diplomska naloga
Primož Novak (Author), Violeta Bokan-Bosiljkov (Mentor), Janko Logar (Thesis defence commission member), Tomo Cerovšek (Thesis defence commission member)

Abstract

Lastnosti apnenih ometov nanešenih na kamnit zid kapele gradu Črnelo

Keywords

gradbeništvo;UNI;diplomska dela;apnena malta;apneni omet;apnena fasada;fini omet;grobi omet;konsistenca;tlačna trdnost;vodovpojnost;

Data

Language: Slovenian
Year of publishing:
Source: Ljubljana
Typology: 2.11 - Undergraduate Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: [P. Novak]
UDC: 693.611:692.22(497.4)(043.2)
COBISS: 5673569 Link will open in a new window
Views: 3260
Downloads: 789
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Other data

Secondary language: English
Secondary title: Properties of lime renders applied to stone masonry wall of the Črnelo castle chapel
Secondary abstract: In the diploma work a research about the properties of the new lime renders applied to historical building was carried out. The emphasis of the research work was on the analysis of five samples of lime façade systems that were applied to a 258-year old stone-masonry wall of the Črnelo castle chapel. Along with the in-situ tests also laboratory tests were carried out. The façade samples were composed of rough render layer (the first layer), fine render layer and of coloured lime wash applied to all façade samples. The samples of rough and fine renders differ only in the binder - aerial limes of various Slovene manufacturers were used, together with the calcareous crushed sands with different maximum sizes of aggregate (4 or 1 mm), which were the same for all samples. In the framework of in-situ tests, first properties of lime mortars connected with workability and casting of the renders were evaluated. This was done with the help of experienced masons, who applied the renders on the wall. On the hardened samples water absorption at low pressure and the depth of carbonisation of the samples of the rough renders were measured, along with the visual examinations of renders in order to detect damages due to freezing and thawing. The laboratory tests encompassed determination of flow value and density of fresh lime mortars, and compressive strength, shrinkage and water absorption of the hardened mortars. Based on the analysis of obtained results, a conclusion can be made that for high quality of lime facades several conditions have to be fulfilled. The execution of layers has to be done in adequate weather conditions, on an adequately prepared surface of masonry wall, lime putty has to be used as binder, enough time has to be given to the separate layers to harden (at least four months for the rough render), and most of all, expertise achieved with years of practical work in the field of lime based mortars and renders is important.
Secondary keywords: graduation thesis;lime mortar;lime render;lime facade;fine render;rough render;consistency;compressive strength;water absorption;
File type: application/pdf
Type (COBISS): Undergraduate thesis
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: IX, 70 str.
Type (ePrints): thesis
Title (ePrints): Properties of Lime Renders Applied to Stone Masonry Wall of the Črnelo Castle Chapel
Keywords (ePrints): apnena malta;apneni omet;apnena fasada;fini omet;grobi omet;konsistenca;tlačna trdnost;vodovpojnost
Keywords (ePrints, secondary language): lime mortar;lime render;lime façade;fine render;rough render;consistency;compressive strength;water absorption
Abstract (ePrints): V okviru diplomske naloge sem raziskoval lastnosti novih apnenih fasadnih ometov na kulturno zgodovinskem objektu. Poudarek preiskav je bil na terenskih analizah petih vzorcev apnenih fasadnih ometov, nanesenih na 258 let star kamnit zid kapelice gradu Črnelo. Vzporedno s terenskimi so potekale tudi laboratorijske preiskave. Vzorec fasadnega ometa je bil sestavljen iz vzorca grobega ometa (prvi sloj), vzorca finega ometa (zaključni sloj) in enakega apnenega premaza (barva) čez vse vzorce fasadnega ometa. Vzorci so se razlikovali le v vezivu - uporabili smo zračna apna različnih slovenskih proizvajalcev, apnenčev pesek in mivka, pa sta bila enaka za vse vzorce. Na terenu smo, s pomočjo izkušenih zidarskih mojstrov, ki so omete nanašali na zid, ocenjevali lastnosti povezane z vgradljivostjo in obdelovalnostjo ometov, na strjenih vzorcih ometov pa smo merili vodovpojnost pri nizkem pritisku, globino karbonatiziranosti vzorcev grobih ometov in vršili vizualne preglede poškodb ometov zaradi zmrzovanja/tajanja. Laboratorijske preiskave so obsegale preiskave razleza in prostorninske mase na svežih apnenih maltah ter trdnosti, krčenja in vpijanja vode s kapilarnim srkom na strjenih maltah. Za potrebe tlačnega preizkusa vzorcev finih malt je bila v okviru naloge razvita metoda priprave prizmic. Na podlagi analize dobljenih rezultatov preiskav lahko zaključim, da je za kakovostno izdelavo apnenih ometov potrebno izdelovati le-te v primernih klimatskih pogojih, na dobro pripravljeno podlago, za vezivo uporabiti apno v obliki apnenega testa, nameniti dovolj časa strjevanju posameznega sloja (najmanj 4 mesece za grobi omet), predvsem pa je pomembna praksa, ki jo pridobiš z večletnimi izkušnjami z delom na terenu.
Abstract (ePrints, secondary language): In the diploma work a research about the properties of the new lime renders applied to historical building was carried out. The emphasis of the research work was on the analysis of five samples of lime façade systems that were applied to a 258-year old stone-masonry wall of the Črnelo castle chapel. Along with the in-situ tests also laboratory tests were carried out. The façade samples were composed of rough render layer (the first layer), fine render layer and of coloured lime wash applied to all façade samples. The samples of rough and fine renders differ only in the binder - aerial limes of various Slovene manufacturers were used, together with the calcareous crushed sands with different maximum sizes of aggregate (4 or 1 mm), which were the same for all samples. In the framework of in-situ tests, first properties of lime mortars connected with workability and casting of the renders were evaluated. This was done with the help of experienced masons, who applied the renders on the wall. On the hardened samples water absorption at low pressure and the depth of carbonisation of the samples of the rough renders were measured, along with the visual examinations of renders in order to detect damages due to freezing and thawing. The laboratory tests encompassed determination of flow value and density of fresh lime mortars, and compressive strength, shrinkage and water absorption of the hardened mortars. Based on the analysis of obtained results, a conclusion can be made that for high quality of lime facades several conditions have to be fulfilled. The execution of layers has to be done in adequate weather conditions, on an adequately prepared surface of masonry wall, lime putty has to be used as binder, enough time has to be given to the separate layers to harden (at least four months for the rough render), and most of all, expertise achieved with years of practical work in the field of lime based mortars and renders is important.
Keywords (ePrints, secondary language): lime mortar;lime render;lime façade;fine render;rough render;consistency;compressive strength;water absorption
ID: 8312008