Effect of Thermal Cycles on Creep Behavior of Bituminous Binder in Hot Regions  

作　　者：Bachir Glaoui Mahdjoub Bendjima M'hamed Merbouh Martin Van de Ven 

机构地区：[1]Laboratoire de la Fiabilité des Matériaux et Structures en Régions Sahariennes(FIMAS),Université de Béchar B.P.417,Béchar,08000,Algérie [2]Laboratory of Road and Railway Engineering,TU Delft,P.O.Box 50482600 GA Delft,The Netherlands

出　　处：《Journal of Civil Engineering and Architecture》2024年第7期334-339,共6页土木工程与建筑（英文版）

摘　　要：This research is devoted to the study of creep behavior of asphalt binder in hot region.This binder was subjected to thermal cycles due to the variation of temperature from day to night.These cycles produce a heating-cooling phenomenon.To evaluate the effect of climate change in laboratory,the DSR(dynamic shear rheometer)was used,and the results found with the nine samples were compared.These thermal cycles led to aging and therefore hardening of the binder.Thus,a rheological model was proposed that can represent the curves obtained experimentally,where it is able to describe the creep behavior of binders tested.A new model is proposed that correlates well with the experimental curves,which is called A+2 K.

关 键 词：BITUMEN temperature heating/cooling DSR BBR model 

分 类 号：TU5[建筑科学—建筑技术科学]