Characterization of hydrated cement treated crushed rock base as a road base material in Western Australia using disturbed state concept
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To design road pavement in Western Australia, Hydrated Cement Treated Crushed Rock Base (HCTCRB) is normally used as base course material. HCTCRB has been used and designed based on practical experience and empirical approach but these cannot explain the behaviour of HCTCRB base course. Currently, analysis and design and behaviour of structural pavement can be more reliable and more understood by the use of a mechanistic approach, one of which is the Disturbed State Concept (DSC). The purpose of this study is to assess the mechanical characteristics of HCTCRB by modelling the results of laboratory tests using DSC. Conventional triaxial tests and Repeated Load Triaxial (RLT) tests, following the Austroads-APRG 00/33 test standard, were performed and the experimental results were used to construct the DSC equation for HCTCRB. Also, the effect of moisture content on the behaviour of HCTCRB was investigated. The results reveal that the resilient modulus characteristics of HCTCRB can be modelled by the use of the proposed DSC equation.
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Characterisation, Analysis and Design of Hydrated Cement Treated Crushed Rock Base as a Road Base Material in Western AustraliaJitsangiam, Peerapong; Nikraz, Hamid; Siripun, Komsun; Chummuneerat, Suphat (2012)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 ...
Performance of Hydrated Cement Treated Crushed Rock Base as a Road Base Material in Western AustraliaChummuneerat, Suphat; Jitsangiam, Peerapong; Nikraz, Hamid (2012)Hydrated Cement Treated Crushed Rock Base (HCTCRB) is produced by adding 2%-Portland cement with standard crushed rock base. The mixture is disturbed after the specific hydration period to prevent setting up and retain ...
Resilient modulus of hydrated cement treated crushed rock base (HCTCRB) for road base material in Western AustraliaChummuneerat, Suphat; Jitsangiam, Peerapong; Nikraz, Hamid (2012)Hydrated Cement Treated Crushed Rock Base (HCTCRB) is a modified base course material, with anadditional of 2% Portland cement (by mass) to a standard crushed rock base. Based on the HCTCRB application protocol, the mix ...