ABSTRACT
Two approaches, however, are based on physical fundamentals. Some authors tried to establish a link between drying shrinkage and capillary action (Coussy et al. 2004, Baroghel-Bouny et al. 1999, Hua et al. 1995). An alternative approach is based on the change of surface energy and disjoining pressure as function of moisture content (Wittmann 1968, Wittmann 1973, Wittmann 1976a, Wittmann 1977, Setzer 1991, Setzer 2008, Churaev & Derjaguin 1984, Weimann & Li 2003). In the following predictions of the two different approaches shall be critically compared with experimental findings.
