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/ Determination of the Surface Oxidation of Pavement Preservation Treatments https://rip.trb.org/View/2761616 Mon, 17 Aug 2026 11:05:30 GMT https://rip.trb.org/View/2761616 Evaluate Standard vs Blended PG Binders Performance in NM https://rip.trb.org/View/2704031 Wed, 20 May 2026 11:10:25 GMT https://rip.trb.org/View/2704031 Field Friction Testing https://rip.trb.org/View/2672003 Wed, 18 Feb 2026 14:27:59 GMT https://rip.trb.org/View/2672003 Use of FTIR Analysis to Verify Chemical Composition of Asphalt Binder https://rip.trb.org/View/2672002 Wed, 18 Feb 2026 14:25:03 GMT https://rip.trb.org/View/2672002 SPR-4912: Development of Level 1 Binder Property Input for AASHTO Pavement ME Design https://rip.trb.org/View/2444792 Wed, 23 Oct 2024 10:27:14 GMT https://rip.trb.org/View/2444792 2500 Asphalt Binder Test (ABT) for Quick Performance Grade of Asphalt Binder https://rip.trb.org/View/2434205 Thu, 26 Sep 2024 16:16:09 GMT https://rip.trb.org/View/2434205 Evaluation of AC Binder Testing Results for Sensitivity to Kentucky Ideal-CT Test Results https://rip.trb.org/View/2417064 Mon, 12 Aug 2024 13:26:30 GMT https://rip.trb.org/View/2417064 The Utilization of Waster Plastic as a Polymer Modifier for Asphalt Binders https://rip.trb.org/View/2387099 Mon, 03 Jun 2024 14:46:17 GMT https://rip.trb.org/View/2387099 Investigation of Hot Mix Asphalt Aging Effect on Mechanical Properties of Mixes Based on Their Binder Performance Results https://rip.trb.org/View/2265859 Sat, 14 Oct 2023 07:29:14 GMT https://rip.trb.org/View/2265859 Development of a Refined Superpave Binder Purchase Specification https://rip.trb.org/View/2085721 Fri, 16 Dec 2022 14:15:16 GMT https://rip.trb.org/View/2085721 Assessing Presence and Impact of REOB (Recycled Engine Oil Bottoms) on Asphalt (1.19) https://rip.trb.org/View/1994174 Fri, 15 Jul 2022 14:34:14 GMT https://rip.trb.org/View/1994174 Evaluation of Saturates/Aromatics/Resins/Asphaltenes (SARA) Fractionation of Asphalt Binders in Louisiana https://rip.trb.org/View/1981518 Mon, 13 Jun 2022 12:07:17 GMT https://rip.trb.org/View/1981518 Effectiveness of Sustainable Asphalt Recycling Agents https://rip.trb.org/View/1978015 Thu, 09 Jun 2022 15:25:35 GMT https://rip.trb.org/View/1978015 Evaluations of FHWA Research & Technology Program Projects. Evaluation of the Asphalt Binder Quality Tester (TFPE-01) https://rip.trb.org/View/1957072 Fri, 27 May 2022 12:41:07 GMT https://rip.trb.org/View/1957072 Prediction of Moisture Resistance of Polymeric Asphalt Binders Through the Atomic Force Microscopy (AFM) Technique https://rip.trb.org/View/1948642 Fri, 06 May 2022 12:23:32 GMT https://rip.trb.org/View/1948642