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/ Smart Healing in Additively Manufactured Engineered Cementitious Composites Beams for Durable Transportation Infrastructure https://rip.trb.org/View/2665667 Wed, 04 Feb 2026 15:30:44 GMT https://rip.trb.org/View/2665667 Use of Innovative Sustainable and Durable Materials in Concrete Pavements https://rip.trb.org/View/2479868 Thu, 19 Dec 2024 10:42:42 GMT https://rip.trb.org/View/2479868 Addressing Fly Ash Shortage with Limestone Calcined Clay Cement https://rip.trb.org/View/2196874 Thu, 15 Jun 2023 09:58:01 GMT https://rip.trb.org/View/2196874 Rapid Repair of Cracks on the Embankment Slopes Using Bio-Cement https://rip.trb.org/View/1751130 Tue, 10 Nov 2020 15:44:27 GMT https://rip.trb.org/View/1751130 Influence of Fly Ash, Slag Cement and Specimen Curing on Shrinkage of Bridge Deck Concrete https://rip.trb.org/View/1511084 Wed, 02 May 2018 11:49:24 GMT https://rip.trb.org/View/1511084 Structural Design Methodology for Spray Applied Pipe Liners in Gravity Storm Water Conveyance Conduits https://rip.trb.org/View/1456883 Wed, 22 Feb 2017 18:11:06 GMT https://rip.trb.org/View/1456883