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Curtailing the Adverse Effects of Expansive Soils on Roads Applying a New Remediation Technique Incorporating Bagasse Ash and Fibre

Project Member(s): Khabbaz, M., Fatahi, B.

Funding or Partner Organisation: Arup Australia Pty Ltd (Arup Pty Ltd)

Start year: 2015

Summary: This proposal has been provided to establish an active collaboration between the Industry partner, Arup Pty Ltd, and the Faculty of Engineering and IT at the University of Technology, Sydney (UTS). The Chief Investigators in this project are from the Geomechanics Research Group, at the Centre for Built Infrastructure Research (CBIR). The main outcome of this research is providing an industry application on development of a practical and cost effective approach (using sugarcane bagasse to treat expansive soils), which can be used by practicing engineers to overcome damages of expansive soils underlying roads. A research student will receive advanced training to conduct laboratory experiments, perform literature review, prepare the report and publish a paper. He will also develop a comprehensive research plan for further collaboration with Arup to develop a sustainable approach to minimise the damage to roads due to swelling of expansive subgrades. The industry contract research income would be $10k (excl.GST) for 1 year (paid in full when contact is signed) plus appropriate in-kind contributions.

Publications:

Dang, LC, Dang, CC & Khabbaz, H 2017, 'Numerical Analysis on the Performance of Fibre Reinforced Load Transfer Platform and Deep Mixing Columns Supported Embankments', Ground Improvement and Earth Structures: GeoMEast 2017 on Sustainable Civil Infrastructures, GeoMEast 2017, Springer International Publishing, Sharm El-Sheikh, Egypt, pp. 157-169.
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Dang, LC, Khabbaz, H & Fatahi, B 2017, 'An experimental study on engineering behaviour of lime and bagasse fibre reinforced expansive soils', Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, the 19th International Conference on Soil Mechanics and Geotechnical Engineering, ISSMGE, Seoul, Republic of Korea, pp. 2497-2500.
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Dang, LC, Fatahi, B & Khabbaz, H 2016, 'Behaviour of Expansive Soils Stabilized with Hydrated Lime and Bagasse Fibres', Procedia Engineering, vol. 143, pp. 658-665.
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Dang, LC, Hasan, H, Fatahi, B, Jones, R & Khabbaz, H 2016, 'Enhancing the Engineering Properties of Expansive Soil Using Bagasse Ash and Hydrated Lime', International journal of GEOMATE, vol. 11, no. 25, pp. 2447-2454.
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Hasan, H, Dang, L, Khabbaz, H, Fatahi, B & Terzaghi, S 2016, 'Remediation of Expansive Soils Using Agricultural Waste Bagasse Ash', Procedia Engineering, vol. 143, pp. 1368-1375.
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Dang, LC, Dang, CC, Khabbaz, H & Fatahi, B 2016, 'Numerical Assessment of Fibre Inclusion in a Load Transfer Platform for Pile-Supported Embankments over Soft Soil', Geotechnical Special Publication, GeoChina International Conference, American Society of Civil Engineers, Shandong, China.
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Hasan, H, Khabbaz, H & Fatahi, B 2016, 'Impact of Quicklime and Fly Ash on the Geotechnical Properties of Expansive Clay', Proceedings of the Geotechnical Special Publication, GeoChina International Conference, ASCE, Shandong, China, pp. 93-100.
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Dang, L, Hasan, H, Fatahi, B & Khabbaz, H 2015, 'Influence of Bagasse Ash and Hydrated Lime on Strength and Mechanical Behaviour of Stabilised Expansive Soil', GEOQuébec 2015, Québec City, Canada.
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Dang, L., Hasan, H., Fatahi, B., Jones, R. & Khabbaz, H. 2015, 'Effects of Bagasse Ash and Hydrated Lime Addition on Engineering Properties of Expansive Soil', GEOMATE 2015, The GEOMATE International Society, Osaka, Japan.
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Keywords: Expansive soil, bagasse ash and fibre, stabilisation

FOR Codes: Civil Geotechnical Engineering, Civil Construction Design