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 RePLAY for Mainline, Shoulders, and Rumbles, Phase II Study: Proprietary Bio-based Fog Sealer and Rejuvenator Reapplication in Clinton County https://rip.trb.org/View/2508963 Wed, 12 Feb 2025 12:00:15 GMT https://rip.trb.org/View/2508963 A New Generation of Asphalt Emulsion: Advancing Sustainable Infrastructure Solutions https://rip.trb.org/View/2475702 Mon, 16 Dec 2024 16:55:13 GMT https://rip.trb.org/View/2475702 Developing Asphalt Emulsion Based High Friction Surface Treatments (HFST) https://rip.trb.org/View/2381730 Tue, 21 May 2024 20:24:29 GMT https://rip.trb.org/View/2381730 Enhancing Durability and Sustainability of Pavement Through Full Depth Reclamation and Stabilization Using Novel Materials https://rip.trb.org/View/2270234 Fri, 20 Oct 2023 09:16:39 GMT https://rip.trb.org/View/2270234 Develop Enhanced Cold Recycling Methods and Specifications https://rip.trb.org/View/2255990 Wed, 27 Sep 2023 15:21:09 GMT https://rip.trb.org/View/2255990 Microsurfacing Experimental Feature Monitoring Project https://rip.trb.org/View/2151371 Wed, 12 Apr 2023 18:35:52 GMT https://rip.trb.org/View/2151371 Improving Freeze-thaw Resistance and Fatigue Resistance of Recycled Aggregate Concrete https://rip.trb.org/View/1902838 Tue, 11 Jan 2022 14:46:01 GMT https://rip.trb.org/View/1902838 Guidance for the Construction of Sand Seals and Ultra-thin Bonded Wearing Courses https://rip.trb.org/View/1854197 Tue, 25 May 2021 11:34:00 GMT https://rip.trb.org/View/1854197 Improving Testing Requirements in Item 300 of TxDOT Standard Specifications https://rip.trb.org/View/1802478 Wed, 03 Mar 2021 09:56:07 GMT https://rip.trb.org/View/1802478 Scientific Innovations in Micro-surfacing and Slurry Seal Mixture Design TR-755 https://rip.trb.org/View/1549927 Wed, 26 Sep 2018 14:54:03 GMT https://rip.trb.org/View/1549927 Use of Rejuvenator Prior to Chip Seal on Aged Flexible Pavement https://rip.trb.org/View/1472663 Fri, 30 Jun 2017 16:08:11 GMT https://rip.trb.org/View/1472663 Microemulsions for Enhanced Biomass Pretreatment https://rip.trb.org/View/1367961 Thu, 03 Sep 2015 14:13:31 GMT https://rip.trb.org/View/1367961 Guide Specifications for the Construction of Chip Seals and Microsurfacing https://rip.trb.org/View/1364351 Fri, 07 Aug 2015 01:01:31 GMT https://rip.trb.org/View/1364351 Performance of Asphalt Binders Modified with Polyphosphoric Acid (PPA) https://rip.trb.org/View/1348836 Fri, 03 Apr 2015 01:00:39 GMT https://rip.trb.org/View/1348836 Research for the AASHTO Standing Committee on Planning. Task 38. Supplemental Evaluation in Support of NCHRP 25-17 https://rip.trb.org/View/1346921 Thu, 19 Mar 2015 01:02:01 GMT https://rip.trb.org/View/1346921