Počet záznamů: 1
Analytical techniques for detection of oil presence in mortar
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SYSNO ASEP 0543691 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Analytical techniques for detection of oil presence in mortar Tvůrce(i) Bauerová, P. (CZ)
Reiterman, P. (CZ)
Mácová, Petra (UTAM-F) RID, SAI, ORCID
Slížková, Zuzana (UTAM-F) RID, SAI, ORCID
Havelcová, Martina (USMH-B) RID, ORCID
Mahun, Andrii (UMCH-V) ORCID
Švarcová, Silvie (UACH-T) SAI, RID, ORCID
Keppert, M. (CZ)Celkový počet autorů 8 Zdroj.dok. Key Engineering Materials, 898. - Zürich : Trans Tech Publications, 2021 / Mészárosová L. - ISSN 1662-9795 - ISBN 978-3-0357-1810-2 Rozsah stran s. 57-65 Poč.str. 9 s. Forma vydání Tištěná - P Akce Conference on rehabilitation and reconstruction of buildings (CRRB 2020) /22./ Datum konání 19.11.2020 - 19.11.2020 Místo konání Brno Země CZ - Česká republika Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova lime mortar ; oil ; solid state NMR ; FTIR ; gas chromatography ; thermal analysis Vědní obor RIV AL - Umění, architektura, kulturní dědictví Obor OECD Materials engineering Vědní obor RIV – spolupráce Ústav makromolekulární chemie - Makromolekulární chemie Institucionální podpora UTAM-F - RVO:68378297 ; UMCH-V - RVO:61389013 ; USMH-B - RVO:67985891 ; UACH-T - RVO:61388980 EID SCOPUS 85115218445 DOI 10.4028/www.scientific.net/KEM.898.57 Anotace Oils, e.g. linseed oil, has been used as mortar admixtures or components of lime-oil mastic since ancient times. The reason was either to increase the mortar durability and/or to prolong the mortar/mastic workability. Historic mortars are conventionally analyzed by means of X-ray diffraction and thermal analysis, but these methods are not able to detect the organic compounds directly. The goal of the present research was to evaluate the applicability of thermal analysis, infrared spectroscopy, solid state NMR spectroscopy and gas chromatography for detection and possible quantification of linseed oil in prepared mortar containing, beyond the oil, just lime and calcite. Both applied spectroscopies were able not only detect the presence of oil but may be used also for study of the oil chemical transformation in the alkaline environment of the lime mortar. Thermal analysis is not able to identify kind of organic admixture, but when it is known that it is e.g. linseed oil, its quantification by help of Evolved Gas Analysis is very good. The results of gas chromatography of mortar’s extract are affected by the polymerization of oil in mortar. The total organic content analysis is providing good information about the total amount of organics in mortar. There in not any single method, which could provide all information about the oil admixture in mortar (kind of oil, content of oil, fate of oil after mortar’s mixing) by itself, the combination of techniques must be used. Pracoviště Ústav teoretické a aplikované mechaniky Kontakt Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Rok sběru 2022 Elektronická adresa https://doi.org/10.4028/www.scientific.net/KEM.898.57
Počet záznamů: 1