Detail publikace

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

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

Originální název

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

Anglický název

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

Jazyk

en

Originální abstrakt

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.

Anglický abstrakt

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.

Dokumenty

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",
  annote="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.",
  address="RILEM publications S.A.R.L.",
  booktitle="SynerCrete’18: Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time",
  chapter="150731",
  howpublished="print",
  institution="RILEM publications S.A.R.L.",
  year="2018",
  month="october",
  pages="383--388",
  publisher="RILEM publications S.A.R.L."
}