Journal Published Online: 20 September 2007
Volume 4, Issue 8

Effects of Drying Conditions, Phase Transformations, and Carbonation Reactions on Measurements of Sorption Isotherms of Building Materials

CODEN: JAIOAD

Abstract

The sorption isotherm is one of the basic material properties used in hygrothermal modeling of building envelope performance. Measurement of this property is deceptively simple. Specimens are first dried and then exposed to a series of higher relative humidities to develop a curve of moisture content versus relative humidity at constant temperature. This paper discusses some confounding effects that we have observed while performing measurements on a number of common building materials. Materials studied included gypsum products, wood and wood products, and cementitious materials.

Author Information

Wilkes, Kenneth
Oak Ridge National Laboratory, Oak Ridge, Tennessee
Atchley, Jerry
Oak Ridge National Laboratory, Oak Ridge, Tennessee
Childs, Phillip
Oak Ridge National Laboratory, Oak Ridge, Tennessee
Desjarlais, Andre
Oak Ridge National Laboratory, Oak Ridge, Tennessee
Pages: 10
Price: $25.00
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Stock #: JAI100459
ISSN: 1546-962X
DOI: 10.1520/JAI100459