پیوندهای مفید
آمار
| تعداد نشریات | 9 |
| تعداد شمارهها | 452 |
| تعداد مقالات | 5,748 |
| تعداد مشاهده مقاله | 8,233,629 |
| تعداد دریافت فایل اصل مقاله | 6,751,332 |
Evaluation of Nano Hydrated Lime on the Moisture Susceptibility of Asphalt Mixtures Using Surface Free Energy | ||
| AUT Journal of Civil Engineering | ||
| مقاله 11، دوره 4، شماره 1، خرداد 2020، صفحه 125-136 اصل مقاله (1.3 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/ajce.2019.15269.5530 | ||
| نویسندگان | ||
| Alireza Azarhoosh* 1؛ Mohammad Javad Azarhoosh2 | ||
| 1Department of Civil Engineering, University of Bojnord, Bojnord, Iran | ||
| 2Chemical Engineering Department, Faculty of Engineering, Urmia University. | ||
| چکیده | ||
| Moisture damage is one of the common causes of asphalt pavement failure in moisture presence. To reduce this damage, different additives such as lime, liquid anti stripping, etc. is conventionally added to mix. In this study, the effect of nano hydrated lime (Nano-HL), on the moisture susceptibility of asphalt mixtures was investigated by applying surface free energy principals, indirect tensile strength and resilient modulus tests. The asphalt specimens were prepared with granite aggregate and neat bitumen of 60/70 penetration grade containing 0%, 3% and 6% Nano-HL by bitumen weight. The results of this study indicate that modification of bitumen with Nano-HL decreases the acidic component of surface free energy and increases its basic components. So these changes improve the adhesion between the bitumen and aggregate. Also, cohesion free energy of bitumen is improved by an increase in a nonpolar component of bitumen. Furthermore, the results of the indirect tensile strength test and resilient modulus test indicate that the addition of Nano-HL in mixtures causes an increase in ITS and Mr values of modified HMA. On the other hand, the de-bonding energy of bitumen-aggregate for bitumen modified with this Nano material was decreased. This led to an increased resistance to moisture damage. | ||
| کلیدواژهها | ||
| Moisture Damage؛ Nano Hydrated Lime؛ Surface Free Energy؛ Resilient Modulus Ratio؛ Tensile Strength Ratio | ||
| مراجع | ||
|
[1] A. Bhasin, Development of methods to quantify bitumen-aggregate adhesion and loss of adhesion due to water, Texas A&M University, 2007.
[2] J. Grenfell, N. Ahmad, Y. Liu, A. Apeagyei, D. Large, G. Airey, Assessing asphalt mixture moisture susceptibility through intrinsic adhesion, bitumen stripping and mechanical damage, Road Materials and Pavement Design, 15(1) (2014) 131-152.
[3] X. Chen, B. Huang, Evaluation of moisture damage in hot mix asphalt using simple performance and superpave indirect tensile tests, Construction and Building Materials, 22(9) (2008) 1950-1962.
[4] F. Xiao, J. Jordan, S. Amirkhanian, Laboratory investigation of moisture damage in warm-mix asphalt containing moist aggregate, Transportation Research Record: Journal of the Transportation Research Board, (2126) (2009) 115-124.
[5] H. Wen, Fatigue performance evaluation of WesTrack asphalt mixtures based on viscoelastic analysis of indirect tensile test, (2001).
[6] D. Packham, Work of adhesion: contact angles and contact mechanics, International journal of adhesion and adhesives, 16(2) (1996) 121-128.
[7] W.J. Steyn, Applications of nanotechnology in road pavement engineering, in: Nanotechnology in Civil Infrastructure, Springer, 2011, pp. 49-83.
[8] S. Ghaffarpour Jahromi, A. Khodaii, Identification effect of nanoclay on engineering properties of asphalt mixtures, Amirkabir International Journal of Modeling, Identification, Simulation & Control, 41(1) (2009) 49-57.
[9] G.H. Hamedi, The Effect of Asphalt Binder Modification with SBR Polymer on Moisture Sensitivity of Hot Mix Asphalt, AUT Journal of Civil Engineering, 50(5) (2017) 865-876.
[10] F.M. Nejad, A. Azarhoosh, G.H. Hamedi, M. Azarhoosh, Influence of using nonmaterial to reduce the moisture susceptibility of hot mix asphalt, Construction and Building Materials, 31 (2012) 384-388.
[11] A. Akbari, A. Modarres, Effect of clay and lime nano-additives on the freeze–thaw durability of hot mix asphalt, Road Materials and Pavement Design, 18(3) (2017) 646-669.
[12] A. Azarhoosh, F. Moghaddas Nejad, A. Khodaii, Evaluation of the effect of nano-TiO2 on the adhesion between aggregate and asphalt binder in hot mix asphalt, European Journal of Environmental and Civil Engineering, (2016) 1-16.
[13] ASTM D3515-01, Standard Specification for Hot-Mixed, Hot-Laid Bituminous Paving Mixtures, 2009.
[14] M. Pilar, J. Sunol, J. Bonastre, L. Escoda, Influence of process control agents in the development of a metastable Fe–Zr based alloy, Journal of Non-Crystalline Solids, 353(8-10) (2007) 848-850.
[15] J. Tanzadeh, F. Vahedi, P.T. Kheiry, R. Tanzadeh, Laboratory study on the effect of nano TiO2 on rutting performance of asphalt pavements, in: Advanced Materials Research, Trans Tech Publ, 2013, pp. 990-994.
[16] D. Cheng, D. Little, R. Lytton, J. Holste, Surface energy measurement of asphalt and its application to predicting fatigue and healing in asphalt mixtures, Transportation Research Record: Journal of the Transportation Research Board, (1810) (2002) 44-53.
[17] A. Bhasin, D.N. Little, Characterization of aggregate surface energy using the universal sorption device, Journal of Materials in Civil Engineering, 19(8) (2007) 634-641.
[18] A.W. Hefer, Adhesion in bitumen-aggregate systems and quantification of the effect of water on the adhesive bond, Texas A&M University, 2005.
[19] D. Cheng, D.N. Little, R.L. Lytton, J.C. Holste, Use of surface free energy properties of the asphalt-aggregate system to predict moisture damage potential (with discussion), Journal of the association of asphalt paving technologists, 71 (2002).
[20] M. Solaimanian, R.F. Bonaquist, V. Tandon, Improved conditioning and testing procedures for HMA moisture susceptibility, Transportation Research Board, 2007. | ||
|
آمار تعداد مشاهده مقاله: 725 تعداد دریافت فایل اصل مقاله: 535 |
||