Detail publikačního výsledku

Fracture response of alkali-activated slag mortars reinforced by carbon fibres

ŠIMONOVÁ, H.; TOPOLÁŘ, L.; SCHMID, P.; KERŠNER, Z.; ROVNANÍK, P.

Originální název

Fracture response of alkali-activated slag mortars reinforced by carbon fibres

Anglický název

Fracture response of alkali-activated slag mortars reinforced by carbon fibres

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The paper reports a study of the effect of carbon fibres on the mechanical fracture parameters of alkali-activated slag mortars. The carbon fibres were added in the amount of 1, 2 and 3%, respectively with respect to the mass of the slag. The mechanical fracture parameters were determined using evaluation of fracture tests carried out on 40 × 40 × 160 mm beam specimens with an initial central edge notch. The monitored parameters were compressive strength, modulus of elasticity, effective fracture toughness and specific fracture energy. The specimen response during fracture tests was also monitored by means of acoustic emission. It was shown that as the addition of carbon fibres increased the value of compressive strength and modulus of elasticity of alkali-activated slag dropped to 50% in case of the highest amount of fibres. The effective fracture toughness is not significantly influenced by addition of carbon fibres. On the other hand, the fracture energy value gradually increases with addition of carbon fibres, up to more than twofold increase in case of the highest amount of fibres.

Anglický abstrakt

The paper reports a study of the effect of carbon fibres on the mechanical fracture parameters of alkali-activated slag mortars. The carbon fibres were added in the amount of 1, 2 and 3%, respectively with respect to the mass of the slag. The mechanical fracture parameters were determined using evaluation of fracture tests carried out on 40 × 40 × 160 mm beam specimens with an initial central edge notch. The monitored parameters were compressive strength, modulus of elasticity, effective fracture toughness and specific fracture energy. The specimen response during fracture tests was also monitored by means of acoustic emission. It was shown that as the addition of carbon fibres increased the value of compressive strength and modulus of elasticity of alkali-activated slag dropped to 50% in case of the highest amount of fibres. The effective fracture toughness is not significantly influenced by addition of carbon fibres. On the other hand, the fracture energy value gradually increases with addition of carbon fibres, up to more than twofold increase in case of the highest amount of fibres.

Klíčová slova

fracture, alkali activation, slag, carbon fibre

Klíčová slova v angličtině

fracture, alkali activation, slag, carbon fibre

Autoři

ŠIMONOVÁ, H.; TOPOLÁŘ, L.; SCHMID, P.; KERŠNER, Z.; ROVNANÍK, P.

Rok RIV

2019

Vydáno

12.07.2018

Nakladatel

IOP Publishing

Místo

Bristol

Kniha

International Conference Building Materials, Products and Technologies

ISSN

1757-8981

Periodikum

IOP Conference Series: Materials Science and Engineering

Svazek

379

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

6

Strany počet

6

URL

http://iopscience.iop.org/article/10.1088/1757-899X/379/1/012027

Plný text v Digitální knihovně

http://hdl.handle.net/11012/137138

BibTex

@inproceedings{BUT148833,
  author="Hana {Šimonová} and Libor {Topolář} and Pavel {Schmid} and Zbyněk {Keršner} and Pavel {Rovnaník}",
  title="Fracture response of alkali-activated slag mortars reinforced by carbon fibres",
  booktitle="International Conference Building Materials, Products and Technologies",
  year="2018",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="379",
  number="1",
  pages="1--6",
  publisher="IOP Publishing",
  address="Bristol",
  doi="10.1088/1757-899X/379/1/012027",
  issn="1757-8981",
  url="http://iopscience.iop.org/article/10.1088/1757-899X/379/1/012027"
}

Dokumenty

Šimonová_2018_IOP_Conf._Ser.__Mater._Sci._Eng._379_012027