Publication detail

Fracture Process in a Fine – Grained Cement – Based Composite Monitored with Nanoindentation and Acoustic Emission

NĚMEČEK, J. KERŠNER, Z. SCHMID, P. HAVLÍKOVÁ, I. ŠIMONOVÁ, H. TOPOLÁŘ, L. VESELÝ, V. ROVNANÍK, P.

Original Title

Fracture Process in a Fine – Grained Cement – Based Composite Monitored with Nanoindentation and Acoustic Emission

Type

conference paper

Language

English

Original Abstract

The contribution is devoted to investigation of the fracture process zone (FPZ) in a finegrained cement-based composite made from hydrated Portland cement. Particularly, experimental investigations and description of the stable crack propagation using fracture mechanics model are conducted. Three-point bending tests on small composite beams with a central edge notch were performed. The damage due to fracture was monitored by means of nanoindentation performed around the macroscopically observable crack. Acoustic emission events were recorded during the three-point bending test and correlated with load–displacement data. The beneficial effect on the fracture resistance of fine-grained mortar specimens compared to plain cement pastes was quantified.

Keywords

Fracture process zone, cementitious composite, nanoindentation, acoustic emission

Authors

NĚMEČEK, J.; KERŠNER, Z.; SCHMID, P.; HAVLÍKOVÁ, I.; ŠIMONOVÁ, H.; TOPOLÁŘ, L.; VESELÝ, V.; ROVNANÍK, P.

RIV year

2015

Released

17. 6. 2015

Publisher

Trans Tech publications

Location

Switzerland

ISBN

978-3-03835-555-7

Book

Mechanical properties of Materials from Nano to Micro/Meso-Scale

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Year of study

662

State

Swiss Confederation

Pages from

47

Pages to

50

Pages count

4

BibTex

@inproceedings{BUT115157,
  author="Jiří {Němeček} and Zbyněk {Keršner} and Pavel {Schmid} and Ivana {Havlíková} and Hana {Šimonová} and Libor {Topolář} and Václav {Veselý} and Pavel {Rovnaník}",
  title="Fracture Process in a Fine – Grained Cement – Based Composite Monitored with Nanoindentation and Acoustic Emission",
  booktitle="Mechanical properties of Materials from Nano to Micro/Meso-Scale",
  year="2015",
  journal="Key Engineering Materials (print)",
  volume="662",
  pages="47--50",
  publisher="Trans Tech publications",
  address="Switzerland",
  doi="10.4028/www.scientific.net/KEM.662.47",
  isbn="978-3-03835-555-7",
  issn="1013-9826"
}