Laboratory research on disintegration of concretes exposed to high temperature by water jets

0396662 - ÚGN 2014 RIV PL eng C - Conference Paper (international conference)
Sitek, Libor - Bodnárová, L. - Klich, Jiří - Foldyna, Josef - Hlaváček, Petr - Zeleňák, Michal
Laboratory research on disintegration of concretes exposed to high temperature by water jets.
Nowoczesne metody eksploatacji wegla skal zwiezlych. Krakow: Adademia Górniczo Hutnicza Jm. Stanislawa Staszica w Krakowie, 2013, s. 26-35. ISBN 978-83-930353-1-1.
[TUR 2013 - Medzinarodowa konferencja techniki urbania /8./. Krynica (PL), 24.09.2013-27.09.2013]
R&D Projects: GA MŠMT ED2.1.00/03.0082; GA ČR GAP104/12/1988
Grant - others:GA TA ČR(CZ) TA01010948
Institutional support: RVO:68145535
Keywords : flat high-speed water jet * concrete mixtures * thermal stress
Subject RIV: JQ - Machines ; Tools

The paper is dealing with effects of flat high-speed water jet on concretes affected by high temperature. Several concrete mixtures were prepared for tests of interaction of water jet with concrete samples: 1)unaffected by high temperature, 2)exposed to 200°C and 3)exposed to 600°C- Achieved results are analyzed and discussed. Research should help especially after wildfires in tunnels, underground garages, etc., which are exposed to enormous thermal stress.
Permanent Link: http://hdl.handle.net/11104/0224433