Micro-Raman spectroscopy investigation of the carbonation reaction in a lime paste produced with a traditional technology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F16%3A00460017" target="_blank" >RIV/68378297:_____/16:00460017 - isvavai.cz</a>

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1002/jrs.4929/full" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/jrs.4929/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/jrs.4929" target="_blank" >10.1002/jrs.4929</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Micro-Raman spectroscopy investigation of the carbonation reaction in a lime paste produced with a traditional technology

Popis výsledku v původním jazyce

Micro-Raman spectroscopy has been used to follow the carbonation reaction up to 16weeks in lime paste produced with a traditional technology and cured under controlled conditions. The transformation of calcium hydroxide into calcium carbonate was visualised using Raman Imaging. Calcite was the only crystalline CaCO3 polymorph detected under the conditions of the experiment. Three sharp zones of pure portlandite (Ca(OH)2), partially carbonated portlandite and calcite (CaCO3), could be distinguished. Amorphous calcium carbonate was determined within the carbonation front. The carbonation rate was found to be higher between first and second week of ageing. After this time, the rate was continuously decreasing until full carbonation was achieved. Results have been compared with those obtained from quantitative phase analysis with X-rays powder diffraction. The proposed approach allows for a highly accurate description of the carbonation process in traditional lime-based systems. In general, it can be applied to assess the effectiveness of treatments with inorganic agents promoting carbonation, and aimed at the conservation of cultural heritage objects

Název v anglickém jazyce

Micro-Raman spectroscopy investigation of the carbonation reaction in a lime paste produced with a traditional technology

Popis výsledku anglicky

Micro-Raman spectroscopy has been used to follow the carbonation reaction up to 16weeks in lime paste produced with a traditional technology and cured under controlled conditions. The transformation of calcium hydroxide into calcium carbonate was visualised using Raman Imaging. Calcite was the only crystalline CaCO3 polymorph detected under the conditions of the experiment. Three sharp zones of pure portlandite (Ca(OH)2), partially carbonated portlandite and calcite (CaCO3), could be distinguished. Amorphous calcium carbonate was determined within the carbonation front. The carbonation rate was found to be higher between first and second week of ageing. After this time, the rate was continuously decreasing until full carbonation was achieved. Results have been compared with those obtained from quantitative phase analysis with X-rays powder diffraction. The proposed approach allows for a highly accurate description of the carbonation process in traditional lime-based systems. In general, it can be applied to assess the effectiveness of treatments with inorganic agents promoting carbonation, and aimed at the conservation of cultural heritage objects

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

AL - Umění, architektura, kulturní dědictví

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Raman Spectroscopy

ISSN

0377-0486

e-ISSN

—

Svazek periodika

47

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

1452-1457

Kód UT WoS článku

000389845300007

EID výsledku v databázi Scopus

2-s2.0-84964319002