Repair mortars for the Byzantine masonries restoration interventions providing earthquake protection

Moropoulou, A; Aggelakopoulou, E; Athanasiadou, K; Xatziantoniou, K; Kollias, S

dc.contributor.author	Moropoulou, A	en
dc.contributor.author	Aggelakopoulou, E	en
dc.contributor.author	Athanasiadou, K	en
dc.contributor.author	Xatziantoniou, K	en
dc.contributor.author	Kollias, S	en
dc.date.accessioned	2014-03-01T02:49:35Z
dc.date.available	2014-03-01T02:49:35Z
dc.date.issued	2003	en
dc.identifier.issn	1361617X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34619
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-2942657059&partnerID=40&md5=51edf9ff42dceed704792bdb3d1221db	en
dc.subject.other	Byzantine masonries	en
dc.subject.other	Interventions	en
dc.subject.other	Mechanical compatibility	en
dc.subject.other	Ultrasonic technique	en
dc.subject.other	Brick	en
dc.subject.other	Buildings	en
dc.subject.other	Data acquisition	en
dc.subject.other	Earthquake resistance	en
dc.subject.other	Large scale systems	en
dc.subject.other	Materials	en
dc.subject.other	Mortar	en
dc.subject.other	Pozzolan	en
dc.subject.other	Repair	en
dc.subject.other	Restoration	en
dc.subject.other	Sand	en
dc.subject.other	Thermoanalysis	en
dc.subject.other	Masonry construction	en
dc.title	Repair mortars for the Byzantine masonries restoration interventions providing earthquake protection	en
heal.type	conferenceItem	en
heal.publicationDate	2003	en
heal.abstract	The study of the behavior of Byzantine buildings that have presented excellent behavior under earthquakes, such as Hagia Sophia in Istanbul, and the church of St. Michael in Kiev can become a valuable tool for the understanding of earthquake resistant construction techniques and materials. In this work, taking into account the historic Byzantine mortar nature and characteristics, several syntheses of repair mortars addressed to Byzantine masonries are produced and evaluated, aiming to consider the mechanical compatibility to historic ones and therefore to the monuments earthquake protection. Traditional materials (aerial lime, natural pozzolana, sand and brick fragments) are used for the mortar synthesis production, according to the data obtained by the characterization of historic mortars. The produced mortars were evaluated over periods of 3 and 6 months using mechanical tests (compressive, flexural) for the determination of mechanical strength and an ultrasonic technique for the determination of the dynamic modulus of elasticity. Furthermore, thermal analyses (DTA-TG) were performed for the chemical evolution evaluation of these composite systems in time. The obtained results indicate that the lime natural pozzolana mortar presented a sufficient mechanical behavior, analogous to historic mortars, while the lime presented the lowest ratio of fc/ff, that reveals an elastic behavior. All the examined mortars seem to be in progress after 6 months of curing, a fact that is confirmed by the rate of mechanical evolution and from Ca(OH)2 conversion.	en
heal.journalName	Advances in Earthquake Engineering	en
dc.identifier.volume	13	en
dc.identifier.spage	253	en
dc.identifier.epage	260	en