ABSTRACT
Many severe durability problems in building are related to moisture. In many cases, one can distinguish a critical moisture content, above which durability problems occur, and below which problems are small. In other cases, moisture in the material determines the rate of destruction. Examples are given in the paper on interrelations between moisture and durability. A service life prediction, therefore, often requires a calculation of the moisture level and moisture variation in the structure. This requires knowledge of material properties, both with regard to critical moisture levels, and with regard to moisture transport properties.
