Abstract
Although known for a long time, hydrated lime (HL) still attracts a strong technical interest as an asphalt additive. This presentation describes recent field results obtained in France in two different contexts: • First, we describe the 7-years experience obtained on 20 sections with and without HL in the mountainous Vosges department. This eastern part of France is characterized by cold winters and significant elevation, making it a pretty challenging environment for asphalt mixtures. The types of mixtures were essentially semi-dense Asphalt Concrete (French BBSG). The results after 7-years of monitoring are described. • Second, we describe the 5-years experience obtained on 5 sections with and without HL in the oceanic climate of Highway A84 in Normandy. The types of mixtures were also semi-dense Asphalt Concrete (French BBSG) and a thorough testing program was established from the beginning. The results after 5-years of monitoring are described. As a result, the results allow quantifying the impact of HL in terms of durability improvement.
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Lesueur, D. et al. (2022). Improving the Durability of Asphalt Mixtures with Hydrated Lime: Field Results from Recent French Sections. In: Di Benedetto, H., Baaj, H., Chailleux, E., Tebaldi, G., Sauzéat, C., Mangiafico, S. (eds) Proceedings of the RILEM International Symposium on Bituminous Materials. ISBM 2020. RILEM Bookseries, vol 27. Springer, Cham. https://doi.org/10.1007/978-3-030-46455-4_133
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DOI: https://doi.org/10.1007/978-3-030-46455-4_133
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