Leon, L., Caro, S., & Sanchez, X. (2025). Impact of water on asphalt mortars with aggregates of different mineralogy. In L. Eberhardsteiner, B. Hofko, & R. Blab (Eds.), Advances in Materials and Pavement Performance Prediction IV : Contributions to the 4th International Conference on Advances in Materials and Pavement Performance Prediction (AM3P 2025), 7-9 May 2025, Vienna, Austria (pp. 100–103). TU Wien, E230-03 Road Engineering. https://doi.org/10.34726/10591
Advances in Materials and Pavement Performance Prediction IV : Contributions to the 4th International Conference on Advances in Materials and Pavement Performance Prediction (AM3P 2025), 7-9 May 2025, Vienna, Austria
This work examines the influence of aggregate mineralogy and water exposure on the rheological behaviour of asphalt mortars. Three different mortars, fabricated with a single asphalt binder and three types of aggregates (quartzite, granodiorite, and serpentinite) with the same gradation, were tested after immersion in water for 0, 10, 60, and 160 days. Results show that aggregate mineralogy affects performance under moisture. Quartzite mortars hardened steadily due to binder oxidation and the inert nature of the aggregates. Granodiorite mortars initially stiffened initially but softened over time. Serpentinite mortars showed marked stiffness reduc- tions after 60 days, indicating water-induced damage. In summary, aggregate mineralogy plays a critical role in the early and long-term moisture resistance of asphalt mortars.
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Research Areas:
Surfaces and Interfaces: 50% Structure-Property Relationsship: 50%
CC BY 4.0
