Influence of weather-affected material characteristics on appearance of freeze/thaw cycles in building envelopes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00313103" target="_blank" >RIV/68407700:21110/17:00313103 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.4994503" target="_blank" >http://dx.doi.org/10.1063/1.4994503</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4994503" target="_blank" >10.1063/1.4994503</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of weather-affected material characteristics on appearance of freeze/thaw cycles in building envelopes

Popis výsledku v původním jazyce

The possible appearance of freeze/thaw cycles in external wall made of selected building material is assessed within this paper. Main objective of the presented research is to investigate the influence of weather-affected material characteristics on that phenomenon. For this sake, the samples were exposed to long-term weathering while the material characteristics were determined in the beginning of the experiment and then after two and three years. The comparative simulations of coupled heat and moisture transport inside the wall when exposed to dynamic climatic conditions were subsequently performed using reference and weather affected data. The results revealed that hygric parameters of the material, in particular, got worse which led also to deterioration of hygrothermal performance of the studied construction. The time of wetness under the external surface was twice as high when weather-affected data had been assumed. The number of possible freeze/thaw cycles was higher as well.

Název v anglickém jazyce

Influence of weather-affected material characteristics on appearance of freeze/thaw cycles in building envelopes

Popis výsledku anglicky

The possible appearance of freeze/thaw cycles in external wall made of selected building material is assessed within this paper. Main objective of the presented research is to investigate the influence of weather-affected material characteristics on that phenomenon. For this sake, the samples were exposed to long-term weathering while the material characteristics were determined in the beginning of the experiment and then after two and three years. The comparative simulations of coupled heat and moisture transport inside the wall when exposed to dynamic climatic conditions were subsequently performed using reference and weather affected data. The results revealed that hygric parameters of the material, in particular, got worse which led also to deterioration of hygrothermal performance of the studied construction. The time of wetness under the external surface was twice as high when weather-affected data had been assumed. The number of possible freeze/thaw cycles was higher as well.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Kumulativní časově závislé procesy ve stavebních materiálech a konstrukcích</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

THERMOPHYSICS 2017: 22nd International Meeting of Thermophysics 2017 and 4th Meeting of EnRe 2017

ISBN

978-0-7354-1546-1

ISSN

—

e-ISSN

1551-7616

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

American Institute of Physic AIP

Místo vydání

Santa Fe

Místo konání akce

Těrchová

Datum konání akce

12. 9. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000426600400028