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 Water-Cementitious Material Ratio as Acceptance Parameter for Freshly Placed Concrete https://rip.trb.org/View/2671983 Wed, 18 Feb 2026 11:20:18 GMT https://rip.trb.org/View/2671983 Laboratory Evaluation of Fresh and Hardened Concrete Comprising Type IP Portland-Pozzolan Cement https://rip.trb.org/View/2263680 Fri, 06 Oct 2023 16:55:08 GMT https://rip.trb.org/View/2263680 SPR-4418: Development of In-situ Sensing Method for Monitoring of Water-cement (W/C) Values and the Effectiveness of Curing of Concrete https://rip.trb.org/View/1665585 Thu, 07 Nov 2019 16:35:56 GMT https://rip.trb.org/View/1665585 Development of Rapid PCC Pavement Repair Materials and Construction Techniques https://rip.trb.org/View/1364462 Sat, 08 Aug 2015 01:01:20 GMT https://rip.trb.org/View/1364462