Characterization of mortars from Romanesque floors excavated in St. Bartholomew’s church at Prague Castle

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F23%3A00574125" target="_blank" >RIV/68378297:_____/23:00574125 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985912:_____/23:00574125

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of mortars from Romanesque floors excavated in St. Bartholomew’s church at Prague Castle

Popis výsledku v původním jazyce

St. Bartholomew’s church is a part of archaeological excavations located at the Prague Castle, Czech Republic. This church stood in the center of the present Third Courtyard in the 12th – 13th centuries. Nowadays, its remains are covered with a reinforced concrete structure below the paving of the Third Courtyard and are not accessible to the public. The last archaeological survey carried out in the church area revealed two Romanesque floors placed above eachnother. Both of the floors consist of several layers similar to the layers of the Roman floor structures. Mortar samples were collected from each layer of both floors and characterized by means of different analytical techniques. A thin section of each mortar sample was prepared for optical microscopy (OP), scanning electron microscopy and energy dispersive spectroscopy (SEM-EDS). A part of each sample was gently crushed and sieved to obtain a particle fraction under 63 μm. This fraction is supposed to contain almost pure binder particles and was used for thermal analysis (TA) and X-ray diffraction analysis (XRD). During the sample crushing, lime lumps present in mortars were separated and analyzed by means of TA separately. Last parts of mortar samples were dissolved in the hydrochloric acid in order to obtain pure aggregate fraction on which particle size distribution was determined.

Název v anglickém jazyce

Characterization of mortars from Romanesque floors excavated in St. Bartholomew’s church at Prague Castle

Popis výsledku anglicky

St. Bartholomew’s church is a part of archaeological excavations located at the Prague Castle, Czech Republic. This church stood in the center of the present Third Courtyard in the 12th – 13th centuries. Nowadays, its remains are covered with a reinforced concrete structure below the paving of the Third Courtyard and are not accessible to the public. The last archaeological survey carried out in the church area revealed two Romanesque floors placed above eachnother. Both of the floors consist of several layers similar to the layers of the Roman floor structures. Mortar samples were collected from each layer of both floors and characterized by means of different analytical techniques. A thin section of each mortar sample was prepared for optical microscopy (OP), scanning electron microscopy and energy dispersive spectroscopy (SEM-EDS). A part of each sample was gently crushed and sieved to obtain a particle fraction under 63 μm. This fraction is supposed to contain almost pure binder particles and was used for thermal analysis (TA) and X-ray diffraction analysis (XRD). During the sample crushing, lime lumps present in mortars were separated and analyzed by means of TA separately. Last parts of mortar samples were dissolved in the hydrochloric acid in order to obtain pure aggregate fraction on which particle size distribution was determined.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/TL03000603" target="_blank" >TL03000603: Skryto pod povrchem. Archeologické terény Pražského hradu, jejich ochrana a prezentace v moderním světě.</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů