Abstract A comprehensive experimental study has been conducted primarily to characterize the effect of hydrated lime on a dynamic modulus of Hot Mix Asphalt (HMA). In this paper, five Superpave HMAs typically used in the State of North Carolina were modified with hydrated lime and evaluated with a series of uniaxial compressive complex modulus tests. And a new design method was proposed for lime modified HMAs based on their volumetric optimums. For a 9.5 mm surface mixture, three levels of lime addition methods were tested and their impacts on a dynamic modulus and phase angle were statistically analyzed. Finally, a resistance of lime modified HMA to moisture damage was demonstrated by comparing with unmodified HMA. Findings suggested that the inclusion of hydrated lime should make HMAs stiff especially at high frequencies and lower temperatures. The reduction of dynamic modulus due to moisture was smaller in lime modified HMAs than in un-modified HMA.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effect of hydrated lime on dynamic modulus of asphalt-aggregate mixtures in the state of North Carolina


    Beteiligte:
    Lee, Sangyum (Autor:in) / Seo, Youngguk (Autor:in) / Kim, Y. Richard (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2010-10-28


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Mechanistic Evaluation of Hydrated Lime in Hot-Mix Asphalt Mixtures

    Mohammad, Louay N. / Abadie, Chris / Gokmen, Rana et al. | Transportation Research Record | 2000




    Mechanistic Properties of Hot-Mix Asphalt Mixtures Containing Hydrated Lime

    Mohammad, Louay N. / Saadeh, Shadi / Kabir, Md et al. | Transportation Research Record | 2008


    Mechanistic Evaluation of Hydrated Lime in Hot-Mix Asphalt Mixtures

    Mohammad, L. N. / Abadie, C. / Gokmen, R. et al. | British Library Conference Proceedings | 2000