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/ In-Situ Monitoring of Concrete Early Age Strength Development Through Acoustic Resonance Technologies https://rip.trb.org/View/2689759 Wed, 08 Apr 2026 09:37:19 GMT https://rip.trb.org/View/2689759 Comparison of Sample Size and Curing time on Concrete Performance https://rip.trb.org/View/2672004 Wed, 18 Feb 2026 14:28:52 GMT https://rip.trb.org/View/2672004 Evaluating Water-Cementitious Material Ratio as Acceptance Parameter for Freshly Placed Concrete https://rip.trb.org/View/2671983 Wed, 18 Feb 2026 11:20:18 GMT https://rip.trb.org/View/2671983 Novel concretes made using supplementary cementitious materials and seawater (UM) https://rip.trb.org/View/2663226 Sat, 31 Jan 2026 11:06:52 GMT https://rip.trb.org/View/2663226 Constructability of Concrete Materials Infused With Silica-Rich Biochar For Bridge Applications https://rip.trb.org/View/2633322 Tue, 02 Dec 2025 16:36:45 GMT https://rip.trb.org/View/2633322 Overlays with Rapid Setting Cement and a Liquid Low P Admixture https://rip.trb.org/View/2587118 Sat, 09 Aug 2025 09:26:59 GMT https://rip.trb.org/View/2587118 Determining NM Harvested Fly Ash Quality for Deployment in Durable Concrete Mix https://rip.trb.org/View/2582990 Tue, 05 Aug 2025 16:28:00 GMT https://rip.trb.org/View/2582990 Investigation of Current and New Generation Cementitious and Supplementary Cementitious Materials for SCDOT Concrete https://rip.trb.org/View/2543853 Mon, 28 Apr 2025 09:11:52 GMT https://rip.trb.org/View/2543853 Performance and Use of Non-Vinsol Resin Air Entraining Concrete Admixtures in South Dakota https://rip.trb.org/View/2533745 Tue, 01 Apr 2025 08:53:57 GMT https://rip.trb.org/View/2533745 NEXTGEN Concrete - Tests of the Future: Shrinkage Phase II https://rip.trb.org/View/2529970 Fri, 28 Mar 2025 13:26:33 GMT https://rip.trb.org/View/2529970 Beam End Repair for Prestressed Concrete Beams – Phase II https://rip.trb.org/View/2509056 Wed, 12 Feb 2025 18:12:27 GMT https://rip.trb.org/View/2509056 "Cradle to Cradle" Approach to Shoreline Stabilization and Erosion Control combining Native Dredge Materials with Advanced Manufacturing https://rip.trb.org/View/2508955 Wed, 12 Feb 2025 08:43:32 GMT https://rip.trb.org/View/2508955 Feasibility Study of Local Waste Plastic Materials in Concrete https://rip.trb.org/View/2507252 Mon, 10 Feb 2025 14:17:44 GMT https://rip.trb.org/View/2507252 Performance Evaluation of the First UHPC Bridge Project in Nebraska https://rip.trb.org/View/2507243 Mon, 10 Feb 2025 11:26:57 GMT https://rip.trb.org/View/2507243 Observation, Documentation, and Performance Evaluation of Bridge Deck using Multi-Crystalline Intermixed Concrete Enhancer and Surface Sealer https://rip.trb.org/View/2506091 Thu, 06 Feb 2025 10:08:41 GMT https://rip.trb.org/View/2506091