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Merimbula Airport: Case Study on Sustainable and Resilient Airport Pavement Rehabilitation and Expansion
Conference paper   Open access   Peer reviewed

Merimbula Airport: Case Study on Sustainable and Resilient Airport Pavement Rehabilitation and Expansion

Greg White
Transport Transitions: Advancing Sustainable and Inclusive Mobility Proceedings of the 10th TRA Conference, 2024, Dublin, Ireland, Volume 5: Smart Resilient Infrastructure, Vol.1004, pp.3-9
Transport Research Arena (TRA) Conference, 10th (Dublin, Ireland, 15-Apr-2024–18-Apr-2024)
Lecture Notes in Mobility, Springer Nature
2026
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978-3-032-04774-8_1980.59 kBDownloadView
Published VersionCC BY V4.0 Open Access

Abstract

Flexible Resilient Rehabilitation Sustainable Pavement Airport
The airport pavements at Merimbula airport (Australia) required strengthening to support larger aircraft. Four structurally equivalent pavement designs were developed, using standard pavement materials, except for an option to use of foamed bitumen to stabilise the existing granular pavement material, prior to surfacing with an asphalt wearing course. The sustainability and resiliency of the four pavement designs were considered and scores assigned. The sustainability score was based on the embodied carbon in the rehabilitated pavements, while the resiliency score was subjectively assigned based on the resistance of the pavement to moisture ingress. It was found that the new rigid pavement and the foamed bitumen stabilised flexible pavement were the most resilient, reflecting the bound nature of these materials. Furthermore, the foamed bitumen stabilised pavement and the structural asphalt overlay of the existing pavement were preferred in terms of sustainability. Because of its high scores in both sustainability and resiliency, the foamed bitumen stabilised pavement was preferred. It is recommended that other airports consider the potential for stabilisation of existing pavements, for sustainable and resilient pavement rehabilitation, whenever the existing pavement materials are suitable.

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