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/ 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 Develop and Demonstrate an Evaluation Process for Acceptance of Additives for Use in Forensic Analysis in Hot Mix Asphalt https://rip.trb.org/View/2666836 Tue, 10 Feb 2026 14:43:18 GMT https://rip.trb.org/View/2666836 Characterizing and Improving Binder Availability and Activity in Asphalt Mixtures with Reclaimed Asphalt Pavement (RAP) https://rip.trb.org/View/2625486 Sat, 15 Nov 2025 08:45:15 GMT https://rip.trb.org/View/2625486 2501 Evaluate the Performance and Consistency of BMD Mixes during Production using Rheological and Chemical Binder Testing https://rip.trb.org/View/2606534 Fri, 03 Oct 2025 11:08:00 GMT https://rip.trb.org/View/2606534 Study on Mix Design for 3D-Printable Components using Geomaterials and with CSA Cement as Binding Material https://rip.trb.org/View/2509296 Thu, 13 Feb 2025 15:07:22 GMT https://rip.trb.org/View/2509296 Sieve Analysis Procedure to Quantify Reclaimed Asphalt Pavement Binder Availability https://rip.trb.org/View/2505725 Mon, 03 Feb 2025 22:33:50 GMT https://rip.trb.org/View/2505725 Investigation of Hot Mix Asphalt Aging Effect on Mechanical Properties of Mixes Based on Their Binder Performance Results – Phase II https://rip.trb.org/View/2480360 Wed, 01 Jan 2025 17:04:48 GMT https://rip.trb.org/View/2480360 Improved Pavement Durability and Resiliency Using Balanced Mix Design with High RAP and Rejuvenator: A Path Toward Statewide Implementation https://rip.trb.org/View/2480354 Wed, 01 Jan 2025 16:15:15 GMT https://rip.trb.org/View/2480354 Phase-II: Addressing Durability Concerns in Binders with Interlayer Reinforcement for 3D Printed Elements https://rip.trb.org/View/2480350 Wed, 01 Jan 2025 16:01:10 GMT https://rip.trb.org/View/2480350 High-Polymer Asphalt Binder and Asphalt Mixture for Enhanced Durability and Cost-Effectiveness in Urban Transportation Infrastructure https://rip.trb.org/View/2475695 Fri, 20 Dec 2024 19:46:47 GMT https://rip.trb.org/View/2475695 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 Investigation of Alternative Solvents for Asphalt Extraction and Recovery https://rip.trb.org/View/2437340 Tue, 01 Oct 2024 09:52:27 GMT https://rip.trb.org/View/2437340 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