Explore the mile markers of recycled tire rubber, rubberized asphalt and new processes to make RTR easier to implement with Douglas D. Carlson of Liberty Tire Recycling.
Innovations in Rubberized Asphalt Technology
Presented by Douglas D. Carlson, vice president of Asphalt Products, Liberty Tire Recycling
Live refreshments will be served.
This seminar is webcast live to a worldwide audience by ASU Fulton Schools’ Global Outreach and Extended Education.
About the talk
Since the 1970s, recycled tire rubber (RTR) has been used to modify asphalt binders to make paving applications that are more flexible, durable and cost effective. The predominant technology has been field blended, wet processed Asphalt-Rubber, pioneered in Arizona. Since the early 2000s, RTR has been used in terminal blends to meet Performance Graded asphalt specifications. In 2010, the next generation dry processes emerged, where a finer-grind RTR is engineered or pre-treated to make modified dense-graded mixes that use a balanced mix design approach. This presentation will touch on some of the historic mile markers and then focus on the new dry processes that make RTR easier to implement in paving applications.
About the speaker
Douglas D. Carlson has 19 years of experience working within the rubberized asphalt industry conducting more than 100 conferences, workshops, seminars and technology tours in Arizona, California, Texas and worldwide during his tenure with the Rubber Pavements Association. He is a recognized expert concerning rubberized asphalt, tire recycling and the use of granulated tire rubber in engineering materials. Currently, he is the vice president of Asphalt Products for Liberty Tire Recycling, since 2010.