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https://nap.nationalacademies.org/catalog/27432/critical-issues-in-transportation-for-2024-and-beyond

Improving Specifications to Resist Frost Damage in Modern Concrete Mixtures

The goal of the research is to produce improved specifications, and test methods; while, improving the understanding of the underlying mechanisms of frost damage. Specifically, this work will seek to develop new test procedures that may be faster and/or more reliable than the existing methods. The objectives of this project are to: determine the necessary properties of the air-void system to provide satisfactory frost durability in laboratory testing of laboratory and field concretes with different combinations of admixtures, cements, and mixing temperatures in salt environments; (2) determine the accuracy of a simple field test method that measures air void system quality with field and laboratory concrete; (3) determine the critical combinations of absorption and the critical degree of saturation on the frost durability in accelerated laboratory testing in the presence of deicer salts; and (4) establish new test methods and specifications for fresh and hardened concrete to determine frost durability and field performance. Understanding the research on freeze-thaw mechanisms is important for two main groups: practicing professionals and graduating undergraduate and graduate students. A portion of this project will be dedicated to development of a strong educational technology transfer program. Develop a short course that utilizes streaming video (and could be placed on a DVD for widespread dissemination). Practicing professionals frequently require information in a short time frame to respond to practice-based problems. The DVD/streaming video approach provides the information as it is needed and as such it is perfect for this application.

Language

  • English

Project

Subject/Index Terms

Filing Info

  • Accession Number: 01590710
  • Record Type: Research project
  • Source Agency: Federal Highway Administration
  • Contract Numbers: TPF-5(297), OK 30802(04)
  • Files: RIP, USDOT, STATEDOT
  • Created Date: Feb 22 2016 12:12PM