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/ Recycling Large-Scale 3 D-Printed Polymer Composite Precast Concrete Forms (2.18) https://rip.trb.org/View/1994577 Fri, 15 Jul 2022 15:08:52 GMT https://rip.trb.org/View/1994577 Thermoplastic Composites by 3D Printing and Automated Manufacturing to Extend the Life of Transportation Facilities (2.4) https://rip.trb.org/View/1590583 Tue, 05 Mar 2019 09:58:36 GMT https://rip.trb.org/View/1590583