Recent foamed bituminous stabilisation works in Queensland

Logitharan, Lokanantham and Somasundaraswaran, Kathirgamalingam and Ramanujam, Jothi M. (2014) Recent foamed bituminous stabilisation works in Queensland. In: 4th International Conference on Geotechnique, Construction Materials and Environment (GEOMATE 2014), 19-21 Nov 2014, Brisbane, Australia.

Abstract

Adapting foamed bitumen stabilisation is considered as the most cost effective approach in Queensland to expedite the rehabilitation works, especially after the major flood devastation in 2011. This paper presents the key changes made as well as the recent practices adapted during a road rehabilitation work to increase the return from the investment. In this process, initially, the designed width for subgrade lime stabilisation has been modified to minimize the moisture entry into the pavement. The dry modulus, three days soaked resilient modulus and retain modulus were used to identify the suitable base material for construction. In addition, a trial site was used to examine the bulking effect on base layer when adding lime as secondary agent, which helped to estimate the exact depth for foamed stabilisation. A few innovative techniques such as a two-layer compaction to effectively condense stabilised subgrade, was used to improve the quality of the outcome were also highlighted.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Copyright 2014 by The GEOMATE International Society. In principle, no part of this publication may be reproduced without prior permission in writing from the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 08 Apr 2015 05:08
Last Modified: 19 Jun 2017 04:31
Uncontrolled Keywords: foamed bitumen; pedestrian footpath; flexible pavement; pavement rehabilitation; stabilisation
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091299 Materials Engineering not elsewhere classified
09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0905 Civil Engineering > 090507 Transport Engineering
Socio-Economic Objective: B Economic Development > 88 Transport > 8801 Ground Transport > 880106 Road Infrastructure and Networks
URI: http://eprints.usq.edu.au/id/eprint/26940

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