چکیده مقاله
The addition of crumb rubber in both wet and dry forms during the production of asphalt mixtures is a common practice aimed at managing waste tires and enhancing the performance characteristics of asphalt mixtures The effect of crumb rubber on the performance properties of asphalt mixtures is directly related to the viscoelastic properties of the corresponding asphalt mastic, which consists of bitumen, crumb rubber, and filler In this study, the fatigue performance of asphalt mixtures containing crumb rubber was evaluated using the indirect tensile test IDT at different stress levels Additionally, the properties of the asphalt mastic, composed of bitumen, crumb rubber, and a corresponding volumetric proportion of filler, were examined using a dynamic shear rheometer DSR test at 10, 22, and 34°C to establish the relationship between mastic properties and asphalt mixture fatigue performance The fatigue life of the modified mixtures, compared with the control mixtures, increased by factors of 1 28, 5 88, and 11 45 at temperatures of 10, 22, and 34 °C, respectively Therefore, the viscoelastic properties of the corresponding asphalt binder and its microstructure can be used to predict the fatigue behavior of asphalt mixtures
کلیدواژهها
نویسندگان
Mahdi Rahbar Shirbazo
M Sc Student, Department of Civil & Environmental Engineering, Amirkabir University of Technology Tehran Polytechnic , Tehran, Iran
Mohammad Jafari
Assistant Professor, Department of Civil Engineering, Babol Noshirvani University of Technology, Babol, Iran
پوریا حاجی کریمی
Assistant Professor, Department of Civil & Environmental Engineering, Amirkabir University of Technology Tehran Polytechnic , Tehran, Iran
فریدون مقدس نژاد
Professor, Department of Civil & Environmental Engineering, Amirkabir University of Technology Tehran Polytechnic , Tehran, Iran
شیوه ارجاع
Rahbar Shirbazo, Mahdi and Jafari, Mohammad and Hajikarimi, Pouria and Moghadas Nejad, Fereidoon,1404,Effect of Crumb Rubber on Fatigue Behavior of Asphalt Mixture Based on Microstructure Viscoelastic Characteristic,14th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات چهاردهمین کنگره بین المللی مهندسی عمران29 مهر 1404 · تهران