详情

Improving Specifications to Resist Frost Damage in Modern Concrete Mixtures

项目名称：	Improving Specifications to Resist Frost Damage in Modern Concrete Mixtures
摘要：	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.
状态：	Completed
资金：	1237500
资助组织：	Federal Highway Administration<==>Alaska Department of Transportation and Public Facilities<==>Colorado Department of Transportation<==>Connecticut Department of Transportation<==>Idaho Department of Transportation<==>Illinois Department of Transportation<==>Indiana Department of Transportation<==>Iowa Department of Transportation<==>Kansas Department of Transportation<==>Michigan Department of Transportation<==>Minnesota Department of Transportation<==>Nebraska Department of Transportation<==>North Dakota Department of Transportation<==>Pennsylvania Department of Transportation<==>Wisconsin Department of Transportation<==>Rhode Island Department of Transportation<==>Oklahoma Transportation<==>New York State Department of Transportation<==>New Jersey Department of Transportation
项目负责人：	Curb, Ron
开始时间：	20140501
实际结束时间：	20190901
主题领域：	Data and Information Technology；Highways；Maintenance and Preservation；Pavements