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/ Use of Colloidal Silica as a Finishing Aid for Concrete Pavement https://rip.trb.org/View/2577018 Thu, 17 Jul 2025 09:02:28 GMT https://rip.trb.org/View/2577018 SPR-5024: Evaluation and Optimization of Portland Limestone Cement Concretes: Materials, Mixtures, and Performance https://rip.trb.org/View/2553992 Thu, 15 May 2025 15:57:51 GMT https://rip.trb.org/View/2553992 Evaluation of Prestressing Strand Bond with Type IL Cement https://rip.trb.org/View/2489961 Mon, 13 Jan 2025 14:35:43 GMT https://rip.trb.org/View/2489961 SPR-4908: Potential Implications of Pore Solution Composition of Type IL Cement on the Curability of Concrete https://rip.trb.org/View/2434103 Wed, 25 Sep 2024 09:26:47 GMT https://rip.trb.org/View/2434103 Residual Stress in Florida Bored Piles https://rip.trb.org/View/2353366 Mon, 03 Jun 2024 14:48:56 GMT https://rip.trb.org/View/2353366 Optimizing Cementitious Systems for Alternative Cement using Thermodynamic Modeling https://rip.trb.org/View/2344524 Fri, 23 Feb 2024 16:22:27 GMT https://rip.trb.org/View/2344524 Performance of Portland Limestone Cement and Supplementary Cementitious Materials in VDOT Concretes https://rip.trb.org/View/2266625 Sat, 14 Oct 2023 09:28:48 GMT https://rip.trb.org/View/2266625 Geomechanical and Mineralogical Properties of Limestone Samples from Kansas – Joint Project with KSU https://rip.trb.org/View/2255812 Wed, 27 Sep 2023 12:23:24 GMT https://rip.trb.org/View/2255812 Geomechanical and Mineralogical Properties of Limestone Samples from Kansas – Joint Project with KU https://rip.trb.org/View/2255809 Wed, 27 Sep 2023 12:17:19 GMT https://rip.trb.org/View/2255809 Evaluation of Portland Limestone Cement-Treated Subgrade Soils and Bases in Kansas https://rip.trb.org/View/2255786 Tue, 26 Sep 2023 17:47:15 GMT https://rip.trb.org/View/2255786 SPR-4823: Systematic Study of Type 1L Cement for Mixture Optimization and Carbon Reduction https://rip.trb.org/View/2209598 Mon, 10 Jul 2023 09:16:50 GMT https://rip.trb.org/View/2209598 Addressing Fly Ash Shortage with Limestone Calcined Clay Cement https://rip.trb.org/View/2196874 Thu, 15 Jun 2023 09:58:01 GMT https://rip.trb.org/View/2196874 Implementation of Shallow Foundations on Florida Limestone in FB-MultiPier https://rip.trb.org/View/2154940 Mon, 17 Apr 2023 15:04:01 GMT https://rip.trb.org/View/2154940 Assessment of High Early Strength Limestone Blended Cement for Next Generation Transportation Structures https://rip.trb.org/View/1474434 Fri, 14 Jul 2017 12:59:39 GMT https://rip.trb.org/View/1474434 Biocement for Road Repair https://rip.trb.org/View/1360873 Tue, 14 Jul 2015 01:01:00 GMT https://rip.trb.org/View/1360873