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/ Evaluating Polymer Concrete As A Bonding Agent in Segmental Bridge Construction https://rip.trb.org/View/2633311 Tue, 02 Dec 2025 16:04:11 GMT https://rip.trb.org/View/2633311 Role Of Grout And GFRP Slip Liner On The Circumferential Behaviour Of Retrofitted Corroded Metal Culverts https://rip.trb.org/View/2404267 Sun, 21 Jul 2024 14:59:54 GMT https://rip.trb.org/View/2404267 Validation and Update of the Sinkhole Index - Phase 2 https://rip.trb.org/View/2301360 Fri, 01 Dec 2023 13:31:47 GMT https://rip.trb.org/View/2301360 Alternative PT Tendon Strand/Filler Testing https://rip.trb.org/View/2096564 Fri, 13 Jan 2023 14:49:13 GMT https://rip.trb.org/View/2096564 Bond Performance of Post-tensioning Tendons with Corrosion Inhibitor https://rip.trb.org/View/1982731 Thu, 16 Jun 2022 08:45:15 GMT https://rip.trb.org/View/1982731 Validation and Update of the Sinkhole Index https://rip.trb.org/View/1723348 Mon, 21 Jun 2021 14:27:38 GMT https://rip.trb.org/View/1723348 Bridge Pile Repair Using Underwater Fiber-Reinforced Polymer (FRP) Sleeve and Steel Reinforced Grout https://rip.trb.org/View/1765424 Tue, 26 Jan 2021 11:54:50 GMT https://rip.trb.org/View/1765424 Determination of Micropile Connection Flexural Resistance https://rip.trb.org/View/1736406 Tue, 01 Sep 2020 13:57:07 GMT https://rip.trb.org/View/1736406 Reproducibility of High Strength Grouting and Cementitious Material Properties Used in Bridges https://rip.trb.org/View/1516278 Tue, 19 Jun 2018 14:58:14 GMT https://rip.trb.org/View/1516278 Impact of Sulfate Ion and Soft Grout on Post-Tensioned Concrete Bridges https://rip.trb.org/View/1512674 Wed, 16 May 2018 09:20:09 GMT https://rip.trb.org/View/1512674 Self-Consolidating Concrete for Connecting Precast Concrete Deck Panels and I-Girders https://rip.trb.org/View/1319699 Sat, 09 Aug 2014 01:00:45 GMT https://rip.trb.org/View/1319699 SEISMIC: Seismic Performance of Precast Bridge Columns with Grouted Couplers https://rip.trb.org/View/1234194 Thu, 03 Jan 2013 15:08:19 GMT https://rip.trb.org/View/1234194