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/ Evaluation of Cement-Based Pavement Markings https://rip.trb.org/View/2689760 Wed, 08 Apr 2026 09:40:12 GMT https://rip.trb.org/View/2689760 Seasonal Weight Restriction Decision Making Based on Understanding and Monitoring of Frost Susceptibility of Pavement Structures https://rip.trb.org/View/2671988 Wed, 18 Feb 2026 11:28:12 GMT https://rip.trb.org/View/2671988 Improving Moisture Resistance/Control of Pavement Foundation Systems via Engineered Water Repellency https://rip.trb.org/View/2659346 Mon, 26 Jan 2026 16:09:33 GMT https://rip.trb.org/View/2659346 2503 Enhancing MALP and MKP as Repair Materials Through Joint Usage and in combination with Ceramic Paint https://rip.trb.org/View/2606541 Fri, 03 Oct 2025 12:05:58 GMT https://rip.trb.org/View/2606541 Evaluating Ballast Performance with Freeze/Thaw Cycles https://rip.trb.org/View/2573189 Mon, 14 Jul 2025 20:12:51 GMT https://rip.trb.org/View/2573189 Cryosuction and Its Role in Infrastructure Distress from Freeze-Thaw Cycles https://rip.trb.org/View/2534019 Thu, 03 Apr 2025 12:34:34 GMT https://rip.trb.org/View/2534019 Introducing Smart Materials in Granular Roadway and Pavement Foundation Systems for Mitigating Freeze-Thaw Damage https://rip.trb.org/View/2509048 0 °C) for longer which will minimize the existing and capillary water in soils to freeze and form ice lenses thereby preventing frost heave and strength loss in subgrade soils. This hypothesis will be tested via a series of state-of-the-art laboratory-scale tests under various settings, and numerical modelling. The proposed research contains three phases: (1) characterization; (2) optimization; and (3) performance. The characterization phase will determine the index and physicochemical properties of soils, PCMs, and soil-PCM mixtures while the optimization phase will determine the best inclusion method for PCMs in soils. Experiments in the performance phase will evaluate how PCM inclusion impacts the frost heave and the strength loss after freezing and thawing.]]> Wed, 12 Feb 2025 17:04:42 GMT https://rip.trb.org/View/2509048 Phase-II: Addressing Durability Concerns in Binders with Interlayer Reinforcement for 3D Printed Elements https://rip.trb.org/View/2480350 Wed, 01 Jan 2025 16:01:10 GMT https://rip.trb.org/View/2480350 Evaluating Pavement Preservation Performance in Dry Freeze and Wet Freeze Regions Using LTPP Dataset and a Questionnaire Survey https://rip.trb.org/View/2440835 Sun, 13 Oct 2024 15:53:12 GMT https://rip.trb.org/View/2440835 Performance Evaluation of HMA Treated with Hydrated Lime and Liquid Antistrip Agents https://rip.trb.org/View/2431176 Mon, 16 Sep 2024 09:35:35 GMT https://rip.trb.org/View/2431176 Using Rubber Powder to Improve Freeze/Thaw Resistance of Concrete https://rip.trb.org/View/2362122 Thu, 04 Apr 2024 10:52:12 GMT https://rip.trb.org/View/2362122 Reducing Embodied Carbon with Mineral-Blended Polymeric Microspheres https://rip.trb.org/View/2325916 Tue, 23 Jan 2024 14:20:19 GMT https://rip.trb.org/View/2325916 Durability Assessment of Binders with Interlayer Reinforcement for 3D Printed Elements https://rip.trb.org/View/2291291 Wed, 15 Nov 2023 21:53:07 GMT https://rip.trb.org/View/2291291 Freeze-Thaw Durability of Rapid-Setting Concrete https://rip.trb.org/View/2270037 Tue, 17 Oct 2023 19:10:57 GMT https://rip.trb.org/View/2270037 Utilization of Regular or Carbonized RCA for KDOT Paving https://rip.trb.org/View/2255772 Tue, 26 Sep 2023 15:50:31 GMT https://rip.trb.org/View/2255772