Publication result detail

Influence of Aeration of Concrete on Acoustic Emission and Fracture Mechanical Parameters Obtained from Three-point Bending Tests

TOPOLÁŘ, L.; ŠIMONOVÁ, H.; MISÁK, P.; DANĚK, P.; KERŠNER, Z.; PAZDERA, L.

Original Title

Influence of Aeration of Concrete on Acoustic Emission and Fracture Mechanical Parameters Obtained from Three-point Bending Tests

English Title

Influence of Aeration of Concrete on Acoustic Emission and Fracture Mechanical Parameters Obtained from Three-point Bending Tests

Type

Paper in proceedings (conference paper)

Original Abstract

This paper examines the analysis of acoustic emission signals captured during three-point bending fracture tests of concrete specimens with similar water-cement ratio, but one set of specimens was prepared from aerated concrete. The acoustic emission method is an experimental tool well suited for monitoring fracture processes in material. The typical parameters of acoustic emission signals were identified from the acoustic emission records for two different concrete mixtures to further describe the under-the-stress behaviour and failure development. An understanding of microstructure-performance relationships is the key to true understanding of material behaviour. The crack growth was continuously monitored using four acoustic emission sensors mounted on the specimen. The acoustic emission results are accompanied by selected fracture mechanical parameters determined via evaluation of load versus displacement diagrams recorded during three-point bending fracture tests.

English abstract

This paper examines the analysis of acoustic emission signals captured during three-point bending fracture tests of concrete specimens with similar water-cement ratio, but one set of specimens was prepared from aerated concrete. The acoustic emission method is an experimental tool well suited for monitoring fracture processes in material. The typical parameters of acoustic emission signals were identified from the acoustic emission records for two different concrete mixtures to further describe the under-the-stress behaviour and failure development. An understanding of microstructure-performance relationships is the key to true understanding of material behaviour. The crack growth was continuously monitored using four acoustic emission sensors mounted on the specimen. The acoustic emission results are accompanied by selected fracture mechanical parameters determined via evaluation of load versus displacement diagrams recorded during three-point bending fracture tests.

Keywords

aerated concrete, acoustic emission method, three-point bending test, fracture

Key words in English

aerated concrete, acoustic emission method, three-point bending test, fracture

Authors

TOPOLÁŘ, L.; ŠIMONOVÁ, H.; MISÁK, P.; DANĚK, P.; KERŠNER, Z.; PAZDERA, L.

RIV year

2016

Released

02.06.2015

Publisher

Trans Tech Publications

Location

Switzerland

ISBN

978-3-03835-587-8

Book

Ecological and New Building Materials and Products

Edition

1

ISBN

1022-6680

Periodical

Advanced Materials Research

Volume

2015

Number

1124

State

Swiss Confederation

Pages from

237

Pages to

242

Pages count

6

BibTex

@inproceedings{BUT115391,
  author="Libor {Topolář} and Hana {Šimonová} and Petr {Misák} and Petr {Daněk} and Zbyněk {Keršner} and Luboš {Pazdera}",
  title="Influence of Aeration of Concrete on Acoustic Emission and Fracture Mechanical Parameters Obtained from Three-point Bending Tests",
  booktitle="Ecological and New Building Materials and Products",
  year="2015",
  series="1",
  journal="Advanced Materials Research",
  volume="2015",
  number="1124",
  pages="237--242",
  publisher="Trans Tech Publications",
  address="Switzerland",
  doi="10.4028/www.scientific.net/AMR.1124.237",
  isbn="978-3-03835-587-8",
  issn="1022-6680"
}