TSA has funded 24 projects to a total of over $3 million through the Tyre Stewardship Research 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 last funding round closed on November 30, 2018. The opening of the next funding round will be announced here.
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.
Australian Road Research Board (ARRB) Queensland, Transport and Main Roads Queensland, Department of Environment and Heritage Queensland
Transfer of crumb rubber modified asphalt and sealing technology to Queensland
Focused on the transfer of proven crumb rubber modified surfacing technologies to Queensland in order to optimise the use of recycled tyre rubber with an initial focus on increasing the use of spray seals in Queensland. It has also been an important project in monitoring emissions associated with the use of crumb rubber asphalt (CRA) – a key market barrier to the products greater utilisation in Australia. This project saw the creation of specifications for open graded asphalt in Queensland. The intent will now be to extend the use of this specification across Australia via AustRoads.
ARRB Victoria, VicRoads & Sustainability Victoria
Explore and evaluate local market development opportunities for crumb rubber in Victorian roads
The development of an evidence based strategy to revise current VicRoads asphalt specifications to identify engineering and economically viable applications for CRA. Work to date has focused on crumb rubber in dense graded asphalt and the ‘structural fatigue layer’. This work complements that which is being undertaken in Queensland.
University of Melbourne & PreFab Australia
A green lightweight composite pane system using recycled tyres
Investigating the use of tyres as a low-density aggregate in lightweight concrete sandwich panels for construction. Results to date are promising and further work is looking to see how crumb rubber can replace foam concrete (which can falter structurally) which will increase potential load bearing while still maintaining low weight and insulation properties required.
University of Melbourne & Merlin Site Services
Recycled tyre in permeable pavement applications
Recycled tyres in permeable pavement: Investigate the suitability of using a 60% waste tyre mix in permeable pavement applications as a new storm-water management solution. This is an innovative application in the growing water sensitive urban design industry.
Chip Tyre, BioAust Energy, Sequence Blast & Drill
High speed polymer coating of rubber crumb fueled explosives
High speed polymer coating of rubber crumb fueled explosives: This project looks at the development of a high-speed method for using rubber in on-site production of explosives at mines, quarries and construction projects. It is a potentially innovative and commercially worlds first that has the ability to consume tyre-derived product in the tens of thousands of tonnes once validated.
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.
Flexiroc, Tuff Turf & Pakenham Racing
Equine Air Pakenham Racing Club Project
The project will provide a new benchmark for an engineered free-draining racetrack for the thoroughbred racing industry in Australia using tyre-derived aggregate in the track sub base. The successful project will open up the market Australian to a totally new technology with all the advantages of increased track utilisation in all weather conditions, improved ride for both horse and rider and reduced deaths and injuries.
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.
Curtain 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.
Production of tyre crumb derived composite material
Based upon the successful outcomes from the initial project further investment will test the scaling capability of the technology, with the aim of producing the composite material pellets in a master batch volume. This will determine if the production process will be able to cope with future required manufacturing quantities for use in the large volume Irrigation Pipes and Sewerage Pipes markets.
This scale-up project will involve ordering new purpose built plant, as well as specialised materials handling equipment, for combining the tyre crumb derived Polymeric Powder and Polyolefin material. Should this initial plant prove beneficial, the first commercial facility utilising the new equipment will have a ‘potential production capacity for manufacturing the Polymeric Powder composite material pellets at 100,000 tons per annum, being 6,250,000 EPUs of end-of-life standard passenger car tyres from this first facility’. This could provide a substantial potential market pull through once these figures are verified.