Rheological and Morphological Characterization of Modified Bitumen with Cup Lump Rubber

作     者：Mohammed Albuaymi Suleiman Abdulrahman Fayez Alanazi Hani Alanazi Musa Adamu 

作者机构：Department of Civil and Environmental EngineeringCollege of EngineeringMajmaah UniversityAl-Majmaah11952Saudi Arabia Department of Civil EngineeringKebbi State University of Science and TechnologyAlieroKebbiNigeria School of Civil EngineeringUniversiti Teknologi MalaysiaJohor Bahru81310Malaysia Department of Civil EngineeringCollege of EngineeringJouf UniversitySakaka72388Saudi Arabia Engineering Management DepartmentCollege of EngineeringPrince Sultan UniversityRiyadh11586Saudi Arabia Department of Civil EngineeringBayero UniversityKanoPMB 3011Nigeria 

出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)

年 卷 期：2023年第11卷第5期

页      面：2433-2451页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：The authors received funding for this research work through the Project No.(IFP-2020-89)from the Deputyship for Research&Innovation Ministry of Education in Saudi Arabia 

主　　题：Cup lump rubber polymer modified bitumen hydrophobicity natural rubber 

摘      要：Pure bitumen is not suitable for heavy traffic loads;hence modifiers are used to improve the bitumen ***,cup lump rubber(CLR)has become a preferred modifier due to its outstanding performance and less ***,little is known about the interactions between CLR and ***,this study investigates the behavior of bitumen with *** percentages of CLR(2.5%,5.0%,7.5%,and 10.0%by weight of bitumen)were used to modify conventional 60/70 penetration grade *** modified bitumen was evaluated through different laboratory testing such as dynamic shear rheometer,rotational viscosity,softening point,bending beam rheometer,ductility,and elastic *** testing results show that the addition of CLR increased the bitumen’s rutting resistance by 3 PG grades at high *** low pavement temperatures,the cup lump rubber modified bitumen(CMB)can withstand up to−34℃.Fourier Transform Infrared(FTIR)analysis shows that the Aromaticity index at 1600 cm^(−1) rose as the CLR percentage increased,indicating the formation of a binder with a compact *** is expected to improve the elasticity of bitumen throughπ-π*** Force Microscopy(AFM)results showed the Catana phase increased in size and quantity at 5.0%and 7.5%CLR *** contact angle measurement revealed that the binders are hydrophobic and tend to repel the dropped water on the bitumen surface.