Detail publikačního výsledku

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

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

Originální název

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

Anglický název

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

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

geopolymer, fly ash, fracture, graphite, carbon black

Klíčová slova v angličtině

geopolymer, fly ash, fracture, graphite, carbon black

Autoři

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

Rok RIV

2025

Vydáno

23.11.2021

Nakladatel

IOP Publishing

Místo

Bristol

Kniha

International Conference Building Materials, Products and Technologies (ICBMPT 2021)

ISSN

1757-899X

Periodikum

IOP Conference Series: Materials Science and Engineering

Svazek

1205

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

8

Strany počet

8

URL

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

Plný text v Digitální knihovně

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",
  url="https://iopscience.iop.org/article/10.1088/1757-899X/1205/1/012019"
}

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