Mohammed Mosque,Baku, Azerbaijanlimestone, UNESCO World Heritage Site, 11th century Exterior and interior restoration, vacuum preservation of minaret
Client:Administration of Baku Historic Old Town "Icheri Sheher"Project period:2010
red marked = vacuum technology. Deep stone decay at the cupola, the balcony, the stalactites and script-ribbon
The Azerbaijan limestone has very slow capillary activity and does not absorb stone strengthener by itself during flushing treatment
Vacuum treatment in segments, one by one can achieve a penetration depth of > 100 mm with silicic acid ester 520E,VKF (52 % gel deposition rate).