Mechanistic classification of cement treated base in Western Australia
Cement treated crushed rocks are increasingly seen as viable pavement materials capable of meeting increasing loads of current traffic conditions. Cement treatment of crushed rocks forms interlocking matrices between aggregates, altering the physical construct of the material. The change in properti...
| Main Authors: | , , |
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| Format: | Conference Paper |
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ICMS Pty Ltd
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/3498 |
| _version_ | 1848744248512348160 |
|---|---|
| author | Yeo, Yang Sheng Jitsangiam, Peerapong Nikraz, Hamid |
| author2 | Not listed |
| author_facet | Not listed Yeo, Yang Sheng Jitsangiam, Peerapong Nikraz, Hamid |
| author_sort | Yeo, Yang Sheng |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Cement treated crushed rocks are increasingly seen as viable pavement materials capable of meeting increasing loads of current traffic conditions. Cement treatment of crushed rocks forms interlocking matrices between aggregates, altering the physical construct of the material. The change in properties ultimately leads to improved mechanical performance allowing otherwise mechanically unsuitable materials to be selected as sound pavement base. In Australia, the mechanistic-empirical design approach for flexible pavements considers the strength and stiffness developed by cementitiously bound materials by taking into account the flexural modulus of the composite material, Ef. The distinction between bound or unbound material is therefore pivotal to streamline the design process. Current Austroad guidelines for the classification of cement treated base are dependent on the Unconfined Compressive Strength (UCS). Limitations exist in classifying materials with UCS alone, especially in Western Australia (WA) where there are limited studies on mechanistic characterisation of cement treated crushed rocks. This paper provides a regression analysis between UCS and flexural modulus of WA quarried crushed rocks to quantify the cement content which separates bound from unbound behaviour. Variability in sample preparation and testing methods in determining flexural modulus has been known to cause inconsistent results. In response, this investigation applies recent developments in pavement testing regimes for Indirect Tensile Tests and Flexural Beam Test. The relationship between UCS and flexural modulus of cement treated crushed rock as a function of cement content is established, providing a more realistic assumption of the behaviour of cement treated crushed rocks in WA. |
| first_indexed | 2025-11-14T05:58:27Z |
| format | Conference Paper |
| id | curtin-20.500.11937-3498 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T05:58:27Z |
| publishDate | 2010 |
| publisher | ICMS Pty Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-34982017-01-30T10:31:42Z Mechanistic classification of cement treated base in Western Australia Yeo, Yang Sheng Jitsangiam, Peerapong Nikraz, Hamid Not listed Cement treated crushed rocks are increasingly seen as viable pavement materials capable of meeting increasing loads of current traffic conditions. Cement treatment of crushed rocks forms interlocking matrices between aggregates, altering the physical construct of the material. The change in properties ultimately leads to improved mechanical performance allowing otherwise mechanically unsuitable materials to be selected as sound pavement base. In Australia, the mechanistic-empirical design approach for flexible pavements considers the strength and stiffness developed by cementitiously bound materials by taking into account the flexural modulus of the composite material, Ef. The distinction between bound or unbound material is therefore pivotal to streamline the design process. Current Austroad guidelines for the classification of cement treated base are dependent on the Unconfined Compressive Strength (UCS). Limitations exist in classifying materials with UCS alone, especially in Western Australia (WA) where there are limited studies on mechanistic characterisation of cement treated crushed rocks. This paper provides a regression analysis between UCS and flexural modulus of WA quarried crushed rocks to quantify the cement content which separates bound from unbound behaviour. Variability in sample preparation and testing methods in determining flexural modulus has been known to cause inconsistent results. In response, this investigation applies recent developments in pavement testing regimes for Indirect Tensile Tests and Flexural Beam Test. The relationship between UCS and flexural modulus of cement treated crushed rock as a function of cement content is established, providing a more realistic assumption of the behaviour of cement treated crushed rocks in WA. 2010 Conference Paper http://hdl.handle.net/20.500.11937/3498 ICMS Pty Ltd restricted |
| spellingShingle | Yeo, Yang Sheng Jitsangiam, Peerapong Nikraz, Hamid Mechanistic classification of cement treated base in Western Australia |
| title | Mechanistic classification of cement treated base in Western Australia |
| title_full | Mechanistic classification of cement treated base in Western Australia |
| title_fullStr | Mechanistic classification of cement treated base in Western Australia |
| title_full_unstemmed | Mechanistic classification of cement treated base in Western Australia |
| title_short | Mechanistic classification of cement treated base in Western Australia |
| title_sort | mechanistic classification of cement treated base in western australia |
| url | http://hdl.handle.net/20.500.11937/3498 |