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EXPERIMENTAL EVALUATION OF CUMULATIVE DAMAGE OF PLASTERS EXPOSED TO ENVIRONMENTAL CONDITIONS OF CENTRAL EUROPE

Cerny, R.; Cachova, M.; Dolezelova, M.; Vejmelkova, E.
Abstract:
Plasters belong to the most common external surface layers of building envelopes in Central Europe, which is supposedly due to their low cost and technological simplicity. Their continuous exposure to external environment can though lead to the cumulation of damage and subsequently to the necessity to repair or replace them after certain time. In this paper, the effects of environmental conditions of the city of Prague on three different plasters on lime-cement basis, commonly used either in contemporary buildings or in building renovation works in the Czech Republic, are analyzed. The samples are left for four years in an outside test facility exposed to rain, snow, wind, sun radiation, and polluted air. Then, their basic physical properties, mechanical properties, and water- and water vapor transport properties are determined and compared with the reference specimens. Experimental results do not show any significant damage, which is caused by the very mild winters over the studied time period, minimizing a possible freeze/thaw deterioration typical for the Central European climate.
SGEM Research areas:
Year:
2018
Type of Publication:
In Proceedings
Keywords:
Exterior plasters; environmental effects; basic physical properties; mechanical properties; water and water vapor transport properties
Volume:
18
SGEM Book title:
18th International Multidisciplinary Scientific GeoConference SGEM 2018
Book number:
6.3
SGEM Series:
International Multidisciplinary Scientific GeoConference-SGEM
Pages:
189-196
Publisher address:
51 Alexander Malinov blvd, Sofia, 1712, Bulgaria
SGEM supporters:
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
Period:
02-08 July, 2018
ISBN:
978-619-7408-52-2
ISSN:
1314-2704
Conference:
18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
DOI:
10.5593/sgem2018/6.3/S26.025
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