Publication detail

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.

Original Title

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

English Title

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

Type

journal article in Web of Science

Language

en

Original Abstract

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.

English abstract

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.

Keywords

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

RIV year

2015

Released

02.03.2015

ISBN

1214-9705

Periodical

Acta Geodynamica et Geomaterialia

Year of study

12

Number

1

State

CZ

Pages from

79

Pages to

89

Pages count

10

Documents

BibTex


@article{BUT114052,
  author="Lenka {Bodnárová} and Libor {Sitek} 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",
  annote="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.",
  chapter="114052",
  doi="10.13168/AGG.2015.0009",
  number="1",
  volume="12",
  year="2015",
  month="march",
  pages="79--89",
  type="journal article in Web of Science"
}