TSA has funded 34 projects to a total of over $4.9 million through the Tyre Stewardship Fund. Some of the projects are still in negotiation or are yet to been announced. The current projects underway are listed below.
They operate in diverse project areas including explosives, manufacturing, road, rail, building infrastructure and carbon composite material research.
There are a number of different organisations and partnerships funded including tyre recyclers, universities, road agencies, state government authorities.
The Fund is open for applications.
University of NSW & Green Distillation Technologies
Developing graphene integrated super-composite materials using end-of-life tyres
Developing Graphene Integrated Super-composite materials using end-of-life tyres. This project is looking at the utilisation of chemicals from the pyrolysis of tyres to create graphene composite materials for high value applications.
University Wollongong and the Rail Innovation Cooperative Research Centre
Performance of recycled rubber inclusion for improved stability of railways
Performance of recycled rubber inclusions for improved stability of railway: Identify opportunities to use rubber mats manufactured using tyre rubber to improve rail ballast performance and replace more-costly, imported geo-synthetic materials.
University of South Australia and the Australian Research Centre
Reinforced crumb rubber concrete for residential construction
To demonstrate that reinforced crumb rubber concrete is an economically viable and sustainable alternative to conventional reinforced concrete for residential structural engineering applications.
Assessment of liquid fuel, chemicals and porous material production from end-of-life tyres
This project involves an independent assessment of the tyre pyrolysis method to measure process outputs in an empirical and unbiased manner. Such information is integral to the discussions around these technologies as the Australian market matures.
University of South Australia & University Technology Sydney
Physical properties of tyre walls in residential housing construction
Earthships (https://www.earthshipglobal.com) use tyres as the structural basis for housing construction. This research will aim to provide technically verified, independent data that relates the performance of these structures to Australian building codes and requirements. There are also concerns around tyre ‘offgassing’ into living spaces and the impact of this, should it actually occur.
City of Mitcham (SA), Australian Road Research Board, Topcoat
Dense grade crumb rubber asphalt trial - City of Mitcham
The City of Mitcham, in South Australia, is currently undertaking laboratory and field testing to further validate the measurable benefits in performance and asset life, in highly expansive soils, of crumb rubber asphalt. Data gained will help broaden the use by other local government authorities.
Generation of gases from end-of-life tyres and purification using novel graphene molecular sieve
To utilise graphene oxide membranes as molecular sieves to separate gases (such as CH4, H2) generated via pyrolysis of waste tyres. The project is currently studying high temperature pyrolysis to generate valuable gases from waste tyres as one of the major tasks of another Tyre Stewardship Australia project, in collaboration with Green Distillation Technology Corporation. Initial results indicate that waste tyres can be a highly valuable resource to generate pure gases for various industrial applications. A technology for producing pure gases from waste tyres can be a significant contribution in developing cost effective renewable energy resources. The study will also investigate the commercial applications for gases generated from these processes. Formative business case development will occur to understand the process inputs relative to the value associated with the extraction and utilisation of the gases.
Innovative design of lightweight and structurally efficient composites incorporating crumb rubber
Aiming to develop new multifunctional fibre-reinforced polymer (FRP) composite materials incorporating crumb rubber as a means to enhance the structural, acoustic and, thermal insulation and vibration damping characteristics for wide ranging applications, including road and rail infrastructure, transport vehicles and, building and construction. The proposed research will stimulate composite production industries and markets for EOLTs by creating high-volume and value-added engineering products that meet or surpass international standards for varied structural and functional engineering applications.
Main Roads Western Australia and Australian Asphalt Pavement Association (AAPA), Australian Road Research Board (ARRB), Qld Department of Environment & Heritage Protection, Qld Transport & Main Roads
transfer of crumb rubber modified asphalt and sealing technology to Queensland and Western Australia
International studies have shown that gap graded asphalt with crumb rubber modified (CRM) binders can provide improved resistance to crack reflection compared to conventional asphalt. These mixes are therefore commonly used when rehabilitating/overlaying existing pavements where improved resistance to crack reflection is required. It is envisaged that similar applications will apply in Australia.
Currently there are no specifications available in Queensland and Western Australia for the use of CRM binders in gap graded asphalt to readily make use of the benefits in rehabilitation treatments (such as asphalt overlays). The development of a technical specification for crumb rubber modified gap graded asphalt will assist to overcome a significant barrier to its use in this application.
Curtin University and Lomwest Enterprises
Development of reinforced concrete - recycled tyre bale sandwich structural wall system
The evaluation of a wall system using baled end-of-life tyres sandwiched between highly stable concrete skins. This wall panel can be placed side-by-side or on top of each other. The resulting wall system can be used as retaining wall, blast resistant wall, exterior walls for thermal housing, etc. This project will study the structural behaviour of the proposed sandwich wall and enable the product to be used for practical construction projects. The outcomes of the project will be a study of the performance qualities of the reinforced concrete tyre bale which will enable the product to be utilised more broadly for construction purposes thereby increasing the utilisation of Australian waste tyres for productive outcomes.
High Shear Mobile Crumb Rubber Mixer
The development of an innovative mobile plant that can mix crumb rubber spray seal for road projects where it is not feasible to deliver binder from fixed plants.
One of the benefits of a mobile crumb rubber blending solution is that it can be quickly and effectively moved to demand points, providing top quality, consistent product to consumers nation-wide; particularly helpful in regional and remote areas outside the reach of traditional fixed plants.
Through the provision of high-quality product to a broader range of consumers, the project is expected to consume over 2,000 tons of high-quality rubber per year.
The project will test the force resistance performance of a blast and ballistic mitigating cementitious building product that contains tyre derived materials.
The new product provides force protection against extreme blast and ballistics and can be retrofitted to existing structures or integrated into new builds.
There is an opportunity to use the Protectiflex product in the industrial, security and commercial sectors through the development of a pumpable mix that can be applied to:
Composite wall or structural systems for mitigation of extreme hazards to building assets and personnel safety
A structural security system that can be retrofitted into existing structures or integrated into new builds
The protection of critical infrastructure
University of Melbourne, Mitcham City Council, Merlin Site Services
The project will involve the building of Australia’s largest ever tyre-derived permeable pavement surface in a car park operated by Mitcham City Council in South Australia.
As a large-scale field test, the project will enable the impact of real-life traffic loading to be measured by a comprehensive set of mechanical and storm-water instrumentation, thus verifying the performance of the product under different traffic load conditions.
Parameters to be measured include mechanical performance, mitigation of the surface run-off as well as impact of reduced pollutants flowing to waterways.
University of Melbourne
Concrete road barriers
A project aiming to provide evidence of the significant benefits of rubberised concrete in road barrier applications.
Through extensive physical and numerical investigations, the intent is to support the contention that rubberised concrete barriers are more resilient, consequently improving road safety, whilst also offering a cost-effective use for recycled materials.
The elastic properties of tyre-derived rubber can significantly enhance the impact resistance of concrete. This will have the effect of reducing the force of vehicle impact thereby reducing the likelihood of injury and death.
The resilience of rubberised concrete not only withstands harsh environmental conditions but, due to its superior impact resistance, can also tolerate damage from small crashes. Therefore, it is expected that the service life of road barriers can be substantially increased; further reducing costs and their carbon footprint.
ARRB - Vic Roads
Crumb rubber asphalt trial
In a project to promote sustainable solutions for surfacing of heavily trafficked roads, VicRoads will trial market-ready, crumb-rubber modified asphalt products on their road network and monitor performance over time.
The performance data will assist with the modification of specifications and application practices relating to the use of crumbed-rubber asphalt products. The aim being to increase the scope of use and thus, the total consumption of tyre-derived crumb rubber in road building.
The project also aims to overcome perceived barriers to the use of crumb rubber asphalt, such as OH&S and cost concerns.
There will be a particular focus on warm mix technologies for crumb-rubber asphalt.