Effect of high temperatures on cement composite materials in concrete structures

0394584 - ÚGN 2014 RIV CZ eng J - Článek v odborném periodiku
Bodnárová, L. - Válek, J. - Sitek, Libor - Foldyna, Josef
Effect of high temperatures on cement composite materials in concrete structures.
Acta geodynamica et geomaterialia. Roč. 10, č. 2 (2013), s. 173-180. ISSN 1214-9705. E-ISSN 2336-4351
Grant CEP: GA MŠMT ED2.1.00/03.0082; GA ČR GAP104/12/1988
Institucionální podpora: RVO:68145535
Klíčová slova: high temperature * load resistance * concrete * reinforcing of mine works * fiber reinforcement
Kód oboru RIV: JJ - Ostatní materiály
Impakt faktor: 0.667, rok: 2013
http://www.irsm.cas.cz/materialy/acta_content/2013_02/acta_170_06_Bodnirovi_173-180.pdf

Concrete is flexible construction materi al, which is utilized in various technologica l applications for underground structures and reinforcement of mine works (adits, tunnels etc.). In such applications, concrete has ma ny functions – static function, water-tightness, gas-tightne ss, resistance to action of aggressive waters as well as durability. In case of railroad and road tunnel constructions, there is an other important problem: influence of high temp eratures on concrete lining during wildfire. The paper focuses on analysis of behavior of cement composite material (concrete ) exposed to high temperatures. Several possibilities of increasing resistance of cement composites to high temperatures are proposed as well as recommendation fo r reduction of damage on structures exposed to high temperature.
Trvalý link: http://hdl.handle.net/11104/0222817