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/ Roadway Foundation Cooling using Structured Foam Layers https://rip.trb.org/View/2512616 Fri, 21 Feb 2025 21:06:12 GMT https://rip.trb.org/View/2512616 Sorption, Leachability, and Transport of AFFF Impacted Concrete Materials https://rip.trb.org/View/2262779 Fri, 06 Oct 2023 17:26:31 GMT https://rip.trb.org/View/2262779 Composite Metal Foams for Impact Protection of Hazardous Material Transportation https://rip.trb.org/View/2067995 Mon, 21 Nov 2022 16:26:29 GMT https://rip.trb.org/View/2067995 SPR-4504: Development of INDOT Slab Jacking Program https://rip.trb.org/View/1747335 Tue, 27 Oct 2020 13:12:20 GMT https://rip.trb.org/View/1747335 Development of PFAS Source Differentiation Guidelines for Airports https://rip.trb.org/View/1729481 Mon, 17 Aug 2020 16:29:33 GMT https://rip.trb.org/View/1729481 RES2020-10: Guidelines for the Use of Expanded- Polystyrene (EPS) Block Geofoam as Lightweight Backfill Behind Retaining Walls https://rip.trb.org/View/1716727 Fri, 26 Jun 2020 16:27:39 GMT https://rip.trb.org/View/1716727 Fill Material at Integral End Bents https://rip.trb.org/View/1530338 Mon, 06 Aug 2018 14:53:00 GMT https://rip.trb.org/View/1530338 Alternative Aviation Fuels Fire Safety https://rip.trb.org/View/1392188 Tue, 19 Jan 2016 16:02:55 GMT https://rip.trb.org/View/1392188 In-situ Sensors for Cathodic Protection Interrelationships Modeling https://rip.trb.org/View/1371378 Fri, 09 Oct 2015 10:01:48 GMT https://rip.trb.org/View/1371378 Utilization of Biorefinery Lignins towards the Manufacture of Novel Carbon Foams https://rip.trb.org/View/1368343 Thu, 10 Sep 2015 08:59:41 GMT https://rip.trb.org/View/1368343 Material with Improved Absorption of Collision Forces for Railroad Cars https://rip.trb.org/View/1334967 Thu, 11 Dec 2014 01:00:54 GMT https://rip.trb.org/View/1334967 The Dynamic Properties of Sandwich Structures based on Metal-Ceramic Foams https://rip.trb.org/View/1299744 Thu, 20 Feb 2014 01:01:12 GMT https://rip.trb.org/View/1299744 Polyurethane Foam Infill for Fiber-Reinforced Polymer (FRP) Bridge Deck Panels https://rip.trb.org/View/1286100 Thu, 16 Jan 2014 01:00:21 GMT https://rip.trb.org/View/1286100 Structural Polyurethane Foam Infill for Fiber Reinforced Polymer Bridge Deck Panels https://rip.trb.org/View/1234376 Thu, 03 Jan 2013 15:11:23 GMT https://rip.trb.org/View/1234376 Neutralizing the Adsorptive Effects of Carbon in Fly Ash for Use in Concrete https://rip.trb.org/View/1229791 Thu, 03 Jan 2013 13:48:43 GMT https://rip.trb.org/View/1229791