Dear Readers,

Month by month, our Weibold academy series dwells deeper into the world of tire recycling and highlights different sides of this business. In case you have missed our previous articles, you can find the links at the end of this post.

Sustainable rubber powder composites 

Today, the world is witnessing gradual increase in tire recycling technologies, as well as improvement in tire recycling applications. Waste tires, which can be used as substitute for traditional raw materials, need to be processed in environment-friendly way, thus many ground-breaking technologies have been introduced. End-of-life tire (ELT) materials receive new uses where moulded rubber products and tire-derived fuel could be applied, including agricultural and civil engineering fields. Principal Research Fellow Dr. Davide Lo Presti from Nottingham University has conducted a study on how ELTs are used in rubber-modified asphalt, including the use of RTR-MBs (rubber-modified bitumen) for improvement of road surface.

The scholar has worked extensively on technologies which could allow to reuse waste tire materials and to reapply them for production of railway ties, pavements and roofing membranes. The scientist asserted that there is increasing sentiment among researchers as range of applications of bitumen-rubber blends and rubberised asphalt in civil engineering rises and proves ever more successful. Potentially, this could profoundly contribute in resolving issues with waste tire accumulation.

Dr. Davide Lo Presti emphasizes importance of his study which considers sustainable use of tire-derived products. New applications and knowledge how to successfully blend materials is of high value as tire recycling provides both social and economic benefits.

Tire rubber can be used to create goods capable of competing with commercially available products and they can withstand the competition equally in technological and economic terms. Tire rubber can, for instance, substitute synthetic polymers, thus making products cheaper and yielding additional beneficial properties. The scholar claims that in some cases further research on primary treatment of tire-rubber is needed so it can become better-suited as a raw material. In addition, he asserts that also authorities should fuel this change and that they need to give priority to development of markets for environment-friendly products.

Given potential of ELT, and tire rubber in general, to be reused number of times, recycling is believed, according to Davide, to be the most efficient method of addressing sustainability problems in civil engineering.

The scientist declares that scope of application and further research deserves more serious attention and then the material can, no doubt, become integral part of today’s circular economy solutions. Reusing tires in civil engineering will yield numerous environmental advantages. Tire manufacturers, on the opinion of the scientist, have to bear one of the major roles in fuelling innovations in this field.

He also says that if end-of-life tire products are reused by tire manufacturers, it may resolve a problem of their undervaluing tire-derived materials, which today results in landfilling, burning tires, etc. Moreover, burning tires also leads to CO2 emissions. To tackle these issues, politicians and industries should cooperate, undertake concerted efforts in R&D and establish mutual agreements. To achieve success in this field, political backing is needed and eventually these efforts can lead our society to creation of well-organized circular economy.

Elaborating on problems of his research, Davide points at improvement of rheometry of rubberised bitumen. Estimation of the rheology is challenge for bitumen technologists, and the scholar has developed processes allowing to get accurate viscosity measurements of complex fluids during engineering of the rubberized binders.

Davide asserts that rubberised binder is a mechanism that performs well and should be viewed as a primary choice for replacing polymer-modified bitumen.

To find out more about tire recycling and applications for recycled tire rubber, send us your inquiry to robert@weibold.com. We will be happy to help you build a flourishing tire recycling and pyrolysis business!

Links to our previous newsletters:

  1. Welcome to weibold! Academy
  2. weibold! Academy: Recycled Rubber Output Spectrum and Rubber Granulates
  3. weibold! Academy: Rubber Granulates, Rubber Powder, Tire Derived Steel and Tire Derived Fiber
  4. weibold! Academy: Tyre Recycling Value Chain
  5. weibold! Academy: Applications for Tyre Recycling Plant Output
  6. weibold! Academy: Rubber Granulate Applications
  7. weibold! Academy: Rubber Powder Applications – Rubber Industry
  8. weibold! Academy: Rubber Powder Applications – Surface Coatings
  9. weibold! Academy: Success Factors in the Tire Recycling Industry
  10. weibold! Academy: Understanding Tire Recycling Technology
  11. weibold! Academy: Total Quality Management in Tire Recycling
  12. weibold! Academy: Applications for Fibers from End-of-Life Tires
  13. weibold! Academy: Safety and health effects of crumb rubber infill in artificial turf
  14. weibold! Academy: Tire pyrolysis – products and applications
  15. weibold! Academy: Tire-derived fuel in cement production
  16. weibold! Academy: How to improve tire collection in small cities
  17. weibold! Academy: How to prevent tire fires
  18. weibold! Academy: Recycled tires in railroad construction
  19. weibold! Academy: Basics about tire-derived fuel
  20. weibold! Academy: Waste tires in civil engineering
  21. weibold! Academy: How to create your own sandals from used tires