Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ Feasibility Study of Zinc Diethyldithiocarbamate (ZDC) Modified Asphalt Mixture for Enhanced Safety through Improved Aging Resistance in Asphalt Pavement https://rip.trb.org/View/2703922 Tue, 19 May 2026 13:37:20 GMT https://rip.trb.org/View/2703922 Exploring the Use of Antioxidants to Substantially Increase Cracking Life of Asphalt Pavement https://rip.trb.org/View/2420092 Fri, 23 Aug 2024 11:12:19 GMT https://rip.trb.org/View/2420092