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/ Development Of Ultra High performance Concrete With Low-Density Flexible Fibers For Bridge Applications https://rip.trb.org/View/2633323 Tue, 02 Dec 2025 15:26:19 GMT https://rip.trb.org/View/2633323 Microstructure Analysis with X-ray CT Scan Imaging to Develop Enhanced Full-Depth Reclamation (FDR) Mixes Through Optimized Mix Design Compaction Effort https://rip.trb.org/View/2480362 Wed, 01 Jan 2025 17:15:15 GMT https://rip.trb.org/View/2480362 Drilled Shaft Imaging With 2d Ultrasonic Waveform Tomography https://rip.trb.org/View/2339973 Thu, 15 Feb 2024 13:07:15 GMT https://rip.trb.org/View/2339973 Field Evaluation of Geophysical Applications for DOTD https://rip.trb.org/View/2111935 Mon, 06 Feb 2023 12:01:35 GMT https://rip.trb.org/View/2111935 Program to Advance Computed Tomography for the Development of Reference Standards for Pipeline Anomaly Detection and Characterization https://rip.trb.org/View/2085745 Fri, 16 Dec 2022 14:15:37 GMT https://rip.trb.org/View/2085745 Determination of In-situ Rock Density and Strength with SH-Love Wave Tomography https://rip.trb.org/View/2058569 Tue, 08 Nov 2022 07:39:43 GMT https://rip.trb.org/View/2058569 Deployment of Ground Penetrating Radar and Ultrasonic Tomographer Non-Destructive Techniques for Assessment of Corrosion-Deteriorated Adjacent Prestressed Concrete Box Beams https://rip.trb.org/View/1482474 Mon, 11 Sep 2017 16:59:21 GMT https://rip.trb.org/View/1482474 Extending the Usage of High Volume Fly Ash in Concrete https://rip.trb.org/View/1318019 Fri, 01 Aug 2014 01:15:17 GMT https://rip.trb.org/View/1318019 Ultrasonic Tomography for Infrastructure Inspection https://rip.trb.org/View/1313119 Thu, 19 Jun 2014 01:00:49 GMT https://rip.trb.org/View/1313119 Imaging of Voids Beneath Bridge Bent Using Electrical Resistivity Tomography https://rip.trb.org/View/1301308 Fri, 07 Mar 2014 01:01:45 GMT https://rip.trb.org/View/1301308 Mapping Subsurface in Proximity to Newly-Developed Sinkhole Along Roadway https://rip.trb.org/View/1253629 Wed, 26 Jun 2013 01:00:21 GMT https://rip.trb.org/View/1253629 Geophysical Investigation of Seepage Associated with the Lake Sherwood Earth Fill Dam https://rip.trb.org/View/1234574 Thu, 03 Jan 2013 15:14:42 GMT https://rip.trb.org/View/1234574