TY - GEN
T1 - Multi-Scale Evaluation on the Interaction between Asphalt and Crumb Rubber
AU - Xie, Zhaoxing
AU - Shen, Junan
N1 - Publisher Copyright:
© ASCE.
PY - 2015
Y1 - 2015
N2 - Crumb rubber modifier (CRM), made from scrap tires, has been introduced into the production of different types of hot mix asphalt (HMA) in either wet or dry process. There has been few research about the interaction between asphalt and the crumb rubbers added in the dry process. In the study, dynamic shear rheometer (DSR) and atomic force microscopy (AFM) were used to explore the interaction between the asphalt binder and CRM in dry and wet process. The results indicated: (1) rubberized binder in dry process have similar modulus, phase angle and complex viscosity with wet process, regardless of unaging or short-term aging, (2) rubberized asphalt in dry process has lower roughness of topographical image than wet process before short-term aging. However, the short-term aging may decrease the difference of the microstructures of the binders in two processes, i.e., wet and dry processes.
AB - Crumb rubber modifier (CRM), made from scrap tires, has been introduced into the production of different types of hot mix asphalt (HMA) in either wet or dry process. There has been few research about the interaction between asphalt and the crumb rubbers added in the dry process. In the study, dynamic shear rheometer (DSR) and atomic force microscopy (AFM) were used to explore the interaction between the asphalt binder and CRM in dry and wet process. The results indicated: (1) rubberized binder in dry process have similar modulus, phase angle and complex viscosity with wet process, regardless of unaging or short-term aging, (2) rubberized asphalt in dry process has lower roughness of topographical image than wet process before short-term aging. However, the short-term aging may decrease the difference of the microstructures of the binders in two processes, i.e., wet and dry processes.
UR - http://www.scopus.com/inward/record.url?scp=84947913069&partnerID=8YFLogxK
U2 - 10.1061/9780784414255.002
DO - 10.1061/9780784414255.002
M3 - Conference article
AN - SCOPUS:84947913069
T3 - New Frontiers in Road and Airport Engineering - Selected Papers from the 2015 International Symposium on Frontiers of Road and Airport Engineering, IFRAE 2015
SP - 10
EP - 16
BT - New Frontiers in Road and Airport Engineering - Selected Papers from the 2015 International Symposium on Frontiers of Road and Airport Engineering, IFRAE 2015
A2 - Sun, Lijun
A2 - Ling, Jianming
A2 - Zhao, Hongduo
A2 - Xiao, Feipeng
A2 - Huang, Baoshan
PB - American Society of Civil Engineers (ASCE)
T2 - 2015 International Symposium on Frontiers of Road and Airport Engineering, IFRAE 2015
Y2 - 26 October 2015 through 28 October 2015
ER -