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/ RES2023-27: Internal Project: Regional Rollout of the Super Air Meter (SAM) and Surface Resistivity (SR) for Performance Engineered Mixture Initiative https://rip.trb.org/View/2487448 Wed, 08 Jan 2025 11:39:15 GMT https://rip.trb.org/View/2487448 Next Generation Concrete Pavement Materials for Transportation Infrastructure https://rip.trb.org/View/2344523 Fri, 23 Feb 2024 16:19:45 GMT https://rip.trb.org/View/2344523 Internal Curing of 3D Printed Engineering Cementitious Composites: Paving the Way for Sustainable and Durable Infrastructure in the Southwest Climates https://rip.trb.org/View/2291297 Thu, 16 Nov 2023 17:47:48 GMT https://rip.trb.org/View/2291297 Advanced Concrete Materials for Rapid Infrastructure Repair and Rehabilitation https://rip.trb.org/View/2291295 Thu, 16 Nov 2023 17:23:51 GMT https://rip.trb.org/View/2291295 Advance and Validate Performance Engineered Mixtures (PEM) tests and procedures https://rip.trb.org/View/2085725 Fri, 16 Dec 2022 14:15:18 GMT https://rip.trb.org/View/2085725 Mobile Asphalt Testing Trailer to Deploy Performance Engineered Mix Design for Asphalt, Deploy New Tests and Technologies, and Provide National Leadership for Asphalt Pavements https://rip.trb.org/View/2062420 Tue, 15 Nov 2022 16:17:40 GMT https://rip.trb.org/View/2062420 Deployment and Implementation of Performance Engineered Mixtures for Asphalt* https://rip.trb.org/View/2062418 Tue, 15 Nov 2022 16:17:39 GMT https://rip.trb.org/View/2062418 Characterization of Regular Concrete and Low-Cost Engineered Cementitious Composites with Incorporation of Cellulose Nanoparticles and Cost- Effective Ingredients https://rip.trb.org/View/1948613 Fri, 06 May 2022 11:34:14 GMT https://rip.trb.org/View/1948613 Evaluation of Alternative Sources of Supplementary Cementitious Materials (SCMs) for Engineered Cementitious Composites in Transportation Infrastructure https://rip.trb.org/View/1948614 Fri, 06 May 2022 11:32:16 GMT https://rip.trb.org/View/1948614 Mechanistic-Based Evaluation of Performance Thresholds for Engineered Surface Asphalt Mixtures https://rip.trb.org/View/1905289 Mon, 24 Jan 2022 12:21:03 GMT https://rip.trb.org/View/1905289 Evaluation of Fresh and Hardened Properties of 3D-Printed Engineered Cementitious Composites (ECC) Designed for Sustainable and Resilient Infrastructure Systems https://rip.trb.org/View/1904962 Thu, 20 Jan 2022 13:51:39 GMT https://rip.trb.org/View/1904962 Resilient 3D-Printed Infrastructure with Engineered Cementitious Composites (ECC) https://rip.trb.org/View/1751182 Wed, 11 Nov 2020 09:44:47 GMT https://rip.trb.org/View/1751182 Development of Novel Ultra-High Performance Engineered Cementitious Composites (UHP-ECC) for Durable and Resilient Transportation Infrastructure https://rip.trb.org/View/1751126 Tue, 10 Nov 2020 15:24:11 GMT https://rip.trb.org/View/1751126 Developing Alternative Aircraft Arresting Systems https://rip.trb.org/View/1729493 Tue, 18 Aug 2020 10:22:57 GMT https://rip.trb.org/View/1729493 Engineered Geopolymer Composites (EGC) for Sustainable Transportation Infrastructure https://rip.trb.org/View/1642178 Fri, 02 Aug 2019 06:30:37 GMT https://rip.trb.org/View/1642178