Conference paper
Making the Case for Considering Marginal Materials for Foamed Bitumen Stabilisation
Conference Proceedings: Abstracts, Papers and Presentations, pp.1-12
Australian Flexible Pavement Association (AfPA) International Flexible Pavement Conference, 2021 (Online, 03-Aug-2021–05-Aug-2021)
Australian Flexible Pavement Association
2021
Abstract
One increasing expectation of modern society is the development of more sustainable infrastructure, including roads and other pavement structures. There has been much focus on recycling in roads in recent years, with plastic, waste, glass, toner, concrete and construction rubble all investigated to determine their effects in concrete, asphalt and granular layers. However, the conservation of existing virgin material sources is just as important and one strategy for that is to modify or stabilise marginal materials to produce a fit for purpose product out of an otherwise unacceptable granular material. This research compares foamed bitumen stabilisation of three marginal materials to otherwise identical stabilisation of a standard material. Furthermore, the marginal materials were also pre-improved by blending to correct their marginality prior to stabilisation, and those results were compared. The outcomes demonstrate the potential for some marginal gravels to perform just as well as standard crushed rock after stabilisation, as well as the potential to significantly improve marginal gravels by blending with other marginal materials to pre-correct their deficiency. The recommendations include a more outcome or performance based specification of foamed bitumen stabilisation to allow marginal gravels to be used when they are shown to be fit for purpose.
Details
- Title
- Making the Case for Considering Marginal Materials for Foamed Bitumen Stabilisation
- Authors
- Roberto Espinosa (Author) - Fulton Hogan (Ormeau, Queensland)Gregory White (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
- Publication details
- Conference Proceedings: Abstracts, Papers and Presentations, pp.1-12
- Conference details
- Australian Flexible Pavement Association (AfPA) International Flexible Pavement Conference, 2021 (Online, 03-Aug-2021–05-Aug-2021)
- Publisher
- Australian Flexible Pavement Association
- Date published
- 2021
- Organisation Unit
- University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99578907502621
- Output Type
- Conference paper
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