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ŠIMONOVÁ, H. KUCHARCZYKOVÁ, B. TOPOLÁŘ, L. BÍLEK, V., Jr. KERŠNER, Z.
Originální název
Fracture properties of concrete specimens made from alkali activated binders.
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
The aim of this paper is to quantify crack initiation and other fracture properties – effective fracture toughness and specific fracture energy – of two types of concrete with an alkali activated binder. The beam specimens with a stress concentrator were tested in a three-point bending test after 28, 90, and 365 days of maturing. Records of fracture tests in the form of load versus deflection (P–d) diagrams were evaluated using effective crack model and work-of-fracture method and load versus mouth crack opening displacement (P–CMOD) diagrams were evaluated using the Double-K fracture model. The initiation of cracks during the fracture tests for all ages was also monitored by the acoustic emission method. The higher value of monitored mechanical fracture parameters of concrete with alkali activated blast furnace slag were achieved with substitution blast furnace slag by low calcium fly ash in comparison with substitution by cement kiln dust.
Klíčová slova
alkali aktivated binder, fracture test, acoustic emission, fly ash, cment kiln dust
Autoři
ŠIMONOVÁ, H.; KUCHARCZYKOVÁ, B.; TOPOLÁŘ, L.; BÍLEK, V., Jr.; KERŠNER, Z.
Vydáno
15. 9. 2017
Nakladatel
IOP Publishing
Místo
Bristol
ISSN
1757-899X
Periodikum
IOP Conference Series: Materials Science and Engineering
Ročník
236
Číslo
1
Stát
Spojené království Velké Británie a Severního Irska
Strany od
Strany do
6
Strany počet
URL
http://iopscience.iop.org/article/10.1088/1757-899X/236/1/012068
Plný text v Digitální knihovně
http://hdl.handle.net/11012/137173
BibTex
@inproceedings{BUT139674, author="Hana {Šimonová} and Barbara {Kucharczyková} and Libor {Topolář} and Vlastimil {Bílek} and Zbyněk {Keršner}", title="Fracture properties of concrete specimens made from alkali activated binders.", booktitle="BESTInfra 2017", year="2017", journal="IOP Conference Series: Materials Science and Engineering", volume="236", number="1", pages="1--6", publisher="IOP Publishing", address="Bristol", doi="10.1088/1757-899X/236/1/012068", issn="1757-899X", url="http://iopscience.iop.org/article/10.1088/1757-899X/236/1/012068" }