18 June 2020, 4:30PM AEST
Join us for this FREE WARRIP webinar!
Every year millions of tyres in Australia reach their functional end-of-life.These end-of-life tyres contain petroleum derivatives and significant embedded energy and are therefore a potentially valuable resource for recycling. At present, most end up in landfill, inappropriately dumped or exported overseas. Rubber and carbon black make up approximately 70% of the weight of a tyre. One potentially high value alternative destination for these materials is as a crumb rubber modifier (CRM) in bitumen used for road construction. The use of CRM binder in both asphalt and sprayed bituminous seals can provide increased durability and cracking resistance. In addition to improved performance, recycling ground tyre rubber reduces landfill volumes and preserves natural resources.
This presentation will detail the findings of two recent WARRIP projects, exploring the development of a crumb rubber modified (CRM) binder incorporating 18% crumb rubber as well as the use of the binder in both Open Graded Asphalt (OGA) and Gap Graded Asphalt (GGA). The CRM OGA has proven to be a practical replacement for OGA with PMB, has increased binder content and allows for increased air voids. The CRM GGA mixes have a binder content of about 8% and have improved fatigue characteristics over standard mixes, particularly at lower strain levels
Steve Middleton - Senior Professional Leader, Future Transport Infrastructure, ARRB
Steve Halligan - Bituminous Products Consultant, Main Roads WA
Join us for this FREE ARRB webinar on June 18, 2020 at 4:30 PM AEST.
Participants please note – this session will commence at 4:30 PM Australian Eastern Daylight Time (AEST). There may be time zone differences that apply. It is recommended that you connect to the webinar 15 minutes prior to allow sufficient time for potential connection delays. It is also important that you check the system requirements for the webinar in advance of the session.
After registering, you will receive a confirmation email containing information about joining the webinar.