A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Analysis of a New Approach for Characterizing the Performance of Asphalt Binders Through the Multiple Stress Creep and Recovery Test
This research provides an efficient procedure for selecting and ranking binders to prevent rutting on asphalt pavements. Widely used to analyze asphalt binder permanent deformation, the Multiple Stress and Recovery (MSCR) test provides the non-recoverable compliance (Jnr). To evaluate the relation between Jnr from 6 different binders with the behavior of corresponding asphalt mixtures, this paper analyzes the Flow Number (FN) of 8 distinct mixtures. The MSCR standard protocol was compared to a new protocol (based on 30 loading cycles of 3.2 kPa) to verify Jnr and to obtain the non-recoverable strain rate (εnr). Different testing temperatures are considered. Correlations between Jnr from both MSCR test methodologies indicate a similar binder classification. The uniformity of the Jnr for the new test protocol with 30 constant loading cycles provides a more consistent average. For mixtures using the same binder with different aggregates and different grading curves, Jnr was a proper parameter to identify the potential for permanent deformation. However, an adequate choice of aggregate distribution enhances mixture mechanical behavior, which was evidenced when analyzing mixtures with distinct gradation but with the same binder.
Analysis of a New Approach for Characterizing the Performance of Asphalt Binders Through the Multiple Stress Creep and Recovery Test
This research provides an efficient procedure for selecting and ranking binders to prevent rutting on asphalt pavements. Widely used to analyze asphalt binder permanent deformation, the Multiple Stress and Recovery (MSCR) test provides the non-recoverable compliance (Jnr). To evaluate the relation between Jnr from 6 different binders with the behavior of corresponding asphalt mixtures, this paper analyzes the Flow Number (FN) of 8 distinct mixtures. The MSCR standard protocol was compared to a new protocol (based on 30 loading cycles of 3.2 kPa) to verify Jnr and to obtain the non-recoverable strain rate (εnr). Different testing temperatures are considered. Correlations between Jnr from both MSCR test methodologies indicate a similar binder classification. The uniformity of the Jnr for the new test protocol with 30 constant loading cycles provides a more consistent average. For mixtures using the same binder with different aggregates and different grading curves, Jnr was a proper parameter to identify the potential for permanent deformation. However, an adequate choice of aggregate distribution enhances mixture mechanical behavior, which was evidenced when analyzing mixtures with distinct gradation but with the same binder.
Analysis of a New Approach for Characterizing the Performance of Asphalt Binders Through the Multiple Stress Creep and Recovery Test
RILEM Bookseries
Di Benedetto, Hervé (editor) / Baaj, Hassan (editor) / Chailleux, Emmanuel (editor) / Tebaldi, Gabriele (editor) / Sauzéat, Cédric (editor) / Mangiafico, Salvatore (editor) / Vale, Aline (author) / Bastos, Juceline (author) / Soares, Jorge B. (author)
RILEM International Symposium on Bituminous Materials ; 2020 ; Lyon, France
Proceedings of the RILEM International Symposium on Bituminous Materials ; Chapter: 30 ; 239-245
RILEM Bookseries ; 27
2021-09-26
7 pages
Article/Chapter (Book)
Electronic Resource
English
| Taylor & Francis Verlag | 2019
Characterizing SBS modified asphalt with sulfur using multiple stress creep recovery test
| Online Contents | 2015