TY - GEN
T1 - Assessing permanent deformation of reclaimed asphalt blended binders using non-linear viscoelasticity theory
AU - Vajipeyajula, Bhaskar
AU - Roja, K. Lakshmi
AU - Masad, Eyad
AU - Rajagopal, Kumbakonam R.
N1 - Publisher Copyright:
© 2021 Taylor & Francis Group, London.
PY - 2020
Y1 - 2020
N2 - In this study, the resistance of various RAP blended binders to permanent deformation was analyzed with consideration to the nonlinear response of asphalt binders. Multiple creep and recovery (MSCR) and repeated creep and recovery with multiple stress levels (RCRMS) were performed on the RAP blended binders at 64?C. For the binder used in this study, it was found that the linear viscoelasticity framework is sufficient to capture the MSCR results. However, the use of a nonlinear viscoelastic model was necessary to predict the response of the binders when subjected to the RCRMS protocol. The results highlight the advantages of using a nonlinear viscoelasticity framework instead of relying only on the non-recoverable creep compliance (Jnr) to evaluate the rutting resistance of asphalt binders.
AB - In this study, the resistance of various RAP blended binders to permanent deformation was analyzed with consideration to the nonlinear response of asphalt binders. Multiple creep and recovery (MSCR) and repeated creep and recovery with multiple stress levels (RCRMS) were performed on the RAP blended binders at 64?C. For the binder used in this study, it was found that the linear viscoelasticity framework is sufficient to capture the MSCR results. However, the use of a nonlinear viscoelastic model was necessary to predict the response of the binders when subjected to the RCRMS protocol. The results highlight the advantages of using a nonlinear viscoelasticity framework instead of relying only on the non-recoverable creep compliance (Jnr) to evaluate the rutting resistance of asphalt binders.
UR - https://www.scopus.com/pages/publications/85117397081
M3 - Conference contribution
AN - SCOPUS:85117397081
T3 - Advances in Materials and Pavement Performance Prediction II - Contributions to the 2nd International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2020
SP - 372
EP - 376
BT - Advances in Materials and Pavement Performance Prediction II - Contributions to the 2nd International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2020
A2 - Kumar, A.
A2 - Papagiannakis, A.T.
A2 - Bhasin, A.
A2 - Little, D.
PB - CRC Press/Balkema
T2 - 2nd International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2020
Y2 - 27 May 2020 through 29 May 2020
ER -