Moisture migration in concrete
McDonald, J. E. (James E.)
Technical reportAbstract: In an effort to obtain information regarding the nature of moisture movement and rate of moisture loss in a pre-stressed concrete reactor vessel (PCRV), an experimental study of moisture migration in a pie-shaped specimen representing the flow path through a cylindrical wall of a PCRV was initiated. After casting of the test specimen, temperature distribution, shrinkage, and moisture distribution were monitored for approximately 510 days. After this initial monitoring, a temperature difference of 80°F was applied to the specimen, and the above mentioned measurements were continued for an additional test period of one year. Results indicate that moisture migration in thick sections of concrete, such as a PCRV, is a slow process and is not likely to be a significant factor with temperature differences of 80°F or less.
Concrete Laboratory (U.S.)Engineer Research and Development Center (U.S.)
Concrete reactor vessels; Moisture movement; Nuclear reactor containment; Reinforced concrete
Technical report (U.S. Army Engineer Waterways Experiment Station) ; C-75-1.
Approved for public release; distribution is unlimited.