Lime-based historic plasters characterization: mineralogical composition and binder to aggregate ratio

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F75081431%3A_____%2F24%3A00002816" target="_blank" >RIV/75081431:_____/24:00002816 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/24:00382497

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1742-6596/2911/1/012004" target="_blank" >https://iopscience.iop.org/article/10.1088/1742-6596/2911/1/012004</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Lime-based historic plasters characterization: mineralogical composition and binder to aggregate ratio

Popis výsledku v původním jazyce

Preserving historic buildings requires renovation using compatible plasters that closely resemble the original ones. However, achieving this likeness requires a thorough characterization of the original plaster. This article explores the challenges of characterizing historic lime-based plasters from two architecturally interesting buildings in the Czech Republic dating back to the first half of the 20th century. Key issues include the determination of the binder-to-aggregate ratio, the fine aggregate particle size distribution, the mineralogical composition, and the degree of lime plaster carbonation. Experimental methods include X-ray diffraction analysis (XRD), pH-value determination, hydrochloric acid dissolution of binder components, sieve analysis, thermogravimetric analysis (TG), and differential scanning calorimetry (DSC). The tested plasters are compared, and the effectiveness of various approaches is evaluated. The binder-to-aggregate ratios are approximately 1:5. The plaster from one of the buildings was almost pure (lime binder + aggregate), while the second one contained other components, such as calcium silicate hydrates, gypsum, and magnesium phases.

Název v anglickém jazyce

Lime-based historic plasters characterization: mineralogical composition and binder to aggregate ratio

Popis výsledku anglicky

Preserving historic buildings requires renovation using compatible plasters that closely resemble the original ones. However, achieving this likeness requires a thorough characterization of the original plaster. This article explores the challenges of characterizing historic lime-based plasters from two architecturally interesting buildings in the Czech Republic dating back to the first half of the 20th century. Key issues include the determination of the binder-to-aggregate ratio, the fine aggregate particle size distribution, the mineralogical composition, and the degree of lime plaster carbonation. Experimental methods include X-ray diffraction analysis (XRD), pH-value determination, hydrochloric acid dissolution of binder components, sieve analysis, thermogravimetric analysis (TG), and differential scanning calorimetry (DSC). The tested plasters are compared, and the effectiveness of various approaches is evaluated. The binder-to-aggregate ratios are approximately 1:5. The plaster from one of the buildings was almost pure (lime binder + aggregate), while the second one contained other components, such as calcium silicate hydrates, gypsum, and magnesium phases.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/DH23P03OVV012" target="_blank" >DH23P03OVV012: Obnova fasád z tvrdých omítek z 1. poloviny 20. století</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Journal of Physics: Conference Series 2911 (2024) 012004, 6th Central European Symposium on Thermophysics (CEST 2024)

ISBN

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ISSN

1742-6588

e-ISSN

1742-6596

Počet stran výsledku

6

Strana od-do

1-6

Název nakladatele

IOP science

Místo vydání

Bristol

Místo konání akce

Miskolctapolca, Maďarsko

Datum konání akce

4. 9. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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