تاثیر پیرشدگی بلند‏مدت بر ترک‌خوردگی دماپایین مخلوط‌های آسفالتی با استفاده از روش‌های مکانیکی و ترمودینامیکی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه عمران، دانشکده فنی، دانشگاه گیلان، رشت، ایران

2 عضو هیئت علمی دانشکده مهندسی عمران، دانشگاه ارومیه

3 گروه عمران، دانشکده فنی، دانشگاه ارومیه، ارومیه، ایران

چکیده

در اکثر پژوهش‌های موجود به منظور بررسی پیرشدگی بر عملکرد مخلوط آسفالتی از نتایج آزمایش‌های مکانیکی به منظور بررسی پتانسیل ترک خوردگی حرارتی یک مخلوط آسفالتی استفاده می‌شود و به خصوصیات پایه‌ای مصالح که در رخداد ترک‌خوردگی دماپایین مهم هستند، کمتر توجه می‏شود. بر این اساس، مطالعه حاضر به بررسی تاثیر پیرشدگی بر ترک‏خوردگی دماپایین 12 ترکیب مختلف مخلوط آسفالتی از طریق روش‏های مکانیکی و انرژی آزاد سطحی، که بر پایه خصوصیات اصلی مواد است، پرداخته است. ارزیابی ترک‏خوردگی حرارتی مخلوط‏های آسفالتی از طریق انجام آزمایش مکانیکی خمش نیم دایره‏ای و آزمایش‏های ترمودینامیکی از طریق تعیین مولفه‌های انرژی آزاد سطحی قیر و سنگدانه انجام شده است. نتایج به دست آمده نشان دادند که پارامترهای انرژی شکست و چقرمگی شکست که به عنوان شاخص تعیین حساسیت مخلوط آسفالتی در برابر ترک‌خوردگی دمایی شناخته می‌شوند، برای مخلوط‏های آسفالتی پیرشده به ترتیب بین 3/6 تا 7/13 درصد و بین 5/6 تا 7/10 درصد کمتر از مخلوط‏های کنترل می‏باشد. نتایج آزمایش‌های انرژی آزاد سطحی نشان می‌دهد پیرشدگی باعث افزایش در مولفه غیرقطبی بین 1/3-1/5 درصد و کاهش در مولفه‌های اسیدی و بازی انرژی آزاد سطحی قیر به ترتیب بین 2/41-4/53 درصد و بین 2/334-6/349 درصد می‌شود. این نتایج باعث شده است تا مقدار انرژی آزاد پیوستگی از 63/0 تا 03/1 (ergs/cm2) افزایش یابد. همچنین، پیرشدگی باعث کاهش در انرژی آزاد چسبندگی قیر-سنگدانه می‌شود که مقدار حداکثر کاهش 61/2 (ergs/cm2) بوده است. این بدان معناست که پیرشدگی باعث کاهش پوشش‌پذیری قیر بر روی سطح سنگدانه و مقاومت در برابر گسیختگی در سطح تماس قیر-سنگدانه می‏شود.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Effect of long-term aging on low-temperature cracking of asphalt mixtures using mechanical and thermodynamic methods

نویسندگان [English]

  • Gholam Hossein Hamedi 1
  • Hamid shirmohammadi 2
  • Pouya Moradi 3
1 Department of Civil Engineering, Faculty of Engineering, University of Gholam, Rasht, Iran
2 Faculty of Civil Engineering, Urmia University, Urmia
3 Department of Civil Engineering, Faculty of Engineering, Urmia University, Urmia, Iran
چکیده [English]

In most existing studies to investigate the aging performance of asphalt mixes, the results of mechanical tests are used to investigate the thermal cracking potential of an asphalt mix and less attention is paid to the basic properties of materials that are important in the event of this cracking. Accordingly, the present study investigates the effect of aging on thermal cracking of 12 different compositions of asphalt mixtures through mechanical methods and free surface energy (SFE), which is based on the main properties of the material. Thermal cracking of asphalt mixtures has been evaluated by performing semi-circular bending mechanical tests and thermodynamic tests by determining the SFE components of bitumen and aggregates. The results showed that the parameters of fracture energy and fracture toughness, which are known as indicators of sensitivity of asphalt mix to thermal cracking, for aged asphalt mixtures between 6.3-13.7% and between 6.5-10.7%, respectively. The results of SFE tests show that aging causes an increase in the non-polar component between 1.3-1.5% and a decrease in the acidic and basic free energy components of bitumen between 41.1-53.4% and between 334.2-349.6%, respectively. These results have increased the amount of free cohesive energy from 0.63 to 1.03 (ergs/cm2). Also, aging reduces the free energy of bitumen-aggregate adhesion with a maximum reduction of 2.61 (ergs/cm2). This means that aging reduces the coverability of bitumen on the aggregate surface and the resistance to fracture at the bitumen-aggregate interface.

کلیدواژه‌ها [English]

  • Hot asphalt mix
  • Thermal cracking
  • aging
  • Semicircular bending test
  • Surface free energy

مراجع

1.Liu, C. Ma, W. Cao, J. Fang, Influence of aluminate coupling agent on low-temperature rheological performance of asphalt mastic, Construction and Building Materials, 24(5) (2010) 650-659.
2.Jung, T.S. Vinson, Low-temperature cracking: test selection, 1994.
3.Li, T. Li, H. Chen, Z. Zhang, Evaluation of Low-Temperature Properties of Long-Term-Aged Asphalt Mixtures, in: GeoHunan International Conference: Challenges and Recent Advances in Pavement Technologies and Transportation Geotechnics, 2009.
4.Wang, L. Sun, Y. Qin, Aging mechanism of SBS modified asphalt based on chemical reaction kinetics, Construction and Building Materials, 91 (2015) 47-56.
5.Brown, P.S. Kandhal, F.L. Roberts, Y.R. Kim, D.-Y. Lee, T.W. Kennedy, Hot mix asphalt materials, mixture design, and construction, NAPA Research and Education Foundation, Lanham, MD, (2009).
6.C.J. Glover, A.E. Martin, A. Chowdhury, R. Han, N. Prapaitrakul, X. Jin, J. Lawrence, Evaluation of binder aging and its influence in aging of hot mix asphalt concrete: literature review and experimental design, Texas Transportation Institute, 2009.
7.D.K. Paul, O. Sirin, E. Kassem, Laboratory investigation of asphalt mixture aging, in:  Proceedings of 6th Eurasphalt & Eurobitume Congress, 2016.
8.Cheng, Surface free energy of asphalt-aggregate system and performance analysis of asphalt concrete based on surface free energy, (2003).
9.Schapery, Nonlinear fracture analysis of viscoelastic composite materials based on a generalized J integral theory, Composite materials: Mechanics, mechanical properties and fabrication, (1982) 171-180.
10.E.K. Ofori-Abebresse, Fatigue resistance of hot-mix asphalt concrete (HMAC) mixtures using the calibrated mechanistic with surface energy (CMSE) measurements approach, Texas A&M University, 2006.
11.N.L. Li, X.P. Zhao, C.L. Zhang, Q.Y. Xiao, H.H. Li, Effect of Aging on the Low-Temperature Properties of Asphalt Mixture, in:  Applied Mechanics and Materials, Trans Tech Pub., 2013, pp. 383-386.
12.Zhang, J.E. Sias, E.V. Dave, R. Rahbar-Rastegar, Impact of Aging on the Viscoelastic Properties and Cracking Behavior of Asphalt Mixtures, Transportation Research Record, 2673(6) (2019) 406-415.
13.Azarhoosh, F. Moghadas Nejad, A. Khodaii, The influence of cohesion and adhesion parameters on the fatigue life of hot mix asphalt, The Journal of Adhesion, 93(13) (2017) 1048-1067.
14.Cong, J. Peng, Z. Guo, Q. Wang, Evaluation of fatigue cracking in asphalt mixtures based on surface energy, Journal of Materials in Civil Engineering, 29(3) (2017) D4015003.
15.A.R. Azarhoosh, Evaluating fatigue of asphalt mixtures using surface free energy method, Amirkabir University of Technology, 2018.
16.Azarhoosh, F. Moghadas Nejad, A. Khodaii, Using the surface free energy method to evaluate the effects of nanomaterial on the fatigue life of hot mix asphalt, Journal of Materials in Civil Engineering, 28(10) (2016) 04016098.
17.Azarhoosh, H.F. Abandansari, G.H. Hamedi, Surface-Free Energy and Fatigue Performance of Hot-Mix Asphalt Modified with Nano Lime, Journal of Materials in Civil Engineering, 31(9) (2019) 04019192.
18.Esmaeili, G.H. Hamedi, M. Khodadadi, Determination of the stripping process of asphalt mixtures and the effective mix design and SFE parameters on its different phases, Construction and Building Materials, 213 (2019) 167-181.
19.Esmaeili, G.H. Hamedi, M. Khodadadi, Determination of the stripping process of asphalt mixtures and the effective mix design and SFE parameters on its different phases, Construction and Building Materials, 213 (2019) 167-181.
20.ASTM, D 3515: Standard specification hot-mixed, hot laid bituminous paving mixtures, Annual book of standards, 4 (2004).
21.L.A. ERSHAD, A.A. YOUSEFI, Study of viscoelastic behavior of bitumen-polyethylene blends,  (2003).
22.G.H. Hamedi, K.G. Shamami, M.M. Pakenari, Effect of ultra-high-molecular-weight polyethylene on the performance characteristics of hot mix asphalt, Construction and Building Materials, 258 (2020) 119729.
23.G.H. Hamedi, M.H. Pirbasti, Z.R. Pirbasti, Investigating the Effect of Using Waste Ultra-high-molecular-weight Polyethylene on the Fatigue Life of Asphalt Mixture, Periodica Polytechnica Civil Engineering, (2020).
24.Sreedhar, E. Coleri, Effects of binder content, density, gradation, and polymer modification on cracking and rutting resistance of asphalt mixtures used in Oregon, Journal of Materials in Civil Engineering, 30(11) (2018) 04018298.
25.Du, C. Ai, S. An, Y. Qiu, Rheological Properties at Low Temperatures and Chemical Analysis of a Composite Asphalt Modified with Polyphosphoric Acid, Journal of Materials in Civil Engineering, 32(5) (2020) 04020075.
26.MS-2 Asphalt Mix Design Methods, Asphalt Institute, 2014.
27.M.K. Idham, H. Mohd Rosli, H. Yaacob, M.N.M. Warid, M.E. Abdullah, Effect of aging on resilient modulus of hot mix asphalt mixtures, in:  Advanced Materials Research, Trans Tech Publ, 2013, pp. 291-297.
28.Nsengiyumva, Y.-R. Kim, T. You, Development of a Semicircular Bend (SCB) Test Method for Performance Testing of Nebraska Asphalt Mixtures, (2015).
29.Marasteanu, W. Buttlar, H. Bahia, C. Williams, K.H. Moon, E.Z. Teshale, A.C. Falchetto, M. Turos, E. Dave, G. Paulino, Investigation of low temperature cracking in asphalt pavements national pooled fund study–phase II, (2012).
30.ASTM D6521, Standard practice for accelerated aging of asphalt binder using a pressurized aging vessel (PAV), in:  USA: Annual Book of ASTM Standards, 2019.
31.ASTM D2867, Standard test method for effect of heat and air on a moving film of asphalt (rolling thin-film oven test), USA: Annual Book of ASTM Standards, (2012).
32.C.J. Van Oss, M.K. Chaudhury, R.J. Good, Interfacial Lifshitz-van der Waals and polar interactions in macroscopic systems, Chemical Reviews, 88(6) (1988) 927-941.
33.P.V. Peltonen, Road aggregate choice based on silicate quality and bitumen adhesion, Journal of transportation engineering, 118(1) (1992) 50-61.
34.Lu, U. Isacsson, J. Ekblad, Influence of polymer modification on low temperature behavior of bituminous binders and mixtures, Materials and Structures, 36(10) (2003) 652-656.
35.Zhang, G. Xu, X. Chen, R. Wang, K. Shen, Effect of long-term laboratory aging on rheological properties and cracking resistance of polymer-modified asphalt binders at intermediate and low temperature range, Construction and Building Materials, 226 (2019) 767-777.
36.Teltayev, C. Rossi, G. Izmailova, E. Amirbayev, A. Elshibayev, Evaluating the effect of asphalt binder modification on the low-temperature cracking resistance of hot mix asphalt, Case Studies in Construction Materials, 11 (2019) e00238.
37.Sun, X. Xin, J. Ren, Asphalt modification using nano-materials and polymers composite considering high and low temperature performance, Construction and Building Materials, 133 (2017) 358-366.
38.H.-l. Zhang, M.-m. Su, S.-f. Zhao, Y.-p. Zhang, Z.-p. Zhang, High and low temperature properties of nano-particles/polymer modified asphalt, Construction and Building Materials, 114 (2016) 323-332.
39.Abdelaziz, C.-H. Ho, M. Snyder, Evaluating the Influence of Polymer Modified Asphalt Binders on Low Temperature Properties, in:  MATEC Web of Conferences, EDP Sciences, 2018, pp. 05012.
نشریه مهندسی عمران امیرکبیر
دوره 53، شماره 11
بهمن 1400
صفحه 4787-4808

فایل ها

هم رسانی

ارجاع به این مقاله

آمار