Mechanical Properties of Reproduced Historic Mosaic Mortar

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00350887" target="_blank" >RIV/68407700:21110/21:00350887 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21720/21:00350887 RIV/68378297:_____/21:00546481

Výsledek na webu

<a href="https://www.scientific.net/SSP.325.86.pdf" target="_blank" >https://www.scientific.net/SSP.325.86.pdf</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical Properties of Reproduced Historic Mosaic Mortar

Popis výsledku v původním jazyce

Mortars containing linseed oil as admixture to lime were identified in several mosaics found in Czech Republic. These mosaics were made around 1900 and the composition of their bedding mortar was likely influenced by publication La Mosaïque by E. Gerspach [1], published in Paris, 1880. The recipe for lime mortar with linseed oil and stand oil has been reproduced within the present paper in order to evaluate the effect of mortar composition to its mechanical properties and rate of setting. Four mixes were prepared with varying oil/stand oil content (below, above and according to Gerspach’s recommendation). The primary motivation of mosaic artists to use oil admixture was to keep the mortar’s plasticity for longer time, what is beneficial for the mosaic tesseraes (stones) adjustment. This effect was quantified by help of Vicat apparatus. The influence of oils on mechanical properties and carbonation was evaluated at 28 days. It was found by XRD, that the rate of carbonation is reduced due to the oil presence. It is caused by fact that the oil acts also as water-repealing admixture what reduces the ability of aerial CO2 to dissolve in pore solution and react with lime. The deformation behavior of material has been modified by oil toward the higher toughness, but lower compressive strength, due to polymeration of oil in mortar.

Název v anglickém jazyce

Mechanical Properties of Reproduced Historic Mosaic Mortar

Popis výsledku anglicky

Mortars containing linseed oil as admixture to lime were identified in several mosaics found in Czech Republic. These mosaics were made around 1900 and the composition of their bedding mortar was likely influenced by publication La Mosaïque by E. Gerspach [1], published in Paris, 1880. The recipe for lime mortar with linseed oil and stand oil has been reproduced within the present paper in order to evaluate the effect of mortar composition to its mechanical properties and rate of setting. Four mixes were prepared with varying oil/stand oil content (below, above and according to Gerspach’s recommendation). The primary motivation of mosaic artists to use oil admixture was to keep the mortar’s plasticity for longer time, what is beneficial for the mosaic tesseraes (stones) adjustment. This effect was quantified by help of Vicat apparatus. The influence of oils on mechanical properties and carbonation was evaluated at 28 days. It was found by XRD, that the rate of carbonation is reduced due to the oil presence. It is caused by fact that the oil acts also as water-repealing admixture what reduces the ability of aerial CO2 to dissolve in pore solution and react with lime. The deformation behavior of material has been modified by oil toward the higher toughness, but lower compressive strength, due to polymeration of oil in mortar.

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

Binders, Materials and Technologies in Modern Construction VII

ISBN

9783035718706

ISSN

1012-0394

e-ISSN

—

Počet stran výsledku

6

Strana od-do

86-91

Název nakladatele

Trans Tech Publications Ltd

Místo vydání

Durnten-Zurich

Místo konání akce

Brno

Datum konání akce

3. 12. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—