TY - JOUR
T1 - Nonlinear rheological performance characterization of styrene-butadiene-styrene and crumb rubber composite modified bitumen using large amplitude oscillatory shear tests
AU - Wu, You
AU - Huang, Peng
AU - Yu, Yunhong
AU - Shi, Chenguang
AU - Chen, Huimin
AU - Wang, Houzhi
AU - Yang, Jun
AU - Leng, Zhen
AU - Huang, Wei
N1 - Funding Information:
The authors acknowledge the financial support of the National Natural Science Foundation of China (No. 52078130 , No. 51778140 ), Technology Research and Development Program of China State Railway Group Co ., Ltd (No. P2019G030 ), Major Technology Demonstration of Epoxy Asphalt in Pavement as a Green Highly-Efficient Carbon Mitigation Technology of Jiangsu , China ( BE2022615 ).
Funding Information:
The authors acknowledge the financial support of the National Natural Science Foundation of China (No. 52078130, No. 51778140), Technology Research and Development Program of China State Railway Group Co. Ltd (No. P2019G030), Major Technology Demonstration of Epoxy Asphalt in Pavement as a Green Highly-Efficient Carbon Mitigation Technology of Jiangsu, China (BE2022615).
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2023/1/20
Y1 - 2023/1/20
N2 - The crumb rubber (CR) recycled from waste tires can improve the mechanical properties of bitumen effectively. For the widely used modified bitumen today, it could work in nonlinear regime in many occasions. This study focuses on the nonlinear properties of styrene-butadiene-styrene (SBS) and CR composite modified bitumen (CMB) by analyzing the results of stress-controlled large amplitude oscillatory shear (LAOS) tests. The results show that the nonlinearity of SBS/CR CMB was significant under low load frequency, high temperature and high stress level. Lissajous curves at these conditions are distorted obviously due to the presence of higher-order harmonics. By analyzing the geometry parameters of Lissajous curves, it can be concluded that the incorporation of CR has a positive influence on the nonlinear properties of bitumen, which effectively improve the stress bearing capacity of bitumen. However, the high-order harmonic analysis indicates that improving the CR content simply does not always improve the performance of bitumen. Besides, the nonlinearity of SBS/CR CMB with lower CR content is similar to that of SBS modified bitumen through the value of I3/I1 and intrinsic nonlinear parameter Q, thus there are two critical CR contents for the prospect of modifying the nonlinearity of bitumen.
AB - The crumb rubber (CR) recycled from waste tires can improve the mechanical properties of bitumen effectively. For the widely used modified bitumen today, it could work in nonlinear regime in many occasions. This study focuses on the nonlinear properties of styrene-butadiene-styrene (SBS) and CR composite modified bitumen (CMB) by analyzing the results of stress-controlled large amplitude oscillatory shear (LAOS) tests. The results show that the nonlinearity of SBS/CR CMB was significant under low load frequency, high temperature and high stress level. Lissajous curves at these conditions are distorted obviously due to the presence of higher-order harmonics. By analyzing the geometry parameters of Lissajous curves, it can be concluded that the incorporation of CR has a positive influence on the nonlinear properties of bitumen, which effectively improve the stress bearing capacity of bitumen. However, the high-order harmonic analysis indicates that improving the CR content simply does not always improve the performance of bitumen. Besides, the nonlinearity of SBS/CR CMB with lower CR content is similar to that of SBS modified bitumen through the value of I3/I1 and intrinsic nonlinear parameter Q, thus there are two critical CR contents for the prospect of modifying the nonlinearity of bitumen.
KW - Fourier transform rheology
KW - Lissajous curve
KW - Nonlinear viscoelastic property
KW - SBS/CR CMB
KW - Stress-controlled mode LAOS test
KW - Stress/strain decomposition
UR - http://www.scopus.com/inward/record.url?scp=85145258211&partnerID=8YFLogxK
U2 - 10.1016/j.jclepro.2022.135712
DO - 10.1016/j.jclepro.2022.135712
M3 - Journal article
AN - SCOPUS:85145258211
SN - 0959-6526
VL - 385
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
M1 - 135712
ER -