Permanent seal cooling Bridge Surface Paving by Cement structure | |
| CN107043548A (en) | Bituminous paving High-performance rubber asphalt sealing compound and preparation method thereof | |
| CN105859192A (en) | Asphalt mixture | |
| CN105884265A (en) | Asphalt mixture pavement |
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 | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING CHENGBANG PAVEMENT MATERIALS CO., LTD. Free format text: FORMER OWNER: CHONGQING HAUTWELL SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20111110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111110 Address after: Nanping Street Nanping Nan'an District of Chongqing City Road 400060 No. 37 Patentee after: Chongqing Chengbang Road Surface Materials Co.,Ltd. Address before: Nanping Street Nanping Nan'an District of Chongqing City Road 400060 No. 37 sixth floor Patentee before: Chongqing Hautwell Science & Technology Co., Ltd. |