Sargent, Dale (2016) Effectiveness of various pavement stabilisation techniques on Remote Gravel sources in Far North Queensland. Coursework Masters thesis, University of Southern Queensland. (Unpublished)
Abstract
The aim of the research was to determine the effectiveness of pavement stabilsation of substandard gravels in Far North Queensland could provide solutions to road construction projects in the area.
The project involved the use of current stabilisation techniques, such as GB cement, Hydrated Lime, Insoluble Dry Powdered Polymers and Polyacrylamide on a sub-standard gravel to determine the suitability for road construction.
Laboratory Tests were performed on the sample to determine the CBR strength, unconfined compressive strength, capillary rise of water and classification tests on the untreated gravel. The results were used to conduct a pavement analysis in the mechanistic pavement analysis program CIRCLY.
Results showed that the GB cement performed well based on increased stiffness, though this could cause issues when the pavement changes from rigid to a flexible pavement and would have to be monitored through long-term performance testing over the transition period. Lime stabilisation showed promising results with an increase in CBR strength while still maintaining flexibility. Dry Powdered Polymer provided significant CBR strength and excellent water resistance on the natural gravel, but did not provide sufficient strength for the Coen South project case study. There was no improvement from the polyacrylamides under standard compaction and was deemed not a viable solution under the test conditions.
Ther research aided in identifying areas that could be further developed in regards to stabilisation technology, construction practices and technology, theoretical relationships on modulus used for basic tests and also long term performance of pavements.
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| Item Type: | Thesis (Non-Research) (Coursework Masters) |
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| Item Status: | Live Archive |
| Faculty/School / Institute/Centre: | Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021) |
| Supervisors: | Nataatmadja, Andreas; Hamilton, David |
| Qualification: | Master of Engineering Sciences (Civil) |
| Date Deposited: | 23 Mar 2026 04:58 |
| Last Modified: | 23 Mar 2026 04:58 |
| Uncontrolled Keywords: | pavement; stabilisation; Far North Queensland |
| URI: | https://sear.unisq.edu.au/id/eprint/53191 |
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