Detail publikace

Behaviour of concrete in tunels and undeground concstructions in case of fire

BODNÁROVÁ, L. SITEK, L. VÁLEK, J.

Originální název

Behaviour of concrete in tunels and undeground concstructions in case of fire

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The problem of cement concrete resistance to high temperatures became topical after more frequent car accidents, heavy good vehicles in particular, in tunnels with an outbreak of fire as a result of an accident. Tunnel lining is exposed to intensive temperature released as a result of fire with the temperatures high above 1000 C. The inner part of lining is exposed to various temperature intensities depending on the distance from the fire. Owing to water steam expansion in concrete as a result of temperature-time exposure, concrete surface is cracking and concrete layers are peeled off from various depths and thus the lining is secondary damaged. Appropriate composition of concrete, selection of binder of cement composite material and selection aggregate, additions and/or adding dispersed polypropylene fiber reinforcement can reduce destructive action of high temperature.

Klíčová slova

tunnel, concrete, high temperature, fire

Autoři

BODNÁROVÁ, L.; SITEK, L.; VÁLEK, J.

Rok RIV

2014

Vydáno

25. 6. 2014

Místo

Ostrava

ISBN

978-80-86407-49-4

Kniha

GECO 2014

Číslo edice

5

Strany od

85

Strany do

86

Strany počet

2

BibTex

@inproceedings{BUT112832,
  author="Lenka {Bodnárová} and Libor {Sitek} and Jaroslav {Válek}",
  title="Behaviour of concrete in tunels and undeground concstructions in case of fire",
  booktitle="GECO 2014",
  year="2014",
  number="5",
  pages="85--86",
  address="Ostrava",
  isbn="978-80-86407-49-4"
}