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Alkali-silica reactive (ASR) gels are a distress mechanism in concrete structures. The ASR gels are formed by the reaction of alkalis from the cement with silica in certain aggregates. The gels can absorb water and swell causing the concrete to crack.
ASR gels were first discovered...
The legislation requires each State to submit a Highway Safety Improvement Program report that:
See FLH Plan Sheet Order for information regarding the order of the sheets in a plan set.
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There are many types of files in use at CFLHD. Of utmost importance is the naming convention of the OpenRoads design files produced throughout a project. The overall file naming convention is shown below, as well as types of files with extensions, used at CFLHD. The convention...
By: Mark Doctor, FHWA Resource Center; Chimai Ngo, Norah Ocel, Karen Scurry, and Jeff Shaw, FHWA Office of Safety
...The Transportation Operations Research and Development (R&D) Update was the quarterly publication of the Federal Highway Administration (FHWA) Office of Safety and Operations R&D. The update is a convenient way to learn more about transportation operations research being conducted by...
The Research & Technology Transporter was a Federal Highway Administration (FHWA) research and technology publication issued under the FHWA's Research and Technology Program. The 8–page newsletter communicated research and technology–based developments from FHWA program offices to engineers in the field and professionals in the industry. This publication ended with the September 2006 issue.