Přístupnostní navigace
E-přihláška
Vyhledávání Vyhledat Zavřít
Detail publikace
NOVÁKOVÁ, I. BODNÁROVÁ, L. STAVAŘ, T. HELA, R.
Originální název
EVALUATION OF DISRUPTION OF CONCRETE CAUSED BY EXPOSURE TO HIGH TEMPERATURES BY INITIAL SURFACE ABSORPTION TEST
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
If a concrete structure is exposed to high temperature, inner structure of concrete degrades. Level of permeability of the surface layer is important for evaporation of water vapor from the whole bulk of the structure. If permeability of the surface layer is low, explosive spalling can occur and steel reinforcement can be uncovered. One of methods of measuring permeability of the surface layer of concrete is the Initial Surface Absorption Test (ISAT). The paper states results of experimental determination of permeability of the surface layer of concrete before and after thermal load. Tested concretes contained basalt aggregate and lightweight expanded clay aggregate. Results of the measurements showed that structure of surface layer in case of concrete with lightweight expanded clay aggregate is less porous than the structure of concrete with basalt aggregates. Damages caused by exposer to high temperature were recorded on both tested mixtures but concrete with lightweight expanded clay aggregate resists better.
Klíčová slova
Initial Surface Absorption Test (ISAT), high temperatures, lightweight expanded clay aggregate, basalt aggregate, normative heat curve ISO 834, fire risk
Autoři
NOVÁKOVÁ, I.; BODNÁROVÁ, L.; STAVAŘ, T.; HELA, R.
Rok RIV
2015
Vydáno
1. 8. 2015
Nakladatel
Asian Research Publishing Network
ISSN
1819-6608
Periodikum
ARPN Journal of Engineering and Applied Sciences
Ročník
10
Číslo
15
Stát
Pákistánská islámská republika
Strany od
6299
Strany do
6304
Strany počet
6
BibTex
@article{BUT116124, author="Iveta {Nováková} and Lenka {Bodnárová} and Tomáš {Stavař} and Rudolf {Hela}", title="EVALUATION OF DISRUPTION OF CONCRETE CAUSED BY EXPOSURE TO HIGH TEMPERATURES BY INITIAL SURFACE ABSORPTION TEST", journal="ARPN Journal of Engineering and Applied Sciences", year="2015", volume="10", number="15", pages="6299--6304", issn="1819-6608" }