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KUCHARCZYKOVÁ, B. ŠIMONOVÁ, H. KOCÁB, D. RIBEIRO FERNANDES, G.
Original Title
Non-traditional Approach to the Evaluation of the Freeze-thaw Resistance of Concrete based on the Fracture Tests
Type
conference paper
Language
English
Original Abstract
The paper deals with a pilot study focused on the freeze-thaw (F-T) resistance of concrete. A non-traditional approach to the evaluation of the F-T resistance of concrete based on the determination of the fracture parameters is presented in the paper. Three types of specimens were used in the experimental program – prisms with edge and Chevron notch, and cylinders with the Chevron notch. Three sets of specimens of each shape were tested in total. The reference set was stored in the water until the time of testing. Another two sets of specimens were subjected to 50 and 100 freeze-thaw tests, respectively. One F-T cycle consisted of 4 hours freezing in the air at temperature -18 °C and 2 hours thawing in the water at temperature +20 °C. Based on the results, it can be stated that the values of fracture energy are proportional to the area of the ligament. This finding was observed for all tested sets – non-frost and frost attacked. The values of modulus of elasticity and fracture toughness are influenced more by the geometry and also by the changes of the specimens’ stiffness due to the exposition to the F-T cycles.
Keywords
freeze-thaw resistance, concrete, fracture test
Authors
KUCHARCZYKOVÁ, B.; ŠIMONOVÁ, H.; KOCÁB, D.; RIBEIRO FERNANDES, G.
Released
14. 10. 2020
Publisher
EDP Sciences
Location
France
ISBN
2261-236X
Periodical
MATEC Web of Conferences
Year of study
322
Number
1
State
French Republic
Pages from
Pages to
9
Pages count
URL
https://www.matec-conferences.org/articles/matecconf/abs/2020/18/matecconf_matbud2020_01015/matecconf_matbud2020_01015.html
Full text in the Digital Library
http://hdl.handle.net/11012/196386
BibTex
@inproceedings{BUT166302, author="Barbara {Kucharczyková} and Hana {Šimonová} and Dalibor {Kocáb} and Gabriela {Ribeiro Fernandes}", title="Non-traditional Approach to the Evaluation of the Freeze-thaw Resistance of Concrete based on the Fracture Tests", booktitle="MATBUD’2020 – Scientific-Technical Conference: E-mobility, Sustainable Materials and Technologies", year="2020", journal="MATEC Web of Conferences", volume="322", number="1", pages="1--9", publisher="EDP Sciences", address="France", doi="10.1051/matecconf/202032201015", issn="2261-236X", url="https://www.matec-conferences.org/articles/matecconf/abs/2020/18/matecconf_matbud2020_01015/matecconf_matbud2020_01015.html" }