Publication result detail

Use of Electromagnetic and Acoustic Emission in Failure Monitoring of Cementitious Composites

TRČKA, T.; KOKTAVÝ, P.; KOKTAVÝ, B.

Original Title

Use of Electromagnetic and Acoustic Emission in Failure Monitoring of Cementitious Composites

English Title

Use of Electromagnetic and Acoustic Emission in Failure Monitoring of Cementitious Composites

Type

Paper in proceedings (conference paper)

Original Abstract

This paper is focused on the failure monitoring in cementitious composites under mechanical loading. The aim was to determine how the cracks generation intensity depends on the aggregate size in tested concrete samples. Our diagnostic method is based on the measurement of electromagnetic and acoustic emission signals, which occur when the solid dielectric materials are mechanically stressed. Several groups of concrete samples with various concrete composition formulas have been prepared for our experiment. We made two channel measurements of the concrete samples from each groups for defined loading conditions. This contribution describes our measurement system and also includes the pilot experimental results of the different cementitious specimens during linearly increasing uniaxial compression. From the obtained results can be concluded that the generated cracks intensity is significantly affected by the aggregate amount and size.

English abstract

This paper is focused on the failure monitoring in cementitious composites under mechanical loading. The aim was to determine how the cracks generation intensity depends on the aggregate size in tested concrete samples. Our diagnostic method is based on the measurement of electromagnetic and acoustic emission signals, which occur when the solid dielectric materials are mechanically stressed. Several groups of concrete samples with various concrete composition formulas have been prepared for our experiment. We made two channel measurements of the concrete samples from each groups for defined loading conditions. This contribution describes our measurement system and also includes the pilot experimental results of the different cementitious specimens during linearly increasing uniaxial compression. From the obtained results can be concluded that the generated cracks intensity is significantly affected by the aggregate amount and size.

Keywords

electromagnetic emission; acoustic emission; cracks; cementitious composites

Key words in English

electromagnetic emission; acoustic emission; cracks; cementitious composites

Authors

TRČKA, T.; KOKTAVÝ, P.; KOKTAVÝ, B.

RIV year

2013

Released

26.08.2012

Location

Kazaň

ISBN

978-80-214-3692-3

Book

Fracture Mechanics for Durability, Reliability and Safety

Pages from

530

Pages to

537

Pages count

8

BibTex

@inproceedings{BUT93639,
  author="Tomáš {Trčka} and Pavel {Koktavý} and Bohumil {Koktavý}",
  title="Use of Electromagnetic and Acoustic Emission in Failure Monitoring of Cementitious Composites",
  booktitle="Fracture Mechanics for Durability, Reliability and Safety",
  year="2012",
  number="1",
  pages="530--537",
  address="Kazaň",
  isbn="978-80-214-3692-3"
}