HEAT AND MOISTURE FLOW IN CONCRETE AS A FUNCTION OF TEMPERATURE

Due to temperature, reactors in operation cause heat and moisture flows in the thick walled prestressed pressure vessels. These flows were studied in three beams of concrete made with crushed limestone aggregate, and in three beams made of crushed gravel/sand aggregate. The flow phenomena were related to the structural development of the concrete by determining the amount of non-evaporatable water, the total porosity, and the pore size distribution. Local temperature and moisture conditions also influenced the technical properties. Compressive strength, changes in length due to shrinkage and contraction, thermal expansion, and thermal conductivity were determined.

  • Corporate Authors:

    National Aeronautics and Space Administration

    600 Independence Avenue, SW
    Washington, DC  United States  20546
  • Authors:
    • Hundt, J
  • Publication Date: 1978-11

Media Info

  • Pagination: 214 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00191197
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-TM-75286
  • Contract Numbers: NASW-3199
  • Files: TRIS
  • Created Date: May 11 1979 12:00AM