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/ Performance of Cement-Treated Aggregate (CTA) and Full-Depth Reclamation (FDR) Bases for Semi-Rigid Pavement Design https://rip.trb.org/View/2772642 Wed, 02 Sep 2026 13:15:30 GMT https://rip.trb.org/View/2772642 Designing and Constructing Permanent Stable Foundation Layers in Areas of Sulfate Rich Soils https://rip.trb.org/View/2727387 Fri, 10 Jul 2026 16:37:15 GMT https://rip.trb.org/View/2727387 SPR-5027: Evaluation of Recycled Concrete Pavement (RCP) for Base and Subbase Layers https://rip.trb.org/View/2698666 Wed, 06 May 2026 15:26:33 GMT https://rip.trb.org/View/2698666 Ladle Furnace Slag Properties When Blended with Dolomitic Underutilized Quarry Materials https://rip.trb.org/View/2677554 Wed, 04 Mar 2026 09:16:47 GMT https://rip.trb.org/View/2677554 Hydraulic Conductivity of Base Course Material, Pavement Drainage, and Relation to Pavement Buckling https://rip.trb.org/View/2671989 Wed, 18 Feb 2026 11:35:36 GMT https://rip.trb.org/View/2671989 Seasonal Weight Restriction Decision Making Based on Understanding and Monitoring of Frost Susceptibility of Pavement Structures https://rip.trb.org/View/2671988 Wed, 18 Feb 2026 11:28:12 GMT https://rip.trb.org/View/2671988 Next-Generation Weather-Resistant Pavement Foundations -- High Strength and Durable Stabilized Base Courses https://rip.trb.org/View/2665668 Wed, 04 Feb 2026 15:33:49 GMT https://rip.trb.org/View/2665668 Demonstration Projects for Engineering the Foundation Layers for Long-Life Pavement Systems https://rip.trb.org/View/2663575 Mon, 02 Feb 2026 19:14:27 GMT https://rip.trb.org/View/2663575 Synthesis of Information Related to Highway Practices. Topic 57-18. Practices Related to the Use of Geosynthetics and Pavement Foundations https://rip.trb.org/View/2630496 Tue, 25 Nov 2025 16:37:41 GMT https://rip.trb.org/View/2630496 Novel Durability Screening Method for Stabilized Geomaterials https://rip.trb.org/View/2577122 Fri, 18 Jul 2025 11:51:15 GMT https://rip.trb.org/View/2577122 Holistic Design and Selection Criteria for Unbound Geomaterials Used in Pavement Systems https://rip.trb.org/View/2487314 Fri, 18 Jul 2025 10:33:35 GMT https://rip.trb.org/View/2487314 SPR-5032: Moisture Damage Control and Mitigation in Pavement Foundations Using Innovative Geosynthetics https://rip.trb.org/View/2577102 Thu, 17 Jul 2025 15:57:29 GMT https://rip.trb.org/View/2577102 Development of Cement Recycled Asphalt Base Stabilization (CRABS) Design Guide for Idaho Transportation Department https://rip.trb.org/View/2560882 Tue, 03 Jun 2025 13:15:16 GMT https://rip.trb.org/View/2560882 Base Stabilization of Iowa Granular Roads Using Recycled Plastics https://rip.trb.org/View/2509058 Wed, 12 Feb 2025 18:41:04 GMT https://rip.trb.org/View/2509058 Base Stabilization Additives – Effect on Granular Equivalency (GE), Phase II Study: Long-Term Performance Evaluation of Field Demonstration Site https://rip.trb.org/View/2441389 Mon, 14 Oct 2024 14:02:12 GMT https://rip.trb.org/View/2441389