In-situ in laboratorijske preiskave historičnih malt

diplomska naloga

Nuša Černe (Avtor), Violeta Bokan-Bosiljkov (Mentor), Janko Logar (Član komisije za zagovor), Janez Žmavc (Član komisije za zagovor), Petra Štukovnik (Komentor)

Povzetek

Ključne besede

gradbeništvo;UNI;historične malte;karakterizacija;kulturna dediščina;3D optična mikroskopija;neporušna metoda;kristalizacija soli;biodegradacija;

Podatki

Jezik:	Slovenski jezik
Leto izida:	2012
Izvor:	Ljubljana
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik:	[N. Černe]
UDK:	69.059.4:691.53:726.54(043.2)
COBISS:	5842529
Št. ogledov:	1975
Št. prenosov:	592
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	In-situ and laboratory analysis of historical mortars
Sekundarni povzetek:	In my diploma work I studied adequate approach to cultural heritage buildings in the case of reconstruction and/or restoration works. The focus was on historical mortars and renders and plasters. I chose the Church of St. Three Kings as an example of historical building. First on-site investigation was carried out with the help of in-situ non-destructive techniques (visual examination, damage analysis with optical microscopy) which are in case of protected and valued historic and cultural buildings often the only possible way of studying building materials. In the next step we took samples from already heavily damaged areas of renders and plasters and from the building surroundings for which we assumed that they represent the primary building materials of the church. They were later on transformed into laboratory samples - thin sections or powder samples. On the thin sections the mineral composition and microstructure of the individual mortar components were determined using optical microscopy. In addition, we also identified the individual components and detected secondary phases, which may affect the degradation of the mortar or plaster or render. From the identified mineral composition and microstructure of the components the technology of the repair mortars can be determined. In addition to the Church of St. Three Kings I also dealt with Kolizej in Ljubljana. At this building the purpose of sample analysis was different because the building was already demolished. Analyses were carried out in order to complete the investigation about the characterization of mortar, brick and plaster and render, the determination of theirs physical and mechanical properties and properties of interface between mortar and brick. Such investigations provide important and helpful information about the historical building technology, the type of applied materials and the processes of material degradation. The obtained results can be used for repair of similar buildings.
Sekundarne ključne besede:	graduation thesis;historical mortars;characterization;cultural heritage;3D optical microscopy;non-destructive method;salt crystallisation;biodegradation;
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo
Komentar na gradivo:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani:	XIV, 87 str.
Vrsta dela (ePrints):	thesis
Naslov (ePrints):	In-situ and laboratory analysis of historical mortars
Ključne besede (ePrints):	historične malte;karakterizacija;kulturna dediščina;3D optična mikroskopija;neporušna metoda;kristalizacija soli;biodegradacija
Ključne besede (ePrints, sekundarni jezik):	historical mortars;characterization;cultural heritage;3D optical microscopy;non-destructive method;salt crystallisation;biodegradation
Povzetek (ePrints):	V okviru diplomske naloge sem se ukvarjala s pravilnim in celovitim pristopom k objektom kulturne dediščine v primeru obnovitvenih in/ali restavratorskih posegov. Pri tem smo se osredotočili na historične malte in omete. Kot primer historičnega objekta sem si izbrala cerkev sv. Treh kraljev. Najprej smo objekt preučili na terenu z in-situ neporušnimi metodami (vizualni pregled, analiza poškodb z optičnim mikroskopom), ki so pri zaščitenih in zgodovinsko ter kulturno vrednotenih objektih velikokrat edini možen način proučevanja gradbenih materialov. V naslednjem koraku smo na mestih večjih poškodb ometov ter iz okolice objekta odvzeli vzorce materialov, za katere smo predvidevali, da predstavljajo primarne gradbene materiale na objektu. Le-te se kasneje preoblikuje v primerne vzorce - zbruske ali praškovne vzorce. Na zbruskih smo z uporabo instrumentalnih tehnik in analitičnih orodij, kot je optična mikroskopija natančno v laboratoriju določili mineralno sestavo in mikrostrukturo posameznih komponent malte. Poleg tega smo tudi opredelili posamezne komponente in odkrili stranske faze, ki lahko vplivajo na propadanje ometa. Na podlagi ugotovljene mineralne sestave komponent preiskanih malt in njihove mikrostrukture bi lahko v nadaljevanju določili tehnologijo izdelave nadomestnih materialov za sanacijska in restavratorska dela ometov ali malt. Poleg cerkve sv. Treh kraljev pa sem obravnavala tudi Kolizej v Ljubljani. Pri tem objektu je bil namen analiz vzorcev drugačen, saj je bil objekt že porušen. Analize so bile opravljene z namenom celovitih preiskav kot so karakterizacija malte, opeke ter ometa, določanje njihovih mehanskih in fizikalnih lastnosti ter lastnosti stičnega območja med malto in opeko. S takimi preiskavami dobimo jasen vpogled v način gradnje tedanjega časa, vrsto materialov, ki so se takrat uporabljali ter postopek propadanja le-tega kar lahko uporabimo pri sanaciji podobnih objektov.
Povzetek (ePrints, sekundarni jezik):	In my diploma work I studied adequate approach to cultural heritage buildings in the case of reconstruction and/or restoration works. The focus was on historical mortars and renders and plasters. I chose the Church of St. Three Kings as an example of historical building. First on-site investigation was carried out with the help of in-situ non-destructive techniques (visual examination, damage analysis with optical microscopy) which are in case of protected and valued historic and cultural buildings often the only possible way of studying building materials. In the next step we took samples from already heavily damaged areas of renders and plasters and from the building surroundings for which we assumed that they represent the primary building materials of the church. They were later on transformed into laboratory samples - thin sections or powder samples. On the thin sections the mineral composition and microstructure of the individual mortar components were determined using optical microscopy. In addition, we also identified the individual components and detected secondary phases, which may affect the degradation of the mortar or plaster or render. From the identified mineral composition and microstructure of the components the technology of the repair mortars can be determined. In addition to the Church of St. Three Kings I also dealt with Kolizej in Ljubljana. At this building the purpose of sample analysis was different because the building was already demolished. Analyses were carried out in order to complete the investigation about the characterization of mortar, brick and plaster and render, the determination of theirs physical and mechanical properties and properties of interface between mortar and brick. Such investigations provide important and helpful information about the historical building technology, the type of applied materials and the processes of material degradation. The obtained results can be used for repair of similar buildings.
Ključne besede (ePrints, sekundarni jezik):	historical mortars;characterization;cultural heritage;3D optical microscopy;non-destructive method;salt crystallisation;biodegradation
ID:	8312453