Study on permeability of concrete fortifications from ww2 based on mercury intrusion porosimetry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00354576" target="_blank" >RIV/68407700:21110/21:00354576 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.325.162" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/SSP.325.162</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.325.162" target="_blank" >10.4028/www.scientific.net/SSP.325.162</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Study on permeability of concrete fortifications from ww2 based on mercury intrusion porosimetry

Popis výsledku v původním jazyce

Quantification of water transport properties of concrete is crucial for prediction of the material degradation processes. In case of 80 years´ old concrete of fortification structures of former Czechoslovakia, its permeability is the determining factor of the scale of degradation. Mercury intrusion porosimetry was used to characterize the porous system of seven existing bunkers from the defence line ”Pražská čára” and to calculate the permeability using model of Bágel and Živica. Results showed the altered structure of the old concrete, characterized by no notable peaks, which mark the critical pore radius most responsible for water intake. The majority of pores are small micropores, which does not contribute much in the water transport. However, calculated permeability is high enough to be the cause of several degradation processes. The performed program also confirmed high variability of permeability properties between individual structures.

Název v anglickém jazyce

Study on permeability of concrete fortifications from ww2 based on mercury intrusion porosimetry

Popis výsledku anglicky

Quantification of water transport properties of concrete is crucial for prediction of the material degradation processes. In case of 80 years´ old concrete of fortification structures of former Czechoslovakia, its permeability is the determining factor of the scale of degradation. Mercury intrusion porosimetry was used to characterize the porous system of seven existing bunkers from the defence line ”Pražská čára” and to calculate the permeability using model of Bágel and Živica. Results showed the altered structure of the old concrete, characterized by no notable peaks, which mark the critical pore radius most responsible for water intake. The majority of pores are small micropores, which does not contribute much in the water transport. However, calculated permeability is high enough to be the cause of several degradation processes. The performed program also confirmed high variability of permeability properties between individual structures.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

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

Projekt

<a href="/cs/project/DG18P02OVV063" target="_blank" >DG18P02OVV063: Vývoj progresivního sanačního postupu pro restaurování a konzervaci vojenských pevnostních objektů z 30. let 20. století</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

162-167

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

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