TY - JOUR
T1 - RILEM TC 252-CMB report : rheological modeling of asphalt binder under different short and long-term aging temperatures
AU - Wang, Di
AU - Cannone Falchetto, Augusto
AU - Poulikakos, Lily
AU - Hofko, Bernhard
AU - Porot, Laurent
N1 - Funding Information:
Acknowledgements The RILEM Technical Committee on Chemo-Mechanical Characterization of Bituminous Materials (CMB) 252 and the asphalt binder suppliers Nynas and TU Vienna are gratefully acknowledged. The authors would also like to thank the China Scholarship Council, National Natural Science Foundation of China (51508064, 51408083) for the financial support to the graduate studies of the first author. The experimental support provided by the Braunschweig Pavement Engineering Centre (ISBS) at the Technische Universität Braunschweig, Germany, is also acknowledged. Augusto Cannone Falchetto would like to acknowledged the Japan Society for Promotion of Science—JSPS—international research in Japan program.
Publisher Copyright:
© 2019, RILEM.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - This paper evaluates whether the temperature reduction production during Warm-Mix Asphalt (WMA) leads to a beneficial effect on short- and long-term aging properties of asphalt binder. For this purpose, two 70/100 penetration grade virgin asphalt binders were used. First, the material was short term aged at three different temperature, 123 °C, 143 °C, and 163 °C, and then, long term aged. Shear complex modulus was then measured with the Dynamic Shear Rheometer and the data used to generate master curves and fit the 2 Spring 2 Parabolic 1 Dashpot model. Glover–Rowe parameter and crossover-temperature were next determined to further investigate the effect of aging temperature on the properties of the material. Significant differences were observed between 163 and 123 °C for both short- and long-term aging conditions. However, a remarkable difference between 143 and 123 °C could be detected only for the short-term aged binder. Finally, the statistical analysis confirmed the experimentally observed trend. Based on the results and analysis presented in this paper, it can be hypothesized that a reduction in the temperature of short-term aging, which is commonly experienced during WMA production, may result in an overall substantially milder aging.
AB - This paper evaluates whether the temperature reduction production during Warm-Mix Asphalt (WMA) leads to a beneficial effect on short- and long-term aging properties of asphalt binder. For this purpose, two 70/100 penetration grade virgin asphalt binders were used. First, the material was short term aged at three different temperature, 123 °C, 143 °C, and 163 °C, and then, long term aged. Shear complex modulus was then measured with the Dynamic Shear Rheometer and the data used to generate master curves and fit the 2 Spring 2 Parabolic 1 Dashpot model. Glover–Rowe parameter and crossover-temperature were next determined to further investigate the effect of aging temperature on the properties of the material. Significant differences were observed between 163 and 123 °C for both short- and long-term aging conditions. However, a remarkable difference between 143 and 123 °C could be detected only for the short-term aged binder. Finally, the statistical analysis confirmed the experimentally observed trend. Based on the results and analysis presented in this paper, it can be hypothesized that a reduction in the temperature of short-term aging, which is commonly experienced during WMA production, may result in an overall substantially milder aging.
KW - 2S2P1D model
KW - Aging indicator
KW - Aging temperature
KW - Asphalt binder
KW - Dynamic-Shear-Rheometer (DSR)
KW - Statistical analysis
UR - http://www.scopus.com/inward/record.url?scp=85068054747&partnerID=8YFLogxK
U2 - 10.1617/s11527-019-1371-8
DO - 10.1617/s11527-019-1371-8
M3 - Article
AN - SCOPUS:85068054747
VL - 52
JO - Materials and structures
JF - Materials and structures
SN - 1359-5997
IS - 4
M1 - 73
ER -