Variations de longueur de cylindres de pierre de Caen (calcaire bathonien) sous l'effet de sechage et d'humidification

Under the effect of wetting and drying, some cylinders of Bathonian limestone (of ca.30% porosity) undergo changes in length which may exceed 5 micrometres/cm. Since the length of the sample appears to increase progressively following several cycles of drying/wetting, the authors believe the phenomenon to be a process of mechanical weathering. -from English summary