Publication detail

Fracture parameters of fly ash geopolymer mortars with carbon black and graphite filler

ŠIMONOVÁ, H. MIZEROVÁ, C. ROVNANÍK, P. LIPOWCZAN, M. SCHMID, P.

Original Title

Fracture parameters of fly ash geopolymer mortars with carbon black and graphite filler

Type

conference paper

Language

English

Original Abstract

In this study, the effect of carbon black and graphite filler on the crack initiation and fracture parameters of fly ash geopolymer mortar is investigated. The carbon black was added in the amount of 0.5 and 1.0% and graphite powder in the amount of 5 and 10% relative to the fly ash mass. The reference mixture without any filler was also prepared. The fracture characteristics were determined based on the results of the three-point bending test of prismatic specimens provided with an initial central edge notch. The fracture experiments were conducted at the age of 48 days. The vertical force (F), the displacement measured in the middle of the span length (d), and the crack mouth opening displacement (CMOD) were continuously recorded during the test. The records of fracture tests were subsequently evaluated using the effective crack model, work-of-fracture method, and double-K fracture model. The addition of both fine fillers led to a decrease in monitored mechanical fracture parameters in comparison with reference mortar.

Keywords

geopolymer, fly ash, fracture, graphite, carbon black

Authors

ŠIMONOVÁ, H.; MIZEROVÁ, C.; ROVNANÍK, P.; LIPOWCZAN, M.; SCHMID, P.

Released

23. 11. 2021

Publisher

IOP Publishing

Location

Bristol

ISBN

1757-899X

Periodical

IOP Conference Series: Materials Science and Engineering

Year of study

1205

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

8

Pages count

8

URL

https://iopscience.iop.org/article/10.1088/1757-899X/1205/1/012019

Full text in the Digital Library

http://hdl.handle.net/11012/203333

BibTex

@inproceedings{BUT175906,
  author="Hana {Šimonová} and Cecílie {Mizerová} and Pavel {Rovnaník} and Martin {Lipowczan} and Pavel {Schmid}",
  title="Fracture parameters of fly ash geopolymer mortars with carbon black and graphite filler",
  booktitle="International Conference Building Materials, Products and Technologies (ICBMPT 2021)",
  year="2021",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="1205",
  pages="1--8",
  publisher="IOP Publishing",
  address="Bristol",
  doi="10.1088/1757-899X/1205/1/012019",
  issn="1757-899X",
  url="https://iopscience.iop.org/article/10.1088/1757-899X/1205/1/012019"
}