Accession Number : AD0675726

Title :   MOISTURE EQUILIBRIUM AND MIGRATION IN BUILDING MATERIALS.

Descriptive Note : Technical paper,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF BUILDING RESEARCH

Personal Author(s) : Sereda,P. J. ; Hutcheon,N. B.

Report Date : AUG 1965

Pagination or Media Count : 19

Abstract : Factors influencing the moisture content of a variety of building materials in equilibrium with their thermal and moisture environments are discussed. Reference is made to forces potentials, energies, pore structure, surface area, and hysteresis. The usefulness of the suction concept in dealing with moisture at conditions close to saturation and of the relationship of the suction scale to relative humidity is discussed. The second part of the paper introduces a discussion of moisture migration under isothermal steady-state conditions, and indicates the complications inherent in the nonisothermal case. (Author)

Descriptors :   (*BUILDINGS, CONSTRUCTION MATERIALS), (*CONSTRUCTION MATERIALS, MOISTURE), HYSTERESIS, HUMIDITY, CONVECTION(HEAT TRANSFER), ADSORPTION, EQUATIONS, CURVE FITTING, SORPTION, STRENGTH(PHYSIOLOGY), POROSITY, FIRE SAFETY, CONSTRUCTION, CANADA

Subject Categories : Ceramics, Refractories and Glass
      Construction Equipment, Materials & Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE