Detail publikačního výsledku
Crack initiation in concrete specimens based on alkali-activate binders
ŠIMONOVÁ, H.; TOPOLÁŘ, L.; HAVLÍKOVÁ, I.; ROZSYPALOVÁ, I.; KUCHARCZYKOVÁ, B.; KERŠNER, Z.; BÍLEK, V.
Original Title
Crack initiation in concrete specimens based on alkali-activate binders
English Title
Crack initiation in concrete specimens based on alkali-activate binders
Type
Paper in proceedings (conference paper)
Original Abstract
The aim of this paper is to quantify crack initiation of two types of concrete with alkali activat-ed 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 opening displacement (P–CMOD) diagrams were evaluated using Double-K fracture model. This model allows the quantification of two different levels of the crack propagation: the initiation, which corresponds to the beginning of the stable crack growth and the level of the unstable crack propagation. The initiation of cracks during the fracture tests was also monitored by the acous-tic emission method.
English abstract
The aim of this paper is to quantify crack initiation of two types of concrete with alkali activat-ed 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 opening displacement (P–CMOD) diagrams were evaluated using Double-K fracture model. This model allows the quantification of two different levels of the crack propagation: the initiation, which corresponds to the beginning of the stable crack growth and the level of the unstable crack propagation. The initiation of cracks during the fracture tests was also monitored by the acous-tic emission method.
Keywords
crack initiation, fracture test, concrete, acoustic emission, alkali-activated-binder
Key words in English
crack initiation, fracture test, concrete, acoustic emission, alkali-activated-binder
Authors
ŠIMONOVÁ, H.; TOPOLÁŘ, L.; HAVLÍKOVÁ, I.; ROZSYPALOVÁ, I.; KUCHARCZYKOVÁ, B.; KERŠNER, Z.; BÍLEK, V.
RIV year
2017
Released
06.12.2016
Publisher
Taylor & Francis Group
Location
London
ISBN
978-1-138-03224-8
Book
Advances and Trends in Engineering Sciences and Technologies II
Pages from
267
Pages to
272
Pages count
8
Full text in the Digital Library
BibTex
@inproceedings{BUT130276,
author="Hana {Šimonová} and Libor {Topolář} and Ivana {Havlíková} and Iva {Čairović} and Barbara {Kucharczyková} and Zbyněk {Keršner} and Vlastimil {Bílek}",
title="Crack initiation in concrete specimens based on alkali-activate binders",
booktitle="Advances and Trends in Engineering Sciences and Technologies II",
year="2016",
pages="267--272",
publisher="Taylor & Francis Group",
address="London",
isbn="978-1-138-03224-8"
}