Impact of aggregate structure restoration on rutting resistance of asphalt mixtures with very high percentages of RAP
Source abstract
Abstract
Bailey method is a well-proved method to build strong aggregate structure, but it is originally devised to do so by proportioning the fractionated virgin aggregate stockpiles. Yet, the concepts of strong aggregate structure in the Bailey method stand true in any type of aggregate. This study develops a method for correcting the bad gradation of RAP by utilising Bailey’s concepts. The virgin aggregate stockpiles are added minimally into RAP to establish a firm aggregate skeleton. This changes the philosophy of aggregate blend design from the RAP following an existing good gradation to the RAP gradation correction. The effectiveness of the method was evaluated by the indirect tensile (IDT) strength and laboratoire des ponts et chaussées (LPC) wheel tracking tests. The mixtures whose gradations were rectified by this method, whether coarse dense-graded (CDG) or fine dense-graded (FDG), have significantly higher rutting resistance than 100% RAP mixture.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Infrastructure Maintenance and Monitoring · Geotechnical Engineering and Underground Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Construction Engineering Department, École de technologie supérieure (ÉTS), University of Quebec, Montreal, Canada
Civil Engineering Department, Universidad Isaac Newton, San José, Costa Rica
Funding
École de technologie supérieure
References (24)
Show source-provided references
1. AASHTO R 35. (2017). Standard practice for superpave volumetric design for asphalt mixtures. American Association of State Highway and Transportation Officials (AASHTO).
2. Al-Qadi I. L. Aurangzeb Q. Carpenter S. H. Pine W. J. & Trepanier J. (2012). Impact of high RAP contents on structural and performance properties of asphalt mixtures (Report No. ICT-12-002). Illinois Center for Transportation. https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.390.6903&rep = rep1&type = pdf
3. ASTM D5404/D5404M. (2021). Standard practice for recovery of asphalt binder from solution using the rotary evaporator. ASTM International.
4. ASTM D6307-19. (2019). . Standard test method for asphalt content of asphalt mixture by ignition method. ASTM International.
5. ASTM D6931. (2017). Standard test method for indirect tensile (IDT) strength of asphalt mixtures. ASTM International.
6. ASTM D8159-19. (2019). Standard test method for automated extraction of asphalt binder from asphalt mixtures. . ASTM International.
7. 10.3141/2294-0410.3141/2294-04 ↗
8. 10.1617/s11527-013-0127-010.1617/s11527-013-0127-0 ↗
9. 10.1080/14680629.2012.71192310.1080/14680629.2012.711923 ↗
10. 10.1016/j.conbuildmat.2017.05.19510.1016/j.conbuildmat.2017.05.195 ↗
11. 10.1016/j.conbuildmat.2020.11994110.1016/j.conbuildmat.2020.119941 ↗
12. 10.1016/j.conbuildmat.2018.05.00710.1016/j.conbuildmat.2018.05.007 ↗
13. 10.3141/2371-0210.3141/2371-02 ↗
14. 10.1016/j.conbuildmat.2022.12860710.1016/j.conbuildmat.2022.128607 ↗
15. 10.3141/1767-1810.3141/1767-18 ↗
16. LC 26-410. (2020). Résistance à la déformation des enrobés à l’essai d’orniérage. Ministère des Transports Publications du Québec Montreal QC Canada.
17. MTQ. (2006). Hot mix asphalt: LC method of mix design. Ministère des Transports Publications du Québec Montreal QC Canada.
18. Norouzi, A., Sabouri, M., & Kim, Y. R. (2014). Evaluation of the fatigue performance of asphalt mixtures with high RAP content. Journal of Tylor and Francis Group, 1069–1077.
19. 10.1061/(ASCE)MT.1943-5533.000250610.1061/(ASCE)MT.1943-5533.0002506 ↗
20. 10.3141/1789-1610.3141/1789-16 ↗
21. 10.1016/j.jclepro.2022.13048410.1016/j.jclepro.2022.130484 ↗
22. 10.1617/s11527-014-0332-510.1617/s11527-014-0332-5 ↗
23. 10.1061/(ASCE)MT.1943-5533.000276710.1061/(ASCE)MT.1943-5533.0002767 ↗
24. 10.1080/10298436.2017.133988410.1080/10298436.2017.1339884 ↗