Publication detail

ACOUSTIC EMISSION PARAMETERS OF ALKALI ACTIVATED FLY ASH SPECIMENS WITH HEMP FIBRES UNDER STATIC LOADING

TOPOLÁŘ, L. ŠIMONOVÁ, H. KUCHARCZYKOVÁ, B.

Original Title

ACOUSTIC EMISSION PARAMETERS OF ALKALI ACTIVATED FLY ASH SPECIMENS WITH HEMP FIBRES UNDER STATIC LOADING

Type

article in a collection out of WoS and Scopus

Language

English

Original Abstract

This paper deals with the effect of the different amount of hemp fibres added to fine-grained composite based on alkali activated fly ash matrix on the values of acoustic emission signals parameters obtained during the fracture tests. The prisms specimens with nominal dimension 40 × 40 × 160 mm and initial central edge notch were subjected to tests in three-point bending configuration. The four magnetic sensors were placed on each specimen and acoustic emission signals were recorded during the loading. The obtained results indicate that the specimens with hemp fibres exhibit a larger number of acoustic emission events than reference specimens without the fibres. It can be most likely connected to pull-out or break of the hemp fibres. The addition of hemp fibres causes the attenuation of the AE signals and the reduction of the amplitude values.

Keywords

acoustic emission method; thre-point bending test; alkali-activated materials; hemp fibres

Authors

TOPOLÁŘ, L.; ŠIMONOVÁ, H.; KUCHARCZYKOVÁ, B.

Released

24. 10. 2018

Publisher

RILEM publications S.A.R.L.

Location

FRANCE

ISBN

978-2-35158-202-2

Book

SynerCrete’18: Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time

Pages from

383

Pages to

388

Pages count

6

URL

https://zenodo.org/record/1405563#.XrkMTmgzZnJ

BibTex

@inproceedings{BUT150731,
  author="Libor {Topolář} and Hana {Šimonová} and Barbara {Kucharczyková}",
  title="ACOUSTIC EMISSION PARAMETERS OF ALKALI ACTIVATED FLY ASH SPECIMENS WITH HEMP FIBRES UNDER STATIC LOADING",
  booktitle="SynerCrete’18: Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time",
  year="2018",
  pages="383--388",
  publisher="RILEM publications S.A.R.L.",
  address="FRANCE",
  isbn="978-2-35158-202-2",
  url="https://zenodo.org/record/1405563#.XrkMTmgzZnJ"
}