Publication detail

Influence of rock inclusion composition on the fracture response of cement-based composite specimens

VYHLÍDAL, M. ROZSYPALOVÁ, I. ŠIMONOVÁ, H. KUCHARCZYKOVÁ, B. VAVRO, L. VAVRO, M. NĚMEČEK, J. ROVNANÍKOVÁ, P. KERŠNER, Z.

Original Title

Influence of rock inclusion composition on the fracture response of cement-based composite specimens

Type

conference paper

Language

English

Original Abstract

This paper concerns the results of research into the influence of the composition of rock inclusions on the fracture response of cement-based composite specimens. Specially designed specimens of the nominal dimensions 40 × 40 × 160 mm with inclusions in the shape of prisms with nominal dimensions of 8 × 8 × 40 mm were provided with an initial central edge notch with a depth of 12 mm. These specimens, which were made of fine-grained cement-based composite with different types of rock inclusion – amphibolite, basalt, granite, and marble – were tested in the three-point bending configuration. Fracture surfaces were examined via scanning electron microscopy and local response in the vicinity of rock inclusions was characterized via the nanoindentation technique. The aim of this paper is to analyse the influence of the chemical/petrographic composition of rock inclusions on the effective mechanical fracture parameters of cement-based composites, as well as on the microstructural mechanical parameters of the interfacial transition zone. The results of this research indicate the significant dependence of the effective fracture parameters on the petrographic and related chemical composition of the rock inclusions.

Keywords

Cement-based composite; Force–displacement diagram; Fracture test; Inclusion; Mechanical fracture parameters; Rocks.

Authors

VYHLÍDAL, M.; ROZSYPALOVÁ, I.; ŠIMONOVÁ, H.; KUCHARCZYKOVÁ, B.; VAVRO, L.; VAVRO, M.; NĚMEČEK, J.; ROVNANÍKOVÁ, P.; KERŠNER, Z.

Released

20. 11. 2021

Publisher

Elsevier

Location

Turin

ISBN

2452-3216

Periodical

Procedia Structural Integrity

Year of study

33

State

Republic of Italy

Pages from

966

Pages to

981

Pages count

16

URL

https://doi.org/10.1016/j.prostr.2021.10.107

Full text in the Digital Library

http://hdl.handle.net/11012/203089

BibTex

@inproceedings{BUT173310,
  author="Michal {Vyhlídal} and Iva {Čairović} and Hana {Šimonová} and Barbara {Kucharczyková} and Leona {Vavro} and Martin {Vavro} and Jiří {Němeček} and Pavla {Rovnaníková} and Zbyněk {Keršner}",
  title="Influence of rock inclusion composition on the fracture response of cement-based composite specimens",
  booktitle="Procedia Structural Integrity
26th International Conference on Fracture and Structural Integrity",
  year="2021",
  journal="Procedia Structural Integrity",
  volume="33",
  pages="966--981",
  publisher="Elsevier",
  address="Turin",
  doi="10.1016/j.prostr.2021.10.107",
  issn="2452-3216",
  url="https://doi.org/10.1016/j.prostr.2021.10.107"
}