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NESPĚŠNÝ, O. PĚNČÍK, J. BEČKOVSKÝ, D. VYSTRČIL, J. ŠUHAJDA, K.
Original Title
Determination of material and elasticity constants of cement fibre boards to extend field of application
Type
journal article in Web of Science
Language
English
Original Abstract
The paper aims to determine selected basic material and elasticity constants of cement fibre boards (CFB) with organic cellulose fibres produced with the use of Hatschek process and thus extend potential field of application of CFB in the field of civil engineering for supporting structure designs. Modulus of rupture and modulus of elasticity determination was performed with the use of a three-point and four-point bend test, and tensile strength and compressive strengths were tested. During loading the orientation of testing specimens was distinguished, while taking into account the production method. The loading was applied with regard to a potential use of the boards in supporting structures perpendicularly or parallel to the mid-plane of the board. An innovative approach to distinguishing board orientation during loading was selected in order to extend the scope of application of this special group of cement composites even outside the usual field of application, particularly with a focus on bearing structures of building construction. The testing specimen orientation had a significant effect on failure and course of loading diagrams. The biggest differences occurred under tensile loading, when delamination of thin layers (monolayers) of the cement fibre board occurred during perpendicular loading to the board mid-plane.
Keywords
Cement fibre board; CFB; Cellulose fibre; Mechanical material properties; Hatschek process
Authors
NESPĚŠNÝ, O.; PĚNČÍK, J.; BEČKOVSKÝ, D.; VYSTRČIL, J.; ŠUHAJDA, K.
Released
15. 9. 2021
Publisher
ELSEVIER SCI LTD
Location
OXFORD
ISBN
0950-0618
Periodical
Construction and building materials
Year of study
306
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
Pages to
10
Pages count
URL
https://doi.org/10.1016/j.conbuildmat.2021.124821
BibTex
@article{BUT172512, author="Ondřej {Nespěšný} and Jan {Pěnčík} and David {Bečkovský} and Jan {Vystrčil} and Karel {Šuhajda}", title="Determination of material and elasticity constants of cement fibre boards to extend field of application", journal="Construction and building materials", year="2021", volume="306", number="1", pages="1--10", doi="10.1016/j.conbuildmat.2021.124821", issn="0950-0618", url="https://doi.org/10.1016/j.conbuildmat.2021.124821" }