Abstract This study reveals new findings on pavement smoothness improvement characteristics of HMA overlay on very rough concrete base slab surface that has not been previously investigated. International Roughness Index (IRI) measurements were conducted in an urban open-cut tunnel expressway. Overlay design is two HMA lifts of 4 cm-thick each. For concrete slab surface with 6.0 to 9.5 m/ km of IRI, less than 1.6 m/km of post-overlay IRI was achieved in all 30 sections with 100 m interval, and less than 1.0 m/km IRI was obtained in about 53% sections. For about 30% of the sections, 2.0 m/km IRI was accomplished even in the 1st lift overlay. In wide range of IRI including up to 9 m/km, it was concluded that smoother pre-overlay surface produces smoother post-overlay surface. Post-overlay IRI is about 20% of pre-overlay IRI, but with large variation. Rather, the relationship between ΔIRI and preoverlay IRI has higher statistical significance. By validation process, it was concluded that smoothness prediction with respect to ΔIRI is more reliable than IRI value itself. This characteristic was found to be more evident when roughness is evaluated with respect to detailed wavelengths.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Smoothness improvement by HMA overlay on very rough surface in urban tunnel expressway


    Beteiligte:
    Bae, Abraham (Autor:in) / Lee, David (Autor:in) / Tan, Jun Yew (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    04.11.2016


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Smoothness improvement by HMA overlay on very rough surface in urban tunnel expressway

    Bae, Abraham / Lee, David / Tan, Jun Yew | Online Contents | 2017


    Urban Expressway Traffic State Estimation Based on FCM-Rough Set

    Zhang, X. / Zhang, K. / Liu, H. et al. | British Library Conference Proceedings | 2010


    Urban Expressway Traffic State Estimation Based on FCM-Rough Set

    Zhang, Xiaoliang / Zhang, Ke / Liu, Hao et al. | ASCE | 2010


    Expressway tunnel inspection device

    HAN CHENG | Europäisches Patentamt | 2023

    Freier Zugriff

    Expressway tunnel safety guiding device

    LI PENG / TIAN FENG / BAO HUA | Europäisches Patentamt | 2024

    Freier Zugriff