CN1775865A - Laminated silicate clay nano modified alphalt and its preparing method - Google Patents
Laminated silicate clay nano modified alphalt and its preparing method Download PDFInfo
- Publication number
- CN1775865A CN1775865A CN 200510020001 CN200510020001A CN1775865A CN 1775865 A CN1775865 A CN 1775865A CN 200510020001 CN200510020001 CN 200510020001 CN 200510020001 A CN200510020001 A CN 200510020001A CN 1775865 A CN1775865 A CN 1775865A
- Authority
- CN
- China
- Prior art keywords
- clay
- silicate
- pitch
- laminar silicate
- laminar
- 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.)
- Granted
Links
Landscapes
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention supplies a method to make phyllo-silicate clay nm modification asphalt that is made up of 0.1-20% of phyllo-silicate clay and 80-99.9% of asphalt. The process includes the following steps: using the phyllo-silicate clay as modification agent for road petroleum asphalt; adding the clay into asphalt maintaining the temperature between 100 degree centigrade and 200 degree centigrade, whisking for 0.5-8 hours at the rotating speed between 1000-6000rpm/min and the modification asphalt would be gained. The invention has simple technology and has high price performance ratio.
Description
Technical field
The present invention is a kind of laminated silicate clay nano modified alphalt and preparation method thereof.
Background technology
Pitch is made up of components such as bituminous matter, colloid, aromatic hydrocarbon and stable hydrocarbon, and it comes down to the extremely complicated macromolecule mixture of a kind of composition.Because bituminous pavement has and tempers toughness with gentleness, and good use properties can be provided, thereby be widely used in the road surface construction of highway.
In recent years, along with the canalization of increasing the weight of of carrying of the increase of the volume of traffic, axle and traffic, rut was the topmost early damage phenomenon of bituminous pavement.After some express highway section was open to traffic, the pliotherm period of experiencing first summer just produced the rut that the degree of depth is 10mm～50mm, have in addition reach 100mm.The road surface rut occurs and easily causes: surface evenness reduces; Wheelmark place brea bed reduced thickness weakens the bulk strength of surface layer and pavement structure, thereby is easy to bring out other infringement; The rainy day impeded drainage reduces the pavement skid resistance ability; Direction out of control when vehicle cut-ins or replacing track influences vehicle driving safety.This shows that rut not only can significantly reduce the work-ing life on road surface, and can have a strong impact on the service level on road surface.For this reason, the SHRP of the U.S. (Strategic Highway Research Program) has proposed an index G
*/ Sin δ (the rut factor) estimates the rutting resistance of modified asphalt material with this, promptly resists the ability of flow deformation.Frequency setting with dynamic shear rheometer during test is 10rad/s (near the frequency of doughnut road pavement applied load), sample is carried out temperature scanning, the G under the same temperature
*/ Sin δ is big more, and expression pitch rutting resistance is good more, and this pitch can be applicable to the area that envrionment temperature is higher.
Bituminous temperature-inductive (abbreviation temperature sensibility) be decision pitch when using workability and be applied to service important indicator in the road surface.Or rather, major technique character such as the rutting resistance of bituminous pavement, anti-cold cracking ability and weather resistance all have inner link with the bituminous temperature sensibility.For the road bitumen material, temperature sensibility is the smaller the better.Penetrative index (PI) is to weigh a kind of important indicator of pitch temperature sensibility.The pitch that the PI value is big more, temperature sensitivity is little.In general, PI belongs to colloidal sol type less than-2 pitch; PI belongs to gel-type greater than+2 pitch; The pitch of PI between-2～+ 2 belongs to molten gel-type.
Clay of laminar silicate is the silicate minerals that is contained crystal water by 2: 1 types that two layers of tetrahedral si-o film folder layer of aluminum (magnesium) oxygen (hydrogen-oxygen) octahedral sheet constitute, and its interlamellar spacing is generally about 1nm.Pitch can be inserted in the bedding void of clay of laminar silicate by proper method, interlamellar spacing is enlarged or impel synusia successively to peel off and be dispersed in the pitch matrix, realize the compound of both nanoscales.For helping the intercalation of pitch in clay of laminar silicate, can adopt organized clay.So-called organized clay is meant the clay of laminar silicate that utilizes organic intercalation agent to handle by cationic exchange.The clay surfaces externally and internally that organises after handling transfers lipophilicity to by wetting ability, and the surface energy of silicate reduces, and interlamellar spacing enlarges, and is beneficial to the pitch intercalation.
Summary of the invention
Technical problem to be solved by this invention is: improve the rutting resistance of road bitumen, reduce its temperature sensitivity, make pitch be used for the area that Road construction can be applicable to that envrionment temperature is higher.
The present invention solves its technical problem and adopts following technical scheme:
Laminated silicate clay nano modified alphalt provided by the invention is made up of clay of laminar silicate and pitch, and the weight percent of each component is respectively 0.1～20,80～99.9.
The preparation method of laminated silicate clay nano modified alphalt provided by the invention is: select the properties-correcting agent of clay of laminar silicate as petroleum pitch for use, adopt melt intercalated method, make laminated silicate clay nano modified alphalt by following step.
(1) clay of laminar silicate is ground, with 200～600 purpose sieve;
(2) clay of laminar silicate after will sieving joins in the fused pitch, and its weight percent is respectively 0.1～20,80～99.9;
(3) holding temperature is 100～200 ℃, and under 1000～6000rpm/min rotating speed, high-speed stirring 0.5～8 hour makes its blend evenly make laminated silicate clay nano modified alphalt.
The present invention has following main advantage:
One. adopt the method for fusion intercalation, the asphaltene molecule chain is inserted in the bedding void of clay of laminar silicate, impel interlamellar spacing expansion or synusia successively to peel off and be dispersed in the pitch matrix, realize the compound of both nanoscales, technology is simple and convenient.
They are two years old. and can significantly improve the bituminous rutting resistance, and can effectively reduce the bituminous temperature sensitivity, make pitch be used for the area that Road construction can be applicable to that envrionment temperature is higher.
They are three years old. and raw materials usedly can be commercially available various clay of laminar silicate mineral, adapt to wide.
They are four years old. and having high cost performance, can effectively reduce cost, is a kind of novel asphalt pavement material.
Embodiment
The present invention selects the properties-correcting agent of clay of laminar silicate as petroleum pitch for use, adopts melt intercalated method, makes laminated silicate clay nano modified alphalt, and this modified asphalt preparation method adopts following concrete steps:
(1) clay of laminar silicate is ground, with 200～600 purpose sieve.
(2) clay of laminar silicate after will sieving joins in the fused pitch, and its weight percent is respectively 0.1～20,80～99.9.
(3) holding temperature is 100～200 ℃, and under 1000～6000rpm/min rotating speed, high-speed stirring 0.5～8 hour makes its blend evenly make laminated silicate clay nano modified alphalt.
Above-mentioned clay of laminar silicate is polynite, tired one or more the mixture that takes off stone or vermiculite.Used clay is the commercially available prod, and it can be common clay of laminar silicate, also can be the organized clay of handling through organic modification, generally selects organized clay for use.Through the XRD test, the interlamellar spacing of used clay is 0.8～3nm, and the clay seam spacing is big more, and the performance of modifying asphalt is good more.
The used pitch of the present invention is bi tumenf orr oad, and the bituminous softening temperature is 35～65 ℃, and penetration of bitumens (25 ℃) is greater than 40dmm.
By means of specific embodiment the present invention is made further instructions below.
Embodiment 1
With 0.5 part of (mass fraction, as follows) organic montmorillonoid (particle diameter 325 orders, interlamellar spacing is 2.3nm) be added to 99.5 parts of fused Taizhou No. 70 heavy-duty road asphalts (47 ℃ of softening temperatures, penetration degree 75dmm) in, keeping temperature is 145 ℃, high-speed stirring 60min under the shearing rate of 3000rpm/min mixes it, promptly obtains modified bitumen product.After tested, the penetrative index (PI) of No. 70 heavy traffic paving asphalts in Taizhou is that-1.042,64 ℃ of rut factors are 0.830, and the PI of prepared modifying asphalt is that-0.77,64 ℃ of rut factors are 2.047 in this example.
Embodiment 2
(particle diameter is 300 orders with 1 part of common sodium-based montmorillonite, interlamellar spacing is 1.1nm) be added in No. 70 heavy duty road asphalts in 99 parts of fused Taizhou, keeping temperature is 150 ℃, high-speed stirring 120min under the shearing rate of 3000rpm/min, it is mixed, promptly obtain modified bitumen product.After tested, the penetrative index (PI) of No. 70 heavy traffic paving asphalts in Taizhou is that-1.042,64 ℃ of rut factors are 0.830, and the PI of prepared modifying asphalt is that-0.61,64 ℃ of rut factors are 1.802 in this example.
Embodiment 3
3 parts commonly tired taken off stone (particle diameter is 325 orders, interlamellar spacing is 1.2nm) be added to 97 parts of fused SK-90 heavy duty road asphalt (46 ℃ of softening temperatures, penetration degree 93dmm) in, keeping temperature is 152 ℃, high-speed stirring 120min under the shearing rate of 3500rpm/min, it is mixed, promptly obtain modified bitumen product.After tested, the penetrative index of SK-90 heavy traffic paving asphalt (PI) is that-1.15,64 ℃ of rut factors are 0.910, and the PI of prepared modifying asphalt is that-0.48,64 ℃ of rut factors are 1.743 in this example.
Embodiment 4
With 5 parts of common sodium-based montmorillonites (particle diameter 350 orders, interlamellar spacing is 1.1nm) be added in No. 70 heavy duty road asphalts in 95 parts of fused Taizhou, keeping temperature is 157 ℃, high-speed stirring 120min under the shearing rate of 4000rpm/min, it is mixed, promptly obtain modified bitumen product.After tested, the penetrative index (PI) of No. 70 heavy traffic paving asphalts in Taizhou is that-1.042,64 ℃ of rut factors are 0.830, and the PI of prepared modifying asphalt is that-0.37,64 ℃ of rut factors are 1.608 in this example.
Embodiment 5
With 7 parts of organic montmorillonoids (particle diameter 400 orders, interfloor distance is 2.1nm) be added in No. 70 heavy duty road asphalts in 93 parts of fused Taizhou, keeping temperature is 163 ℃, high-speed stirring 150min under the shearing rate of 4000rpm/min, it is mixed, promptly obtain modified bitumen product.After tested, the penetrative index (PI) of No. 70 heavy traffic paving asphalts in Taizhou is that-1.042,64 ℃ of rut factors are 0.830, and the PI of prepared modifying asphalt is that-0.24,64 ℃ of rut factors are 2.530 in this example.
Embodiment 6
With 10 parts of tired stone (particle diameter 550 orders that take off that organise, interlamellar spacing is 2.2nm) be added in 90 parts of fused SK-90 heavy duty road asphalts, keeping temperature is 165 ℃, high-speed stirring 90min under the shearing rate of 5000rpm/min, it is mixed, promptly obtain modified bitumen product.After tested, the penetrative index of SK-90 heavy traffic paving asphalt (PI) is that-1.15,64 ℃ of rut factors are 0.910, and the PI of prepared modifying asphalt is that 0.83,64 ℃ of rut factor is 3.020 in this example.
The foregoing description only is used for that the present invention is further illustrated, rather than limitation of the present invention.
Claims (6)
1. a modifying asphalt is characterized in that a kind of laminated silicate clay nano modified alphalt, is made up of clay of laminar silicate and pitch, and the weight percent of each component is respectively 0.1～20,80～99.9.
2. a modified asphalt preparation method is characterized in that selecting for use clay of laminar silicate as properties-correcting agent, adopts melt intercalated method, makes laminated silicate clay nano modified alphalt by following step,
(1) clay of laminar silicate is ground, with 200～600 purpose sieve,
(2) clay of laminar silicate after will sieving joins in the fused pitch, and its weight percent is respectively 0.1～20,80～99.9,
(3) holding temperature is 100～200 ℃, and under 1000～6000rpm/min rotating speed, high-speed stirring 0.5～8 hour makes its blend evenly make laminated silicate clay nano modified alphalt.
3. modified asphalt preparation method according to claim 2 is characterized in that: clay of laminar silicate is a clay common or that the process organic modification is handled, and interlamellar spacing is 0.8～3nm.
4. clay of laminar silicate according to claim 3 is characterized in that: clay of laminar silicate is polynite, tired one or more the mixture that takes off stone or vermiculite mineral.
5. modified asphalt preparation method according to claim 2 is characterized in that: pitch is bi tumenf orr oad.
6. modified asphalt preparation method according to claim 5 is characterized in that the bituminous softening temperature is 35～65 ℃, and under 25 ℃ of temperature, penetration of bitumens is greater than 40dmm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100200013A CN1324086C (en) | 2005-12-13 | 2005-12-13 | Laminated silicate clay nano modified alphalt and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100200013A CN1324086C (en) | 2005-12-13 | 2005-12-13 | Laminated silicate clay nano modified alphalt and its preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1775865A true CN1775865A (en) | 2006-05-24 |
| CN1324086C CN1324086C (en) | 2007-07-04 |
Family
ID=36765591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100200013A Expired - Fee Related CN1324086C (en) | 2005-12-13 | 2005-12-13 | Laminated silicate clay nano modified alphalt and its preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1324086C (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451064C (en) * | 2006-07-31 | 2009-01-14 | 西安高远公路养护技术有限公司 | Rut resisting admixutre for high-grade asphalt highway |
| CN1935905B (en) * | 2006-09-30 | 2010-05-12 | 武汉理工大学 | Age-resistant modified asphalt and its preparing method |
| CN101838468A (en) * | 2010-05-19 | 2010-09-22 | 西安国琳再生技术研究有限公司 | Nanometer silicon powder compound modified bitumen composition and method for preparing same |
| CN101230199B (en) * | 2007-12-28 | 2011-08-10 | 中国石油大学(华东) | Method for preparing asphalt-based nano composite material |
| CN102181162A (en) * | 2011-03-21 | 2011-09-14 | 武汉理工大学 | Aging resistance SBR (Styrenebutadiene rubber) modified road asphalt of magnalium base layer double hydroxide and preparation method of asphalt |
| CN102181161A (en) * | 2011-03-21 | 2011-09-14 | 武汉理工大学 | Ageing-resistant road asphalt based on magnesium-aluminum-based laminar double hydroxide and preparation method thereof |
| CN102199359A (en) * | 2011-03-21 | 2011-09-28 | 武汉理工大学 | Anti-aging plastomer modified asphalt coating material with magnalium-based layed double hydroxide and preparation method thereof |
| CN103146208A (en) * | 2013-03-20 | 2013-06-12 | 武汉理工大学 | Expanded vermiculite/aluminium hydroxide synergetic flame retardant asphalt and preparation method thereof |
| CN103553444A (en) * | 2013-10-26 | 2014-02-05 | 长安大学 | Modified bituminous concrete with self-regulating temperature function |
| CN103897414A (en) * | 2014-04-16 | 2014-07-02 | 湖南大学 | Compound ageing-resistant road asphalt and preparation method thereof |
| CN104629388A (en) * | 2015-01-28 | 2015-05-20 | 中山职业技术学院 | Corrosion-resistant aging-resistant modified asphalt emulsion for offshore pavement and preparation method thereof |
| CN105440708A (en) * | 2015-12-20 | 2016-03-30 | 华南理工大学 | Preparation methods for diisocyanate-modified montmorillonite and modified asphalt by employing diisocyanate-modified montmorillonite |
| CN105623285A (en) * | 2016-01-13 | 2016-06-01 | 武汉理工大学 | Ultraviolet absorption and light component inhibition material for asphalt |
| CN106497102A (en) * | 2016-11-04 | 2017-03-15 | 深圳市博富隆新材料科技有限公司 | A kind of road construction modified pitch and preparation method thereof |
| CN107189458A (en) * | 2017-06-26 | 2017-09-22 | 长安大学 | A kind of modified pitch with hot storage stability and preparation method thereof |
| CN107434378A (en) * | 2017-08-22 | 2017-12-05 | 绍兴职业技术学院 | A kind of sponge city low-carbon environment-friendly waste asphalt mixture composite permeable mortar and preparation method thereof |
| CN107987543A (en) * | 2017-12-21 | 2018-05-04 | 中冶南方城市建设工程技术有限公司 | A kind of phyllosilicate and lake asphalt composite modified asphalt and preparation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58201822A (en) * | 1982-05-18 | 1983-11-24 | Japan Synthetic Rubber Co Ltd | Preparation of modified asphalt emulsion |
| US6149831A (en) * | 1999-02-18 | 2000-11-21 | Johns Manville International, Inc. | Perlite-based insulation board |
| JP2001123056A (en) * | 1999-10-26 | 2001-05-08 | Mitsubishi Engineering Plastics Corp | Frame retardant polycarbonate resin composition |
| US6569351B1 (en) * | 2000-03-14 | 2003-05-27 | Ergon, Inc. | Accelerator-gel additive for use in the production of polymer-modified asphalt |
| KR20040021781A (en) * | 2002-09-04 | 2004-03-11 | 금호석유화학 주식회사 | Manufacturing method of modified asphalt for controlling separation |
| CN1249167C (en) * | 2003-10-23 | 2006-04-05 | 上海交通大学 | Preparation method of polymer modified asphalt material with high temporature storage stability |
-
2005
- 2005-12-13 CN CNB2005100200013A patent/CN1324086C/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451064C (en) * | 2006-07-31 | 2009-01-14 | 西安高远公路养护技术有限公司 | Rut resisting admixutre for high-grade asphalt highway |
| CN1935905B (en) * | 2006-09-30 | 2010-05-12 | 武汉理工大学 | Age-resistant modified asphalt and its preparing method |
| CN101230199B (en) * | 2007-12-28 | 2011-08-10 | 中国石油大学(华东) | Method for preparing asphalt-based nano composite material |
| CN101838468A (en) * | 2010-05-19 | 2010-09-22 | 西安国琳再生技术研究有限公司 | Nanometer silicon powder compound modified bitumen composition and method for preparing same |
| CN102181162A (en) * | 2011-03-21 | 2011-09-14 | 武汉理工大学 | Aging resistance SBR (Styrenebutadiene rubber) modified road asphalt of magnalium base layer double hydroxide and preparation method of asphalt |
| CN102181161A (en) * | 2011-03-21 | 2011-09-14 | 武汉理工大学 | Ageing-resistant road asphalt based on magnesium-aluminum-based laminar double hydroxide and preparation method thereof |
| CN102199359A (en) * | 2011-03-21 | 2011-09-28 | 武汉理工大学 | Anti-aging plastomer modified asphalt coating material with magnalium-based layed double hydroxide and preparation method thereof |
| CN102181162B (en) * | 2011-03-21 | 2012-11-07 | 武汉理工大学 | Aging resistance SBR (Styrenebutadiene rubber) modified road asphalt of magnalium base layer double hydroxide and preparation method of asphalt |
| CN102181161B (en) * | 2011-03-21 | 2012-11-07 | 武汉理工大学 | Ageing-resistant road asphalt based on magnesium-aluminum-based laminar double hydroxide and preparation method thereof |
| CN103146208A (en) * | 2013-03-20 | 2013-06-12 | 武汉理工大学 | Expanded vermiculite/aluminium hydroxide synergetic flame retardant asphalt and preparation method thereof |
| CN103553444A (en) * | 2013-10-26 | 2014-02-05 | 长安大学 | Modified bituminous concrete with self-regulating temperature function |
| CN103553444B (en) * | 2013-10-26 | 2015-06-10 | 长安大学 | Modified bituminous concrete with self-regulating temperature function |
| CN103897414A (en) * | 2014-04-16 | 2014-07-02 | 湖南大学 | Compound ageing-resistant road asphalt and preparation method thereof |
| CN103897414B (en) * | 2014-04-16 | 2016-06-22 | 湖南大学 | A kind of composite ageing-resistant road asphalt and preparation method thereof |
| CN104629388A (en) * | 2015-01-28 | 2015-05-20 | 中山职业技术学院 | Corrosion-resistant aging-resistant modified asphalt emulsion for offshore pavement and preparation method thereof |
| CN105440708A (en) * | 2015-12-20 | 2016-03-30 | 华南理工大学 | Preparation methods for diisocyanate-modified montmorillonite and modified asphalt by employing diisocyanate-modified montmorillonite |
| CN105623285A (en) * | 2016-01-13 | 2016-06-01 | 武汉理工大学 | Ultraviolet absorption and light component inhibition material for asphalt |
| CN105623285B (en) * | 2016-01-13 | 2017-12-08 | 武汉理工大学 | Pitch UV Absorption and light components suppress material |
| CN106497102A (en) * | 2016-11-04 | 2017-03-15 | 深圳市博富隆新材料科技有限公司 | A kind of road construction modified pitch and preparation method thereof |
| CN107189458A (en) * | 2017-06-26 | 2017-09-22 | 长安大学 | A kind of modified pitch with hot storage stability and preparation method thereof |
| CN107434378A (en) * | 2017-08-22 | 2017-12-05 | 绍兴职业技术学院 | A kind of sponge city low-carbon environment-friendly waste asphalt mixture composite permeable mortar and preparation method thereof |
| CN107434378B (en) * | 2017-08-22 | 2020-10-09 | 绍兴职业技术学院 | Low-carbon environment-friendly waste asphalt mixture composite permeable mortar for sponge city and preparation method thereof |
| CN107987543A (en) * | 2017-12-21 | 2018-05-04 | 中冶南方城市建设工程技术有限公司 | A kind of phyllosilicate and lake asphalt composite modified asphalt and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1324086C (en) | 2007-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1324086C (en) | Laminated silicate clay nano modified alphalt and its preparing method | |
| AU2018256540B2 (en) | Novel asphalt binder additive compositions and methods of use | |
| CN1313566C (en) | Waste rubber powder modified asphalt and its prepn process | |
| JP3735217B2 (en) | Asphalt pavement binder, its production method, asphalt concrete pavement composition production method, pavement composition, pavement surface, and method for increasing compatibility between crumb rubber and asphalt cement | |
| CN101165102B (en) | Traffic anti-track asphalt modifier and its modified asphalt and asphalt mixture | |
| CN102153874A (en) | Composite modified asphalt and preparation method thereof | |
| Eisa et al. | Mechanical properties of asphalt concrete modified with carbon nanotubes (CNTs) | |
| WO1999011737A1 (en) | Bitumen or asphalt for producing a road topping, road topping and method for the production of bitumen or asphalt | |
| CN101063000A (en) | Bitumen modifier for traffic tracking resistance and modified bitumen and mixer thereof | |
| WO2009137299A2 (en) | Rosin oil-modified bitumen and the bituminous composition containing thereof | |
| EP2635639A1 (en) | Utilization of heavy oil fly ash to improve asphalt binder and asphalt concrete performance | |
| CN101492570A (en) | Hard road bitumen compositions and preparation process | |
| Babagoli | Laboratory investigation of the performance of binders and asphalt mixtures modified by carbon nano tube, poly phosphoric acid, and styrene butadiene rubber | |
| CN111363371A (en) | Environment-friendly low-grade composite modified high-modulus asphalt and preparation method thereof | |
| CN112592596A (en) | Durable asphalt based on low-grade asphalt and preparation method thereof | |
| KR20160119115A (en) | Plastomer-modified asphalt binders meeting mscr specifications, asphalt paving materials with such asphalt binders, and methods for fabricating such asphalt binders | |
| Li et al. | Effect of montmorillonite modification on resistance to thermal oxidation aging of asphalt binder | |
| Al-Rubaie et al. | Assessment the performance of asphalt mixtures modified with waste tire rubber at high temperatures | |
| CN101386498A (en) | Method for preparing gelatine powder dual-composite modified asphalt | |
| EP1254925A2 (en) | Bitumen for producing a road topping, a roofing sheet, bitumen in water emulsion form for solidifying a ballast layer or for producing paints and use of paraffin obtained by Fischer-Tropsch synthesis | |
| JP3919853B2 (en) | Method of using very hard bituminous binders in the manufacture of bitumen coverings, especially for pavement foundation layers | |
| KR100651350B1 (en) | Composition for reforming asphalt and preparing method for asphalt mixture using the same | |
| Shaffie et al. | Investigation on rutting performance of nanopolyacrylate and natural rubber latex polymer modified asphalt binder mixes | |
| CN105884265A (en) | Asphalt mixture pavement | |
| JP2005048001A (en) | Asphalt mixture |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070704 Termination date: 20100113 |