Počet záznamů: 1
Conservation and restoration of historic mortars and masonry structures
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SYSNO ASEP 0584465 Druh ASEP M - Kapitola v monografii Zařazení RIV C - Kapitola v knize Název Characterization of historic mortars related to the possibility of their radiocarbon dating, Mikulčice and Pohansko archaeological sites Tvůrce(i) Kozlovcev, Petr (UTAM-F) SAI, ORCID, RID
Kotková, Kristýna (UTAM-F) ORCID, RID, SAI
Frankeová, Dita (UTAM-F) RID, SAI, ORCID
Válek, Jan (UTAM-F) ORCID, SAI, RID
Viani, Alberto (UTAM-F) RID, ORCID, SAI
Maříková-Kubková, Jana (ARU-G) RID, SAI, ORCIDCelkový počet autorů 6 Zdroj.dok. Conservation and restoration of historic mortars and masonry structures, 42. - Cham : Springer, 2023 - ISBN 978-3-031-31471-1 Rozsah stran s. 172-189 Poč.str. 18 s. Poč.výt. N Poč.str.knihy 620 Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Historic mortars ; 14C dating ; hydraulic properties ; limestone raw material ; Mikulčice and Pohansko Obor OECD Materials engineering Institucionální podpora UTAM-F - RVO:68378297 ; ARU-G - RVO:67985912 EID SCOPUS 85161920377 DOI 10.1007/978-3-031-31472-8_14 Anotace The archaeological sites of Mikulčice and Pohansko (South Moravia – the Czech Republic) belong to the oldest and the most important localities of Slavic settlement in Central Europe. A number of historic mortars sampled here were collected in order to study their composition, mortar structural characteristics and raw materials provenance. The aim of this study was not only the comparison and characterisation of the historical mortars from these archaeological sites, but we also evaluated the suitability of these mortars to be dated by 14C analysis. The samples were characterised by several analytical techniques as polarised light and scanning electron microscopy, thermal analyses or quantitative X-ray diffraction. Stable isotope analyses and cathodoluminescence were also performed. The collected mortars contained a considerable amount of lime particles that can adversely affect the possibility of 14C radiocarbon dating. According to the results of the analyses, the samples from both localities had a similar character. Mortars were very rich in the binder and contained unburnt limestone fragments that occurred frequently. Unburnt fragments were classified mostly as a micritic limestone contained bioclastic fragments. This material was determined as Ernstbrunn limestones according to the composition and structure. Stable isotope analysis also suggested that all studied lime samples came from a single source. The presence of geogenic carbonates (not fully burnt lime) affects the resulting 14C age of the analysed samples fundamentally. The character of mortars leads to a discussion on how to adapt the separating procedures of the individual fractions and avoid geogenic carbon contamination. Pracoviště Ústav teoretické a aplikované mechaniky Kontakt Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Rok sběru 2024 Elektronická adresa https://doi.org/10.1007/978-3-031-31472-8_14
Počet záznamů: 1