Evaluation of Rutting Resistance of Asphalt Binder and Hot Mix Asphalt and Warm Mix Asphalt Containing Nano Clay and Asphaltene-B

Document Type : Original Article

Authors
Mostafa Vamegh 1
Daryoosh Daryaee 2
Hamed Rooholamini 3
1 Assistant Professor, Department of Civil and Environmental Engineering, Shiraz University of Technology, Shiraz, Iran‌. .
2 Assistant Professor, Department of Civil Engineering, Faculty of Civil Engineering and Architecture, Malayer University, Malayer, Iran.
3 Assistant Professor, Department of Civil Engineering, Hormozgan University, Hormozgan, Iran.
10.22034/road.2025.459730.2288
Abstract
In addition to reducing the service life of asphalt pavements, failures in asphalt pavements lead to a decrease in the safety and dissatisfaction of users, as well as the high consumption of energy and the emission of pollution in the construction of asphalt pavements have led researchers to develop the production of asphalt mixtures. In this research, in order to overcome the problems of ordinary pure bitumen and to improve its performance, and as a result to improve the performance and resistance to failures, hot asphalt mixtures (HMA) and warm asphalt mixtures (WMA) from Cloisite 15A nanoclay and also to produce An organic additive called Asphaltan-B has been used in hot asphalt mixture. Performance tests of bitumen was implemented by dynamic shear rheometer (DSR) at 64 degrees, and performance tests of asphalt mixtures such as wheel Track and dynamic creep tests was performed at 50 degrees Celsius on asphalt mixture samples containing 0, 2, 4 and 6% nanoclay. The results of the dynamic shear rheometer test showed that the addition of nanoclay in pure bitumen increases the amount of rutting factor (G*/Sinδ) and as a result increases the rutting resistance of bitumen. Also, the results showed that with the addition of nanoclay to bitumen, the resistance to rutting in HMA and WMA asphalt mixtures increases or the rut depth decreases. The results show that there is a good statistical relationship between the bitumen results and the asphalt mixture tests.
Keywords
Warm Mix Asphalt
Rutting
Nano Clay
Asphaltene B
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