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    Ultimate design of unbound granular base courses for flexible pavements

    Access Status
    Fulltext not available
    Authors
    Jitsangiam, Peerapong
    Nikraz, Hamid
    Siripun, Komsun
    Date
    2011
    Type
    Conference Paper
    
    Metadata
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    Citation
    Siripun, Komsun and Jitsangiam, Peerapong and Nikraz, Hamid. 2011. Ultimate design of unbound granular base courses for flexible pavements, in Dar-Hao Chen, Jia-Ruey Chang, Musharraf Zaman, Chaoyang Zhao, Zhanyong Yao (ed), 2011 GeoHunan International Conference, Jun 9-11 2011, pp. 158-165. Hunan, China: American Society of Civil Engineers (ASCE).
    Source Title
    Proceedings of the 2011 GeoHunan International Conference
    Source Conference
    2011 GeoHunan International Conference
    ISBN
    978-078447629-1
    School
    Department of Civil Engineering
    URI
    http://hdl.handle.net/20.500.11937/33093
    Collection
    • Curtin Research Publications
    Abstract

    This study aims to introduce alternative design procedures for a flexible pavement base course by utilizing ultimate strength criteria with the sophisticated laboratory results of base course materials. Based on the design protocol, only the design criteria of the horizontal tension and the vertical compression occur at the bottom of the asphalt layer and at the top of the subgrade, respectively are employed. The real behavior of a base course under traffic loads has been rarely accounted into the pavement design protocol. Nowadays, traffic is growing in terms of magnitude and frequency far beyond the past causing premature deterioration in base course layers leading to major damage in pavements. The study presents theoretically a more suitable approach of stress and strain distributions in a flexible pavement using the finite element method. The effects of uniform design pressure and material attributes generated when a vehicle travels, namely the stress and strain contributions between tires and pavement layers, were investigated. Moreover, new design criteria for an unbound granular layer were defined as the ultimate strength design and the bearing capacity factor resulting from the application of the shallow foundation bearing capacity concept within the California Bearing Ratio (CBR) results.

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    • The Unbound Granular Base Course Design with Ultimate Strength Concept
      Siripun, Komsun; Jitsangiam, Peerapong; Nikraz, Hamid (2011)
      This study aims to introduce alternative design procedures for a flexible pavement base course by utilizing the ultimate strength criteria with sophisticated laboratory results of base course materials. Current pavement ...
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      Siripun, K.; Jitsangiam, Peerapong; Nikraz, H. (2011)
      This study aims to introduce alternative design procedures for a flexible pavement base course by utilizing the ultimate strength criteria with sophisticated laboratory results of base course materials. Current pavement ...
    • Characterisations of base course materials in Western Australia pavements
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      Western Australia (WA) has a road network of approximately 177,700 km, including a 17,800 km stage highway system (Main Roads Western Australia 2009). This infrastructure supports a population of only about two million, ...
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