Salt crystallization test of repair lime plaster containing zeolite

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00353055" target="_blank" >RIV/68407700:21110/21:00353055 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.5593/sgem2021/6.1/s26.53" target="_blank" >http://dx.doi.org/10.5593/sgem2021/6.1/s26.53</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2021/6.1/s26.53" target="_blank" >10.5593/sgem2021/6.1/s26.53</a>

Result language

angličtina

Original language name

Salt crystallization test of repair lime plaster containing zeolite

Original language description

Natural zeolites having a structure with a large number of cavities allow design lightweight plasters with improved thermal insulation parameters. Focusing on the assessment of plasters’ durability, their resistance to salt damage should to be taken into consideration, especially in case of their application in repair of salt laden masonry. Although the crystallization of salts in plasters presents a serious problem, there is as yet no standard procedure for its evaluation. To predict salt damage of lime-based plasters in practice, they were subjected to accelerated laboratory salt crystallization test, where sodium chloride solution and cyclic drying and wetting were the observed degradation factors. Studied materials were lime plaster and lime-zeolite plaster, where zeolite was used as a full replacement of silica sand. A comprehensive characterization of both plasters performed before crystallization test cycles included specific density, bulk density, total open porosity, compressive strength, flexural strength, and dynamic modulus of elasticity tests. The assessment of salt damage was done based on the photographical observations, optical microscopy, and mass change after salt crystallization experiment. Obtained results of the plasters’ durability with respect to the salt resistance provided the necessary information for improvement of laboratory salt crystallization tests.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2021

Confidentiality

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

Article name in the collection

21th International Multidisciplinary Scientific Geoconference SGEM 2021 Conference Proceedings

ISBN

978-619-7603-30-9

ISSN

1314-2704

e-ISSN

—

Number of pages

8

Pages from-to

417-424

Publisher name

STEF92 Technology Ltd.

Place of publication

Sofia

Event location

Albena

Event date

Aug 14, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—