Rate of re-crystallization of mortar matrix monastery in Opava
•Medium construction phase was dated by
archaeologists within interval 1575-1581
of sparite formation in interior – 0,005 mm/100 years and in exterior 0,01mm/100 years
oldest construction phase is calculated to first half of 15th century.
youngest mortars were applied during reconstruction in the half of 19th century
group of samples represent cement mortars and mortars with chalcedony