Detail publikačního výsledku

Analysis of Inner Structure Changes of Concretes Exposed to High Temperatures using Micro X-ray Computed Tomography

BODNÁROVÁ, L.; SITEK, L.; SOUČEK, K.; STAŠ, L.; GURKOVÁ, L.

Originální název

Analysis of Inner Structure Changes of Concretes Exposed to High Temperatures using Micro X-ray Computed Tomography

Anglický název

Analysis of Inner Structure Changes of Concretes Exposed to High Temperatures using Micro X-ray Computed Tomography

Druh

Článek WoS

Originální abstrakt

The X-ray Computed Tomography (X-ray CT) represents a progressive non-destructive method of analysing the inner structure of materials. The method was used for monitoring changes in inner structure of concrete samples of different composition before and after their exposure to various thermal loads. Eight types of concrete samples were prepared which differed by cement and aggregate types. We intentionally used such composition of concrete mixtures which increased their resistance to high temperatures. The inner structure of samples was analysed using the micro X-ray CT before the thermal loading and after exposure of samples to temperatures of 600C and 900C respectively. Damages and character of changes in the inner structure caused by high temperatures were influenced by the character of cement and aggregate we used. The analysis of obtained results is presented in the paper.

Anglický abstrakt

The X-ray Computed Tomography (X-ray CT) represents a progressive non-destructive method of analysing the inner structure of materials. The method was used for monitoring changes in inner structure of concrete samples of different composition before and after their exposure to various thermal loads. Eight types of concrete samples were prepared which differed by cement and aggregate types. We intentionally used such composition of concrete mixtures which increased their resistance to high temperatures. The inner structure of samples was analysed using the micro X-ray CT before the thermal loading and after exposure of samples to temperatures of 600C and 900C respectively. Damages and character of changes in the inner structure caused by high temperatures were influenced by the character of cement and aggregate we used. The analysis of obtained results is presented in the paper.

Klíčová slova

X-ray tomography, concrete, cement paste, aggregate, high temperature

Klíčová slova v angličtině

X-ray tomography, concrete, cement paste, aggregate, high temperature

Autoři

BODNÁROVÁ, L.; SITEK, L.; SOUČEK, K.; STAŠ, L.; GURKOVÁ, L.

Rok RIV

2016

Vydáno

02.03.2015

Nakladatel

IRSM AS CR

ISSN

1214-9705

Periodikum

Acta Geodynamica et Geomaterialia

Svazek

12

Číslo

1

Stát

Česká republika

Strany od

79

Strany do

89

Strany počet

11

URL

https://www.irsm.cas.cz/index_en.php?page=acta_detail_doi&id=107#

Plný text v Digitální knihovně

http://hdl.handle.net/11012/201404

BibTex

@article{BUT114052,
  author="Libor {Sitek} and Lenka {Bodnárová} and Kamil {Souček} and Lubomír {Staš} and Lucie {Gurková}",
  title="Analysis of Inner Structure Changes of Concretes Exposed to High Temperatures using Micro X-ray Computed Tomography",
  journal="Acta Geodynamica et Geomaterialia",
  year="2015",
  volume="12",
  number="1",
  pages="79--89",
  doi="10.13168/AGG.2015.0009",
  issn="1214-9705",
  url="https://www.irsm.cas.cz/index_en.php?page=acta_detail_doi&id=107#"
}

Dokumenty

Sitek_AGG_2015_0009