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Communication Dans Un Congrès Année : 2020

Improving the durability of asphalt mixtures with hydrated lime: Field results from recent French sections

Didier Lesueur
Patrick Pibis
  • Fonction : Auteur
Samyr El Bedoui
  • Fonction : Auteur
Hervé Ruat
  • Fonction : Auteur

Résumé

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 dif-ferent contexts: - First, we describe the 7-yrs 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-yrs of monitoring are described. - Second, we describe the 5-yrs 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-yrs of monitoring are described. As a result, the results allow quantifying the impact of HL in terms of dura-bility improvement.
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Dates et versions

hal-03165056 , version 1 (10-03-2021)

Identifiants

  • HAL Id : hal-03165056 , version 1

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Didier Lesueur, Pierre Metais, Patrick Pibis, Samyr El Bedoui, Hervé Ruat, et al.. Improving the durability of asphalt mixtures with hydrated lime: Field results from recent French sections. RILEM International Symposium on Bituminous Materials, ISBM Lyon 2020, Dec 2020, LYON, France. 6 p. ⟨hal-03165056⟩
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