- Title
- Infiltration rates of recycled tyre-based permeable asphalt pavements and future maintenance
- Creator
- Raeesi, Ramin; King, Russell; Soltani, Amin; Distani, Mahdi
- Date
- 2021
- Type
- Text; Conference paper
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/197386
- Identifier
- vital:18854
- Abstract
- More than a quarter of Australian urban areas are covered by impermeable surfaces. This shift from "naturally-permeable" to "impervious" surfaces results in an increase in the surface runoff during rainfalls, which contributes to an increase in flash flooding. Permeable pavements are among potential solutions to reduce the amount of surface runoff and the risk of flash floods; however, the main barriers in their uptake is their perceived lack of capacity to perform under traffic loads, rate of infiltration, and perceived reduction in permeability over time caused by clogging. This study reports on the hydro-mechanical performance of a large-scale permeable pavement trial site, constructed by the combination of tyre-and rock-derived aggregates, bonded together using a polyurethane-based binder, located at a car park in the City of Mitcham, South Australia. An area of approximately 400 m 2 , consisting of 24 parking bays, was paved using a variety of waste tyre-based blends. A series of in-situ double-ring infiltration tests were carried out over a nine-month period to study the evolution of clogging over time. A practical maintenance program, involving the use of a conventional street sweeper vehicle, was also developed and successfully implemented to cope with the potential adverse effects of pavement clogging. The infiltration rates, even nine months after construction, were consistently greater than the 0.4 cm/s-requirement commonly suggested for porous asphalt systems. The mechanical sweeper using one sweeping pass was found to be an effective solution for permeability recovery. Furthermore, the intense spot-sweeping approach, which involved five sweeping passes over highly-clogged locations, led to a further increase in the permeability; however, the magnitude of improvement was relatively small compared with the single-sweeping technique
- Relation
- Stormwater2021; Melbourne; 17-19 June 2021
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
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