Detail publikace

Behaviour of Lightweight Expanded Clay Aggregate Concrete Exposed to High Temperatures

BODNÁROVÁ, L. HELA, R. HUBERTOVÁ, M. NOVÁKOVÁ, I.

Originální název

Behaviour of Lightweight Expanded Clay Aggregate Concrete Exposed to High Temperatures

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

This paper is concerning the issues of behaviour of lightweight expanded clay aggregates concrete exposed to high temperature. Lightweight aggregates from expanded clay are produced by firing of row material up to temperature 1050 C. Lightweight aggregates have suitable properties in terms of volume stability, when exposed to temperatures up to 1050 C, which could indicate their suitability for construction applications with higher risk of fire. The test samples were exposed to heat by using the standard temperature-time curve ISO 834. Negative changes in resulting mechanical properties, such as compressive strength, tensile strength, and flexural strength were evaluated. Also visual evaluation of the specimen was performed. On specimen exposed to excessive heat, an explosive spalling could be observed, due to evaporation of considerable amount of unbounded water from the inner structure of the concrete.

Klíčová slova

Expanded clay aggregate, explosive spalling, high temperature, lightweight concrete, temperature-time curve ISO 834.

Autoři

BODNÁROVÁ, L.; HELA, R.; HUBERTOVÁ, M.; NOVÁKOVÁ, I.

Rok RIV

2014

Vydáno

1. 12. 2014

Místo

Turecko

ISSN

1307-6892

Periodikum

World Academy of Science, Engineering and Technology

Ročník

2014

Číslo

8

Stát

Turecká republika

Strany od

172

Strany do

175

Strany počet

4

BibTex

@article{BUT112311,
  author="Lenka {Bodnárová} and Rudolf {Hela} and Michala {Hubertová} and Iveta {Nováková}",
  title="Behaviour of Lightweight Expanded Clay Aggregate Concrete Exposed to High Temperatures",
  journal="World Academy of Science, Engineering and Technology",
  year="2014",
  volume="2014",
  number="8",
  pages="172--175",
  issn="1307-6892"
}