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    Characterisation, Analysis and Design of Hydrated Cement Treated Crushed Rock Base as a Road Base Material in Western Australia

    189574_73182_71895.pdf (157.3Kb)
    Access Status
    Open access
    Authors
    Jitsangiam, Peerapong
    Nikraz, Hamid
    Siripun, Komsun
    Chummuneerat, Suphat
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Jitsangiam, Peerapong and Nikraz, Hamid and Siripun, Komsun and Chummuneerat, Suphat. 2012. Characterisation, Analysis and Design of Hydrated Cement Treated Crushed Rock Base as a Road Base Material in Western Australia. Journal of Civil Engineering and Architecture. 6 (5): pp. 586-593.
    Source Title
    Journal of Civil Engineering and Architecture
    ISSN
    1934-7359
    Remarks

    Copyright © 2012 David Publishing

    URI
    http://hdl.handle.net/20.500.11937/45823
    Collection
    • Curtin Research Publications
    Abstract

    Hydrated Cement Treated Crushed Rock Base (HCTCRB) is widely used as a base course in Western Australian pavements. HCTCRB has been designed and used as a basis for empirical approaches and in empirical practices. These methods are not all-encompassing enough to adequately explain the behaviour of HCTCRB in the field. Recent developments in mechanistic approaches have proven more reliable in the design and analysis of pavement, making it possible to more effectively document the characteristics of HCTCRB. The aim of this study was to carry out laboratory testing to assess the mechanical characteristics of HCTCRB. Conventional triaxial tests and repeated load triaxial tests (RLT tests) were performed. Factors affecting the performance of HCTCRB, namely hydration periods and the amount of added water were also investigated. It was found that the shear strength parameters of HCTCRB were 177 kPa for cohesion (c) and 42° for the internal friction angle (f). The hydration period, and the water added in this investigation affected the performance of HCTCRB. However, the related trends associated with such factors could not be assessed. All HCTCRB samples showed stress-dependency behaviour. Based on the stress stages of this experiment, the resilient modulus values of HCTCRB ranged from 300 MPa to 1100 MPa. CIRCLY, a computer program based on the multi-layer elastic theory was used in the mechanistic approach to pavement design and analysis, to determine the performance of a typical pavement model using HCTCRB as a base course layer. The mechanistic pavement design parameters for HCTCRB as a base course material were then introduced. The analysis suggests that the suitable depth for HCTCRB as a base layer for WA roads is at least 185 mm for the design equivalent standard axle (ESA) of 10 million.

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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, ...
    • Characterization Analysis and Design of Hydrated Cement Treated Crushed Rock Base as a Road Base Material in Western Australia
      Siripun, Komsun; Jitsangiam, Peerapong; Nikraz, Hamid (2009)
      The paper reports on the characterization of hydrated cement treated crushed rock base (HCTCRB), widely used as a road base material for Western Australian roads, the design and use of which is based on an empirical ...
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      Khobklang, Pakdee; Vimonsatit, Vanissorn; Jitsangiam, Peerapong; Nikraz, Hamid (2012)
      Hydrated cement treated crushed rock base (HCTCRB) is generally used as base course material for road pavement in Western Australia. Most of road pavement in Western Australia is normally designed using thin asphaltic ...
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