عنوان مقاله [English]
The purpose of this study is to investigate the behavior of notched asphalt sections by using semicircular bending test. To do this, in order to adapt the test conditions to real conditions, a Haversine loading with two different loading duration and a rest period with a ratio of one at a constant temperature of 20°C was used. Asphalt specimens used in this experiment are in two different grading with a nominal maximum aggregate size of 12.5 mm and 25 mm. In order to carry out the investigations, the vertical displacement and crack opening in each loading cycle were recorded and analyzed in two stages of loading. The results showed that in both loading stages, the effect of the maximum diameter of the aggregates on the vertical displacements and the crack opening depended on the loading duration (speed). In the shorter loading duration and the first loading stages, the mixture with the smaller aggregate diameters and, in the second loading stages, the mixture with larger aggregate diameters, exhibited a better resistance to the rutting. In both stages of loading, crack propagation is faster than vertical displacement, which can indicate a faster growth of fatigue cracking than rutting in notched sections.
Ahmed, A. (2015), "Evaluation of cracking potential of Superpave mixtures with high reclaimed asphalt pavement content". Kansas State University (Thesis) .
-Aliha, M., Fazaeli, H., Aghajani, S., & Nejad, F. M. (2015), "Effect of temperature and air void on mixed mode fracture toughness of modified asphalt mixtures. Construction and Building Materials, 95, pp.545-555.
-Allamy, A. K. J. (2016), "Fatigue Behavior of Modified Asphalt Concrete Pavement". Journal of Engineering, 22(2), pp.1-10.
-Aragão, F., & Kim, Y.-R. (2012), "Mode I fracture characterization of bituminous paving mixtures at intermediate service temperatures". Experimental mechanics, 52(9), pp.1423-1434.
-Biligiri, K. P., Said, S., & Hakim, H. (2012), "Asphalt Mixtures Crack Propagation Assessment usingSemi-Circular Bending Tests". International Journal of Pavement Research and Technology, 5(4), 209-217.
-Chong, K., & Kuruppu, M. (1984), "New specimen for fracture toughness determination for rock and other materials". International Journal of Fracture, 26(2), R59-R62.
-Cooper Jr, S. B., Cooper III, S. B., Mohammad, L. N., & Elseifi, M. A. (2016), "Development of a Predictive Model Based on an Artificial Neural Network for the Semicircular Bend Test". Transportation Research Record: Journal of the Transportation Research Board(2576),
-Elseifi, M. A., Mohammad, L. N., Ying, H., & Cooper III, S. (2012), "Modeling and evaluation of the cracking resistance of asphalt mixtures using the semi-circular bending test at intermediate temperatures". Road Materials and Pavement Design, 13(sup1), pp.124-139.
-Li, X.-J., & Marasteanu, M. (2010), "Using semi circular bending test to evaluate low temperature fracture resistance for asphalt concrete". Experimental mechanics, 50(7), pp.867-876.
-Mansourian, A., Razmi, A., & Razavi, M. (2016). Evaluation of fracture resistance of warm mix asphalt containing jute fibers. Construction and Building Materials, 117, pp.37-46.
-Mansourkhaki, A., & Sarkar, A. (2015), Plastic deformation of asphalt mixture under waveform loading. Paper presented at the Proceedings of the Institution of Civil Engineers-Transport.
-Nsengiyumva, G., You, T., & Kim, Y.-R. (2016), "Experimental-Statistical Investigation of Testing Variables of a Semicircular Bending (SCB) Fracture Test Repeatability for Bituminous Mixtures". Journal of Testing and Evaluation, 45(5).
-Nsengiyumva, G., You, T., Kim, Y.-R., & Beran, M. (2016), "Investigation of Testing Variables of Semicircular Bending Test for Asphalt Concrete Mixtures: Experimental-Statistical Approach". Paper presented at the Transportation Research Board 95th Annual Meeting.
-Pérez-Jiménez, F., Botella, R., Moon, K.-H., & Marasteanu, M. (2013), "Effect of load application rate and temperature on the fracture energy of asphalt mixtures". Fénix and semi-circular bending tests. Construction and Building Materials, 48, pp.1067-1071.
-Pirmohammad, S., & Ayatollahi, M. (2014), Fracture resistance of asphalt concrete under different loading modes and temperature conditions. Construction and Building Materials, 53, pp.235-242.
-Saadeh, S., Hakimelahi, H., & Harvey, J. (2014), "Correlation of Semi-circular Bending and Beam Fatigue Fracture Properties of Asphalt Concrete Using Non-Contact Camera and Crosshead Movement". Paper presented at the T&DI Congress 2014: Planes, Trains, and Automobiles.
-Sarkar, A. (2016), "Combined Effect of Loading Pattern, Pulse Duration, and Stress Level on the Cyclic Creep Test of Asphalt Mixture". Journal of materials in civil engineering, 29(1), 04016185.
-Van Rooijen, R., & De Bondt, A. (2008), "Crack propagation performance evaluation of asphaltic mixes using a new procedure based on cyclic semi-circular bending tests". Pavement cracking: mechanisms, modeling, detection, testing, and case histories,
-Wang, H., Zhang, C., Li, L., You, Z., & Diab, A. (2016), "Characterization of low temperature crack resistance of crumb rubber modified asphalt mixtures using semi-circular bending tests". Journal of Testing and Evaluation, 44(2), pp.847-855.
-Wang, J., Molenaar, A., van de Ven, M., & Wu, S. (2016), "Characterization of Permanent Deformation of a Dense Asphalt Mixture". Paper presented at the Transportation Research Board 95th Annual Meeting.
-Witczak, M., Kaloush, K., Pellinen, T., El-Basyouny, M., & Von Quintus, H. (2002), nchrp report 465 simple performance test for superpave mix design. national cooperative highway research program report.