FREE WEBINAR: Asphalt Mix Overlay Alternative for Low Volume Roads on Local Transportation System
Date: June 17, 2021
Time: 1:00pm – 2:00pm (ET)
Researchers: Dr. Ala Abbas, (The University of Akron)
Pavement resurfacing for low-volume roads with extensive cracking is an issue faced by many local public agencies (LPAs) in Ohio. Current options range from chip sealing, which is generally not effective if used on a pavement surface in a poor condition, to full-depth reclamation. While the latter option might provide a more durable surface, it is prohibitively expensive for most LPAs especially for roads with very low traffic volumes.
Another resurfacing option used by some counties in Ohio is motor paving with cold mix asphalt followed by chip sealing. In this process, aggregates are mixed with an asphalt emulsion in a paver and applied to the road surface. The paved surface is then compacted with a roller and choked with No. 9 aggregates. After the emulsion has cured, the surface is chip sealed. The advantage of this option is that it provides a resilient mix that conforms to the surface of the existing pavement. While counties using this resurfacing option have reported positive results, the required motor paver equipment is not widely available in Ohio, making this option expensive for some LPAs. This research project aimed to identify or develop a practical method for designing a well-performing asphalt mixture for use on low-volume local roads with severe cracking that has comparable performance to a cold-laid, motor paver mixture, can be produced in existing asphalt plants, and can be placed using conventional paving equipment available in Ohio.
HOW TO ATTEND
The Research results presentation is open for webinar participation. There is no fee to participate; however, registration is required by 3:00 pm on Monday, June 14, 2021.
Once you register, you will receive an email from Go-To-Webinar confirming your registration with meeting information. Certificates of attendance will be sent from the LTAP Office 5 to 7 business days after the presentation. If you have any questions, please contact the ODOT Research Section.
Office of Statewide Planning & Research
Ohio Department of Transportation
1980 W. Broad St., 2nd Floor | Mail Stop 3280 | Columbus, OH 43223