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ŠIMONOVÁ, H. TOPOLÁŘ, L. HAVLÍKOVÁ, I. ROZSYPALOVÁ, I. KUCHARCZYKOVÁ, B. KERŠNER, Z. BÍLEK, V. Jr.
Originální název
Double-K fracture model parameters of alkali activated binders based concrete specimens.
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
The aim of this paper is to quantify fracture parameters of two types of concrete with alkali ac-tivated binder. The beam specimens with stress concentrator were tested in three-point bending at the age 28 days and 90 days. Records of fracture tests in form load versus crack mouth open-ing displacement (P–CMOD) diagrams were evaluated using Double-K fracture model. This model constitutes two material parameters; the first is called the initiation stress intensity factor, which defines the onset of cracking, and the second the unstable fracture toughness, which de-fines the onset of unstable cracking or failure. These parameters characterize the tested materials in more details and proceed from combination of the linear fracture mechanics principles and the concept of cohesive forces acting on the faces of the fictitious (effective) crack increment. Specimen response during fracture tests was also monitored by means of acoustic emission.
Klíčová slova
alkali activated binder, concret, fracture, double-k frature model, acoustic emission
Autoři
ŠIMONOVÁ, H.; TOPOLÁŘ, L.; HAVLÍKOVÁ, I.; ROZSYPALOVÁ, I.; KUCHARCZYKOVÁ, B.; KERŠNER, Z.; BÍLEK, V. Jr.
Vydáno
29. 6. 2016
Nakladatel
Technical University of Košice, Faculty of Civil Engineering
Místo
Košice
ISBN
978-80-553-2564-4
Kniha
ESat 2016 ‒ 2nd Int. Conf. on Engineering Sciences and Technologies.
Edice
první
Strany od
1
Strany do
4
Strany počet
BibTex
@inproceedings{BUT126666, author="Hana {Šimonová} and Libor {Topolář} and Ivana {Havlíková} and Iva {Čairović} and Barbara {Kucharczyková} and Zbyněk {Keršner} and Vlastimil {Bílek}", title="Double-K fracture model parameters of alkali activated binders based concrete specimens.", booktitle="ESat 2016 ‒ 2nd Int. Conf. on Engineering Sciences and Technologies.", year="2016", series="první", pages="1--4", publisher="Technical University of Košice, Faculty of Civil Engineering", address="Košice", isbn="978-80-553-2564-4" }