CN1821151A - Asphalt road surface reinforcing material - Google Patents
Asphalt road surface reinforcing material Download PDFInfo
- Publication number
- CN1821151A CN1821151A CN 200510019994 CN200510019994A CN1821151A CN 1821151 A CN1821151 A CN 1821151A CN 200510019994 CN200510019994 CN 200510019994 CN 200510019994 A CN200510019994 A CN 200510019994A CN 1821151 A CN1821151 A CN 1821151A
- Authority
- CN
- China
- Prior art keywords
- asphalt
- test
- strongthener
- road surface
- surface reinforcing
- 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
Images
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The road surface reinforcing asphalt material is one kind of post-added asphalt concrete modifier. It is prepared with PE, PP, POE, antioxidant 1010, stabilizer AT-168 and carbon black and through mixing. The road surface reinforcing asphalt material has wide material source and simple preparation process, and may be stirred and constructed with common asphalt mixer and matched with heavy traffic asphalt. Adding it in small amount of 0.3-0.7 % can raise the road use performance of mixed asphalt material, including strength, high temperature resistance, water resistance, etc. greatly.
Description
Technical field
The present invention relates to a kind of asphalt concrete modifying agent, be specially and mix type properties-correcting agent after a kind of.
Background technology
Bituminous pavement has obtained using widely on China's motorway, airfield runway, urban road and country road road because of its road-ability, advantage such as noise is low, maintenance is convenient in recent years.Yet, early damage phenomenons such as rut, cracking, damage by water evil idea have just appearred in many motorways of China and urban road soon after being open to the traffic, shortened the work-ing life of bituminous pavement greatly, increased the maintenance cost, this has caused the extensive concern of generally paying attention to of traffic department and society, tracing it to its cause mainly is the overload ubiquity, and common bituminous pavement is difficult to adapt to the needs of excess, overweight traffic.
In order to prolong the work-ing life of bituminous pavement, road construction department has taked many measures, as adopt modifying asphalt, add fiber, increase bituminous pavement thickness, adopt the high SMA asphalt pavement structure of price etc., certain effect has been played in these measures, but construction cost but significantly increases.How to improve the work-ing life of bituminous pavement, the material modified and technology of research asphalt is saved the engineering construction cost, improves the work-ing life of bituminous pavement, is the hot issue of domestic and international research work always.
Existing " a kind of plastic waste, waste rubber composite modified asphalt " (number of patent application 99112656) comprises shoddy, coal tar, activator, polyethylene, polypropylene, pitch.Strengthening asphalt for making, is to add fiber mostly, and as " a kind of fibre reinforced asphalt mixture " (number of patent application 02128722), it adds chemical acrylic fiber." a kind of bituminous concrete and cement concrete constructions reinforcing fiber specially " (number of patent application 00136581) adds resisting power, folding strength, high-temperature stability, low temperature flexibility and wear-resistant wear resistance that reinforcing fiber specially can increase goods.
Summary of the invention
The objective of the invention is at above-mentioned present situation, aim to provide a kind of pavement performance that under low-dosage, can significantly improve asphalt, prolong the bituminous pavement asphalt road surface reinforcing material in work-ing life.
The implementation of the object of the invention is, asphalt road surface reinforcing material is mixed by the raw material of following weight ratio %:
Extrusion molding type PE, PP (polyethylene, polypropylene) 85%～95%
POE (ethylene-propylene rubber(EPR) and polyolefin resin) 3%～10%
Antioxidant 1010 0.5%～1%
Stablizer AT-168 0.5%～1%
Carbon black 0.2%～0.5%.
The physical property of this strongthener sees Table 1:
Table 1
| Index | Unit | Numerical value |
| Density | (g/cm3) | 0.840～0.845 |
| Softening temperature | (℃) | 140～160 |
| Particle diameter | mm | 3～4 |
This strongthener has following advantage:
1, counting the fat material with PE, PP thermoplasticity is basestocks, adding certain admixture is processed into, complete processing is simple, these materials can directly be bought from the market simultaneously, can also utilize the waste or used plastics of recovery, with its through after manipulation of regeneration as basic material, therefore goodish environment-friendly function and economic benefit are arranged;
2, easy construction can cooperate conventional asphalt to mix and stir and preparation of construction is constructed, and does not need equipment in addition, only needs the proper extension duration of mixing and the time of rolling just can reach the ideal construction effect;
3, can under the situation of mixture quality 0.3%～0.7%, increase substantially the pavement performance of asphalt than low-dosage, comprise: intensity, the ability of high temperature opposing tension set, anti-damage by water ability, crack resistance at low-temperature, fatigue property etc.;
When 4, directly cooperating heavy traffic paving asphalt to use simultaneously, the performance of the asphalt of producing is higher than modified asphalt mixture, cost ratio modified asphalt compound low 11～17%;
When 5, cooperating modified asphalt mixture to use simultaneously, make the modified asphalt mixture pavement performance further improve, to be applied to special bituminous pavement, as paving steel bridge deck.
This strongthener mixes in the asphaltic binder, the intensity of asphalt, anti-rutting deformation ability, anti-low-temperature cracking ability, anti-damage by water ability and fatigue property etc. have been improved greatly, thereby prolong the work-ing life of bituminous pavement, prolonged more than 2 times the work-ing life of bituminous pavement.
Description of drawings
Fig. 1 is the granular synoptic diagram of this strongthener
Fig. 2 a, b, c, d are the final deformation pattern of asphaltic road-mix surface course under the different volumes of this strongthener
Embodiment
This strongthener is mixed by extrusion molding type PE (polyethylene), PP (polypropylene), POE (ethylene-propylene rubber(EPR) and polyolefin resin), antioxidant 1010, stablizer AT-168, carbon black.Wherein extrusion molding type polythene PE or PP polypropylene are main base-material.Extrusion molding type PE (polyethylene) combined amount is 50%-60%, and extrusion molding type PP (polypropylene) combined amount is 34%-37.5%.POE (ethylene-propylene rubber(EPR) and polyolefin resin) has good weather and elasticity, can effectively improve the elastic resilience of synthetics, and reduce softening temperature, POE is 7% o'clock, the synthetics softening temperature is reduced to 135 ℃, can make this strongthener firm with the pitch and the gluing of gathering materials.Antioxidant 1010 can effectively suppress and delay the Degradation of polymer substance.Stablizer AT-168 can effectively improve the resistance toheat of properties-correcting agent, the use that combines of it and oxidation inhibitor.Carbon black is as antiaging agent, and it is aging to make material can prevent effectively that ultraviolet radiation from causing.
This strongthener is softening in mixing and stirring, roll in the process of asphalt, combine closely with pitch and building stones, filled the space in the skeleton simultaneously, form crosslinked, reinforced action, thereby reduced the perviousness of asphalt, improve the inner cohesion of asphalt, and then improved the intensity of compound; Simultaneously, the elastic component of material still works when comparatively high temps, makes energy of deformation resilience, the recovery on road surface, has reduced the permanent deformation of asphalt significantly.
Enumerate formulation Example of the present invention below:
| 1 | 2 | 3 | |
| PE (polyethylene) PP (polypropylene) POE (ethylene-propylene rubber(EPR) and polyolefin resin) antioxidant 1010 stablizer AT-168 carbon black | 60％ 34％ 3.8％ 0.5％ 0.5％ 0.2％ | 55.8％ 35％ 7％ 1％ 1％ 0.2％ | 50％ 37.5％ 10％ 0.5％ 0.5％ 0.5％ |
The bituminous concrete performance index that this strongthener of AC-16+7 ‰ each embodiment is mated formation are as follows:
| 1 | 2 | 3 | |
| Dynamic stability is (inferior/mm) cleavage strength (15 ℃, Mpa) TSR (%) stretching strain (μ ε) stiffness modulus (Mpa) | 12600 3.18 93.7 1246.6 13722.5 | 11300 3.01 91.8 1276.3 14322.5 | 9828 2.88 92.4 1331.6 13992.5 |
Embodiment 1 is used for the surface layer or the upper layer of very heavy traffic bituminous pavement, and embodiment 2 is used for the surface layer or the following surface layer of very heavy traffic bituminous pavement, and embodiment 3 is used for each layer position on heavy traffic asphaltum road surface.
This strongthener after mixing, can directly adopt the plain asphalt compound to mix and stir, pave and rolling apparatus construction directly with machinery or manually be added into asphalt in proportion from the batching plant window.
The asphalt of mixing this strongthener is carried out the pavement performance test of system according to the test method of the Ministry of Communications's rules " highway engineering pitch and asphalt testing regulation " JTJ052-2000, comprise high-temperature rutting test, freeze thawing split test, low temperature girder limit pliability test, fatigue test, test adopts common heavy friendship AH-70 pitch to test, this strongthener that adds different ratios according to the test needs is to carry out property comparison, and while part technical indicator and certain add type PG 76-22SBS modified asphalt mixture in advance and is analyzed.
The test temperature of various test subjects and the test method of employing and required test specimen quantity see Table 2.
Table 2 test subject, condition, method and test specimen quantity
| Test subject | Test temperature | Test method | Test specimen quantity |
| Marshall Test | 60℃ | T0709-2000 | 4 * 2 groups |
| The freeze thawing split test | 25℃ | T0729-2000 | 8 * 3 groups |
| Wheel tracking test | 60℃ | T0719-1993 | 3 * 3 groups |
| The low temperature limit pliability test | -10℃ | T0715-1993 | 6 * 3 groups |
| The splitting fatigue test | 15℃ | - | 12 * 2 groups |
The anti-damage by water performance of asphalt refers to the performance of bituminous pavement opposing water destruct, utilizes the ability of the anti-water damage that the freeze thawing split test can the effectively evaluating asphalt.The freeze thawing split test all (JTJ052-2000) is carried out by " highway engineering pitch and asphalt testing regulation ", adopts the marshal piece forming method, and hitting real number of times is two-sided 50 times, and the target voidage is between 6%～7%.The temperature that the freeze thawing test specimen carries out split test is 25 ℃, and the test loading rate is 50mm/min.The freeze thawing split test of asphalt the results are shown in Table 3,
Table 3 asphalt freeze thawing split test calculation result
| Project | Cleavage strength (Mpa) before the freeze thawing | Cleavage strength after the freeze thawing (Mpa) | TSR (％) |
| AC-16(AH-70) | 1.001 | 0.803 | 80.3％ |
| ‰ strongthener of AC-16+7 | 1.501 | 1.407 | 93.7％ |
| AC-16(PG76-22SBS) | 1.35 | 1.21 | 89.6％ |
As seen from the table, after mixing this strongthener, the cleavage strength of compound improves a lot, amplitude reaches 50%, the TSR strength ratio shows simultaneously, the anti-damage by water ability of compound also improves a lot, and from original 80.7% bringing up to 91.3% (also be better than SBS modified asphalt mixture 89.6%), so this strongthener improves the intensity of asphalt and anti-damage by water performance very big contribution is arranged.
Wheel tracking test can the effectively evaluating asphalt high-temperature behavior.The temperature that wheel tracking test adopts is 60 ℃, 70 ℃ two temperature, the experimental wheel tire pressure is 0.70Mpa, rut plate sample dimensions is 30cm * 30cm * 5cm, and it is 150 ℃～155 ℃ that the rut test piece moulding rolls temperature, and the while compares with the compound that SBS (PG 76-22) modifying asphalt is mixed system.Test-results sees Table 4,
Table 4 asphalt mixture in track test result
As seen from Table 4, mix the anti-deforming ability that this strongthener can significantly improve asphalt, along with the increase of strongthener volume, under two temperature, the dynamic stability of asphalt significantly improves, and final distortion is significant to be reduced.Adopt the plain asphalt compound of AH-70, in this strongthener volume 5 ‰～7 ‰ o'clock, its non-deformability has been mixed the compound of system near the SBS modifying asphalt, and surpass (the requirement of DS＞3000 time/mm) of modified asphalt mixture dynamic stability in the standard (60 ℃, P=0.7Mpa) from far away, simultaneously this strongthener uses simultaneously with the SBS modifying asphalt, and the anti-deforming ability of modified asphalt mixture is still had enhancing.
Fig. 2 a, b, c, d are listed in and do not mix this strongthener, mix the final deformation state of this strongthener 0.3%, 0.5%, 0.7% asphalt, operating condition of test is p=0.7Mpa, T=70 ℃, as seen from the figure, mix the basic no distortion in bitumen mixture specimen surface of 0.7% strongthener.
Estimate the crack resistance at low-temperature of asphalt with low temperature girder limit pliability test.The test specimen of low-temperature bending test is the prism girder of 250mm * 30mm * 35mm, and test specimen is formed by the plate-like test specimen cutting of rut, and calculating and striding the footpath is 200mm, and the trier loading rate is 50mm/min, and test temperature is-10 ℃.Test-results sees Table 5,
Table 5 asphalt pliability test result
| Project | Fully-factored load (KN) | Flexural tensile strength (Mpa) | Stiffness modulus (Mpa) | Stretching strain (μ ε) |
| AC-16(AH-70) | 1.47 | 16.93 | 15519.9 | 1114.3 |
| ‰ strongthener of AC-16+7 | 1.49 | 16.73 | 13722.5 | 1246.6 |
| AC-16(PG76-22SBS) | 1.57 | 17.34 | 14879.5 | 1165.5 |
As seen from the table, mix the compound of this strongthener, it is about about 10% that its low temperature damage strain ratio had increased originally, and modulus in flexure had reduced by 11.6% approximately than originally, this illustrates that this strongthener has improved the low temperature brittleness of asphalt effectively, has improved the crack resistance at low-temperature of asphalt.
Estimate the endurance quality of bituminous pavement with the splitting fatigue test of asphalt.The fatigue test temperature is 15 ± 1 ℃, and loading waveform is 10Hz continous way haversine load, and it is 2% of fully-factored load that minimum load is set.The stress ratio of fatigue test gets 0.3,0.4,0.5,0.6 respectively, adopts the cleavage strength value of not mixing static split test under this strongthener situation as maximum stress value, adopts three test specimens at least under each stress ratio of every kind of compound of fatigue test.Fatigue test results sees Table 6.
The fatigue test results of table 6 asphalt
| Stress ratio | Stress (Mpa) | Fatigue lifetime (ten thousand times) | |
| AC-16 mixes 0.7% strongthener | AC-16 does not mix this strongthener | ||
| 0.30 | 0.606 | 16.98 | 5.91 |
| 0.40 | 0.808 | 9.475 | 2.978 |
| 0.50 | 1.01 | 2.84 | 0.9719 |
| 0.60 | 1.212 | 1.2133 | 0.7017 |
As seen from the table, under each stress level, the asphalt of mixing this strongthener is more much higher than the fatigue lifetime of not mixing, and as seen mixes the endurance quality that this strongthener can improve bituminous pavement significantly, prolongs the work-ing life of bituminous pavement.
Claims (2)
1, asphalt road surface reinforcing material is characterized in that being mixed by the raw material of following weight ratio %:
Extrusion molding type PE, PP (polyethylene, polypropylene) 85%～95%
POE (ethylene-propylene rubber(EPR) and polyolefin resin) 3%～10%
Antioxidant 1010 0.5%～1%
Stablizer AT-168 0.5%～1%
Carbon black 0.2%～0.5%.
2, asphalt road surface reinforcing material according to claim 1 is characterized in that extrusion molding type PE (polyethylene) combined amount is 50%-60%, and extrusion molding type PP (polypropylene) combined amount is 34%-37.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100199942A CN100393659C (en) | 2005-12-12 | 2005-12-12 | Asphalt road surface reinforcing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100199942A CN100393659C (en) | 2005-12-12 | 2005-12-12 | Asphalt road surface reinforcing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1821151A true CN1821151A (en) | 2006-08-23 |
| CN100393659C CN100393659C (en) | 2008-06-11 |
Family
ID=36922751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100199942A Expired - Fee Related CN100393659C (en) | 2005-12-12 | 2005-12-12 | Asphalt road surface reinforcing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100393659C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275940B (en) * | 2008-04-29 | 2011-02-09 | 东南大学 | Asphalt mixture freeze thawing splitting experiment vacuum water saturation and soaking method |
| CN101307156B (en) * | 2008-07-11 | 2011-02-16 | 长安大学 | Ageing resistance composite modifying agent for bitumen for road use |
| WO2011057455A1 (en) * | 2009-11-16 | 2011-05-19 | 江苏宝利沥青股份有限公司 | High-strength structural asphalt material |
| CN101549975B (en) * | 2008-07-24 | 2011-08-31 | 江苏宝利沥青股份有限公司 | Asphalt mixing material additive and preparation method thereof |
| CN102504552A (en) * | 2011-10-26 | 2012-06-20 | 中国石油化工股份有限公司 | Road petroleum asphalt anti-ageing agent and preparation method thereof |
| CN101817659B (en) * | 2010-02-01 | 2012-10-17 | 北京天成垦特莱科技有限公司 | Composite road surface intensifier and production method thereof |
| CN102786805A (en) * | 2012-08-31 | 2012-11-21 | 广东银禧科技股份有限公司 | High water-damage resistance asphalt mixture modifying agent, preparation method thereof and application in road paving method |
| CN108395598A (en) * | 2017-02-07 | 2018-08-14 | 中国石油化工股份有限公司 | A kind of anti-rut agent and preparation method thereof with resistance to UV aging |
| CN115216160A (en) * | 2022-08-09 | 2022-10-21 | 佛山市顺德区鑫路材料技术有限公司 | Reinforcing agent applied to production of modified asphalt and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108018B (en) * | 2009-12-29 | 2013-07-17 | 彭富强 | Modified asphalt pavement patching material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002053698A (en) * | 2000-08-04 | 2002-02-19 | Kao Corp | Processing aid for molding material |
| CN1142220C (en) * | 2000-12-27 | 2004-03-17 | 北京奥克兰建筑防水材料有限公司 | Heat-resisting plastomer modified waterproof asphalt coil and its making process |
-
2005
- 2005-12-12 CN CNB2005100199942A patent/CN100393659C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275940B (en) * | 2008-04-29 | 2011-02-09 | 东南大学 | Asphalt mixture freeze thawing splitting experiment vacuum water saturation and soaking method |
| CN101307156B (en) * | 2008-07-11 | 2011-02-16 | 长安大学 | Ageing resistance composite modifying agent for bitumen for road use |
| CN101549975B (en) * | 2008-07-24 | 2011-08-31 | 江苏宝利沥青股份有限公司 | Asphalt mixing material additive and preparation method thereof |
| WO2011057455A1 (en) * | 2009-11-16 | 2011-05-19 | 江苏宝利沥青股份有限公司 | High-strength structural asphalt material |
| CN101817659B (en) * | 2010-02-01 | 2012-10-17 | 北京天成垦特莱科技有限公司 | Composite road surface intensifier and production method thereof |
| CN102504552A (en) * | 2011-10-26 | 2012-06-20 | 中国石油化工股份有限公司 | Road petroleum asphalt anti-ageing agent and preparation method thereof |
| CN102504552B (en) * | 2011-10-26 | 2014-10-22 | 中国石油化工股份有限公司 | Road petroleum asphalt anti-ageing agent and preparation method thereof |
| CN102786805A (en) * | 2012-08-31 | 2012-11-21 | 广东银禧科技股份有限公司 | High water-damage resistance asphalt mixture modifying agent, preparation method thereof and application in road paving method |
| CN102786805B (en) * | 2012-08-31 | 2014-10-22 | 广东银禧科技股份有限公司 | High water-damage resistance asphalt mixture modifying agent, preparation method thereof and application in road paving method |
| CN108395598A (en) * | 2017-02-07 | 2018-08-14 | 中国石油化工股份有限公司 | A kind of anti-rut agent and preparation method thereof with resistance to UV aging |
| CN108395598B (en) * | 2017-02-07 | 2020-06-09 | 中国石油化工股份有限公司 | Anti-rutting agent with ultraviolet aging resistance and preparation method thereof |
| CN115216160A (en) * | 2022-08-09 | 2022-10-21 | 佛山市顺德区鑫路材料技术有限公司 | Reinforcing agent applied to production of modified asphalt and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100393659C (en) | 2008-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100393659C (en) | Asphalt road surface reinforcing material | |
| Gawande et al. | An overview on waste plastic utilization in asphalting of roads | |
| Chen et al. | High modulus asphalt concrete: A state-of-the-art review | |
| Luo et al. | Performance evaluation and material optimization of Micro-surfacing based on cracking and rutting resistance | |
| Xue et al. | Evaluation of pavement straw composite fiber on SMA pavement performances | |
| CN1657708A (en) | Bituonen-concrete-steel bridge floor and its spreading method | |
| Xu et al. | Performance evaluation of waterborne epoxy resin modified emulsified asphalt mixtures for asphalt pavement pothole repair | |
| Kök et al. | Evaluation of the mechanical properties of natural asphalt-modified hot mixture | |
| CN103588423A (en) | Composite synergistic close-graded ultrathin wearing layer asphalt mixture | |
| Abd Al Kareem et al. | The possibility of minimizing rutting distress in asphalt concrete wearing course | |
| CN103588424A (en) | Durable high-modulus asphalt mixture based on hard asphalt particles | |
| Guo et al. | Analysis on the road performance of graphene composite rubber asphalt and its mixture | |
| Vamegh et al. | Effects of styrene butadiene styrene and Lucobite on stone mastic asphalt performance | |
| Naser | Experimental studying the effect of adding styrene butadiene styrene polymer (sbs) on the mechanical properties of hot mixture asphalt | |
| CN1580408A (en) | Reflective crack relief pavement interlayer with improved load bearing capacity and method for designing interlayer | |
| Ajam et al. | Mechanical and environmental study of the valorization of waste tires in bituminous concrete applied in Tunisia | |
| Al-Haydari et al. | Durability and aging characteristics of sustainable paving mixture | |
| CN1687525A (en) | Asphalt pavement of basaltic broken stone | |
| Duan et al. | Design and evaluation of semi self-compacting cold mix polyurethane mixture for steel bridge deck pavement | |
| Omranian et al. | Laboratory investigation on warm mix asphalt incorporating organo-silane additive | |
| Rao | Study on compressive strength of plastic waste bituminous concrete for road construction | |
| Xu et al. | Performance Investigation and Internal-Structure Analysis of Polyurethane Bonded Mixture on Highway Steel Bridge | |
| Burlacu et al. | Reducing cost of infrastructure works using new technologies | |
| CN101481233A (en) | Application of fly ash synthesized channel joint anti-seepage material in preparation of road asphalt mixture | |
| Liu et al. | Laboratory evaluation of the pavement performance of a rubber-modified 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: 20080611 Termination date: 20100112 |