Water Vapour Storage Capacity of Masonry Renovation Plasters Contaminated with Chlorides

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00324779" target="_blank" >RIV/68407700:21110/18:00324779 - isvavai.cz</a>

Result on the web

<a href="http://matsc.ktu.lt/index.php/MatSc/article/view/19434" target="_blank" >http://matsc.ktu.lt/index.php/MatSc/article/view/19434</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5755/j01.ms.24.4.19434" target="_blank" >10.5755/j01.ms.24.4.19434</a>

Result language

angličtina

Original language name

Water Vapour Storage Capacity of Masonry Renovation Plasters Contaminated with Chlorides

Original language description

The effect of sodium chloride presence on the water vapour storage capacity was studied for six types of plasters designed for application in masonry restoration. Sorption isotherms were measured using a static climate chamber method. The researched materials were characterised by their bulk density, matrix density, and total open porosity. For the studied materials, measurement of chloride binding isotherms by an adsorption method was done in order to reveal their capacity to accumulate salts and relate the adsorbed water vapour to the amount of contained salt. The experimental sorption data measured for salt contaminated samples were analysed using relation expressing the dependence of the mass equilibrium moisture content (EMC) of plasters saturated with salt solution of given molality on relative humidity of the environment. For relative humidity up to 70 %, good agreement between measured and calculated data was obtained. For higher relative humidity, the water vapour adsorption capacity of studied materials was not fully exploited especially for lower chloride concentrations. The type of binder together with physical parameters of examined materials was found to have a decisive role in chloride binding. One of the tested materials can be possibly classified as WTA renovation plaster, considering its total open porosity, bulk density and high binding capacity for chlorides. On the other hand, one must take into account its hygroscopicity, especially in case of a higher salt contamination.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

<a href="/en/project/GA15-10591S" target="_blank" >GA15-10591S: Impact of long-term environmental conditions on the hydrophobic properties of the surface layers</a><br>

Continuities

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

Publication year

2018

Confidentiality

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

Name of the periodical

Materials Science (Medžiagotyra)

ISSN

1392-1320

e-ISSN

2029-7289

Volume of the periodical

24

Issue of the periodical within the volume

4

Country of publishing house

LT - LITHUANIA

Number of pages

6

Pages from-to

437-442

UT code for WoS article

000450233400015

EID of the result in the Scopus database

2-s2.0-85057173038