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/ Quantifying Impact of Soil Strength Degradation on Long-term Slope Stability https://rip.trb.org/View/2703925 Tue, 19 May 2026 13:42:12 GMT https://rip.trb.org/View/2703925 Feasibility Study of Zinc Diethyldithiocarbamate (ZDC) Modified Asphalt Mixture for Enhanced Safety through Improved Aging Resistance in Asphalt Pavement https://rip.trb.org/View/2703922 Tue, 19 May 2026 13:37:20 GMT https://rip.trb.org/View/2703922 Construction & Early Performance of Rapid Strength Cement Concrete Mixture in MnROAD Test Cell 2437 https://rip.trb.org/View/2703791 Fri, 15 May 2026 16:40:13 GMT https://rip.trb.org/View/2703791 Friction Characterization/Classification of Maryland Asphalt Mixes using Dynamic Friction Testing and Three Wheel Polishing Machine https://rip.trb.org/View/2701240 Wed, 13 May 2026 09:27:06 GMT https://rip.trb.org/View/2701240 Use of Stainless-Steel Bridge Bearings for Steel Girder Bridges https://rip.trb.org/View/2701238 Wed, 13 May 2026 09:16:27 GMT https://rip.trb.org/View/2701238 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 Effects of Target Air Voids on Hot Mix Asphalt (HMA) Performance Tests https://rip.trb.org/View/2698280 Fri, 01 May 2026 09:19:25 GMT https://rip.trb.org/View/2698280 Determination of Test Methods to Quantify the Effects of Organic and Inorganic Constituents in Silica Sand Used for Construction https://rip.trb.org/View/2698276 Fri, 01 May 2026 07:34:22 GMT https://rip.trb.org/View/2698276 Development and Optimization of Biochar-Infused Self-Heating Concrete for Bridge Deck Deicing, Strength, and Service Life https://rip.trb.org/View/2696157 Mon, 27 Apr 2026 19:56:12 GMT https://rip.trb.org/View/2696157 Evaluation of Hollow-Core UHPC-Steel Columns with UHPC Socketed Connection https://rip.trb.org/View/2696153 Mon, 27 Apr 2026 19:42:50 GMT https://rip.trb.org/View/2696153 Dynamic Behavior of Repairable and Constructible Precast Bridge Columns https://rip.trb.org/View/2696149 Mon, 27 Apr 2026 19:35:52 GMT https://rip.trb.org/View/2696149 Performance Evaluation and Structural Optimization of Fiber-Reinforced Asphalt Concrete (FRAC) for Pothole Repair and Roadway Resilience https://rip.trb.org/View/2696034 Sat, 25 Apr 2026 12:33:24 GMT https://rip.trb.org/View/2696034 Development of Multifunctional Cementitious Composites with Tailored Pore Structures for Intelligent Infrastructure Applications https://rip.trb.org/View/2696035 Sat, 25 Apr 2026 12:31:31 GMT https://rip.trb.org/View/2696035 Nanoscale Wear Mechanics-driven Durable Tire Design https://rip.trb.org/View/2696033 Sat, 25 Apr 2026 12:25:11 GMT https://rip.trb.org/View/2696033 Corrosion Resistance of Using Very High Strength Steel Reinforcing Bars in Reinforced Concrete Beams– An Experimental and Analytical Approach https://rip.trb.org/View/2694443 Thu, 23 Apr 2026 18:10:34 GMT https://rip.trb.org/View/2694443