An Experimental Study of Adhesion Between Aggregate Minerals and Asphalt Binders Using Particle Probe Scanning Force Microscopy
Accurate determination of adhesion between asphalt binders and aggregates is essential to the performance of pavement structures. In this study, particle probe scanning force microscopy was used to measure the adhesion between mineral microspheres representing the primary aggregate constituents and various control and modified binders. Average unit surface energies were applied to distinguish adhesion between various aggregate-binder pairs. Results showed that the alumina-binder pair exhibited higher adhesion than those of silica-binder and calcium carbonate-binder pairs. Microstructure variations were also detected for different modified binders that could lead to the adhesion differences.
KeywordsAdhesion Aggregates Asphalt binder Modifier Pavement Particle probe scanning force microscopy
This study was supported by the College of Engineering and Mathematical Sciences at the University of Vermont (UVM). The authors would like to sincerely thank the Agency of Vermont Transportation for their support. We sincerely thank ICL Performance Company for providing PPA specimens, Bitumar Company for providing the SBS specimens, and Ultrapave Company for providing the SBR specimens. Appreciation is also extended to the UVM microscopy imaging center for the assistance of image characterization.
- 1.W.M. Kelly, Mineral industry of the state of New York (2011), http://www.nysm.nysed.gov/staffpubs/docs/20367.pdf
- 2.American Society for Testing and Materials, Standard test method for separation of asphalt into four fractions, ASTM D4124 (West Conshohocken, PA, 2009)Google Scholar
- 3.A. Hanz, H. Bahia, K. Kanitpong, H.F. Wen, Test method to determine aggregate/asphalt adhesion properties and potential moisture damage SPR 0092-05-12, (Madison, WI, 2007)Google Scholar
- 9.J.N. Israelachvili, Intermolecular and surface forces: revised, 3rd edn. (Academic press, Oxford, UK, 2011)Google Scholar
- 11.A. Kinloch, Adhesion and adhesives: science and technology (Chamman and Hall, NY, 2012)Google Scholar
- 12.J. Drelich, K.L. Mittal, Atomic force microscopy in adhesion studies (CRC Press, Boca Raton, FL, 2005)Google Scholar
- 16.T. Tan, J. Meng, N. Rahbar, H. Li, G. Papandreou, C.A. Maryanoff, W.O. Soboyejo, Effects of silane on the interfacial fracture of a parylene film over a stainless steel substrate, Mater. Sci. Eng. C 32(3), 550–557Google Scholar
- 20.Y. Li, J. Yang, T. Tan, Measuring adhesion between modified asphalt binders and aggregate minerals: use of particle probe scanning force microscopes, Transp. Res. Rec. J. Transp. Res. Board, 117–123 (2016)Google Scholar
- 22.T. Tan, Y. Li, J. Yang, Quantification of aggregate-binder adhesion in asphalt mixtures using particle probe scanning force microscopes, in Proceedings of the International MultiConference of Engineers and Computer Scientists 2017, 15–17 March, 2017, Hong Kong, pp. 1063–1067Google Scholar
- 26.C.T. Joseph, Practice of thin layer chromatography (Wiley, NY, 1992)Google Scholar