A preliminary study on foamed bitumen stabilisation for Western Australian pavements
Currently, the popularity of conventional cementitious stabilisation had been challenged by an innovative soil improvement technique, known as foamed bitumen stabilisation. Many Australian highway and road agencies have dedicated significant investigation and funds to investigate this technique in o...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Academic Journals
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/38489 |
| _version_ | 1848755334134366208 |
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| author | Huan, Yue Siripun, Komsun Jitsangiam, Peerapong Nikraz, Hamid |
| author_facet | Huan, Yue Siripun, Komsun Jitsangiam, Peerapong Nikraz, Hamid |
| author_sort | Huan, Yue |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Currently, the popularity of conventional cementitious stabilisation had been challenged by an innovative soil improvement technique, known as foamed bitumen stabilisation. Many Australian highway and road agencies have dedicated significant investigation and funds to investigate this technique in order to achieve a more flexible and fatigue resistant stabilised material suitable for a wide range of pavement conditions. This study aimed to report the preliminary study of the foamed bitumen properties and the mix procedures conducted at Curtin University which simulated the construction of the trial foamed bitumen stabilised project in Western Australia. Our findings show that 2.5% of cold water spraying into 180°C virgin Class 170 bitumen can produce foamed bitumen with a 15 to 20 times expansion rate and 20 s half-time suitable for foaming aggregates. Both resilient modulus and permanent deformation tests failed to predict an optimum foamed bitumen content when the aggregate was mixed with 1% hydrated lime, compacted at 100% optimum moisture content and plastic sealed curing for 7 days at room temperature.However, the ratio of crushed granite roadbase to limestone was found to be significant and a mixture consisting of 75% crushed rock base and 25% crushed limestone was determined as the optimum aggregate proportion, as it showed the best performance in unconfined compressive strength tests and obtained relatively higher values in indirect tensile strength tests. Based on our preliminary results, due to adding more foamed bitumen to in-situ recycled aggregate seems to reduce the performance of materials, a more comprehensive laboratory investigation of the foamed bitumen stabilisation process in Western Australia would be essential. |
| first_indexed | 2025-11-14T08:54:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-38489 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:54:39Z |
| publishDate | 2010 |
| publisher | Academic Journals |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-384892017-01-30T14:22:02Z A preliminary study on foamed bitumen stabilisation for Western Australian pavements Huan, Yue Siripun, Komsun Jitsangiam, Peerapong Nikraz, Hamid unconfined compressive strength crushed limestone Foamed bitumen resilient modulus permanent deformation indirect tensile strength crushed rock base Currently, the popularity of conventional cementitious stabilisation had been challenged by an innovative soil improvement technique, known as foamed bitumen stabilisation. Many Australian highway and road agencies have dedicated significant investigation and funds to investigate this technique in order to achieve a more flexible and fatigue resistant stabilised material suitable for a wide range of pavement conditions. This study aimed to report the preliminary study of the foamed bitumen properties and the mix procedures conducted at Curtin University which simulated the construction of the trial foamed bitumen stabilised project in Western Australia. Our findings show that 2.5% of cold water spraying into 180°C virgin Class 170 bitumen can produce foamed bitumen with a 15 to 20 times expansion rate and 20 s half-time suitable for foaming aggregates. Both resilient modulus and permanent deformation tests failed to predict an optimum foamed bitumen content when the aggregate was mixed with 1% hydrated lime, compacted at 100% optimum moisture content and plastic sealed curing for 7 days at room temperature.However, the ratio of crushed granite roadbase to limestone was found to be significant and a mixture consisting of 75% crushed rock base and 25% crushed limestone was determined as the optimum aggregate proportion, as it showed the best performance in unconfined compressive strength tests and obtained relatively higher values in indirect tensile strength tests. Based on our preliminary results, due to adding more foamed bitumen to in-situ recycled aggregate seems to reduce the performance of materials, a more comprehensive laboratory investigation of the foamed bitumen stabilisation process in Western Australia would be essential. 2010 Journal Article http://hdl.handle.net/20.500.11937/38489 Academic Journals fulltext |
| spellingShingle | unconfined compressive strength crushed limestone Foamed bitumen resilient modulus permanent deformation indirect tensile strength crushed rock base Huan, Yue Siripun, Komsun Jitsangiam, Peerapong Nikraz, Hamid A preliminary study on foamed bitumen stabilisation for Western Australian pavements |
| title | A preliminary study on foamed bitumen stabilisation for Western Australian pavements |
| title_full | A preliminary study on foamed bitumen stabilisation for Western Australian pavements |
| title_fullStr | A preliminary study on foamed bitumen stabilisation for Western Australian pavements |
| title_full_unstemmed | A preliminary study on foamed bitumen stabilisation for Western Australian pavements |
| title_short | A preliminary study on foamed bitumen stabilisation for Western Australian pavements |
| title_sort | preliminary study on foamed bitumen stabilisation for western australian pavements |
| topic | unconfined compressive strength crushed limestone Foamed bitumen resilient modulus permanent deformation indirect tensile strength crushed rock base |
| url | http://hdl.handle.net/20.500.11937/38489 |