Analytical Techniques for Detection of Oil Presence in Mortar

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00350886" target="_blank" >RIV/68407700:21110/21:00350886 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21720/21:00350886 RIV/61388980:_____/21:00543691 RIV/61389013:_____/21:00543691 RIV/67985891:_____/21:00543691 RIV/68378297:_____/21:00543691

Výsledek na webu

<a href="https://doi.org/10.4028/www.scientific.net/KEM.898.57" target="_blank" >https://doi.org/10.4028/www.scientific.net/KEM.898.57</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.898.57" target="_blank" >10.4028/www.scientific.net/KEM.898.57</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analytical Techniques for Detection of Oil Presence in Mortar

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Analytical Techniques for Detection of Oil Presence in Mortar

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA18-13525S" target="_blank" >GA18-13525S: Malty moderních mozaik pod drobnohledem - metody pro materiálovou charakterizaci a studium degradace</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Rehabilitation and Reconstruction of Buildings IV

ISBN

9783035718102

ISSN

1013-9826

e-ISSN

1662-9795

Počet stran výsledku

9

Strana od-do

57-65

Název nakladatele

Trans Tech Publications Ltd

Místo vydání

Durnten-Zurich

Místo konání akce

Brno

Datum konání akce

19. 11. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—