Fig. 3From: On-site monitoring for better selection of stone repairs: a case studyKinetics of hydric swelling of the repair mortar and, in the inset, of the Ostermundigen Blue sandstone. Four days of immersion make the repair material swell up to 5 mm m−1. In the inset is shown the swelling of the Ostermundigen Blue sandstone. It reaches a value of 1.25 mm m−1 in only few minutes of immersionBack to article page