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KUSÁK, I. LUŇÁK, M. CHOBOLA, Z. TUPÝ, M. SOTIRIADIS, K.
Original Title
Characterization of Thermal Stress of Building Materials Containing Rubber Granulate by Alternating Electric Field
Type
conference paper
Language
English
Original Abstract
The present paper deals with the application of impedance spectroscopy method to test cement-based composites after their exposure to high temperatures. A type CEM I Portland cement, siliceous sand and shredded automobile tires were used to prepare mortar specimens. The specimens differentiated in whether or not a 10 % w/w acrylic polymer binder (polymer dispersion 20 % w/w to cement mass) addition to the mortar mixture was used. The specimens were exposed to high temperatures (temperature range: 25-400 degrees of Celsius). Monitoring of structural changes during subjection to thermal stress is an effective way to determine the reliability of specimens structure. Based on Debye's dielectric theory, the specimens were used as dielectric models. Impedance spectra were obtained, while relative permittivity, loss factor and impedance were also measured. The results concerning electrical parameters and permittivity at each temperature were an indicator of the structural changes and its reliability.
Keywords
Impedance spectroscopy, dielectric losses, loss factor, polymer binder, thermal stress, rubber aggregates.
Authors
KUSÁK, I.; LUŇÁK, M.; CHOBOLA, Z.; TUPÝ, M.; SOTIRIADIS, K.
RIV year
2014
Released
12. 8. 2014
Publisher
Trans Tech Publications
Location
Switzerland
ISBN
978-3-03835-188-7
Book
International Conference on Ecology and New Building Materials and Products
Edition number
1022-6680
Periodical
Advanced Materials Research
Year of study
1000
Number
8
State
Swiss Confederation
Pages from
207
Pages to
211
Pages count
5
URL
http://www.scientific.net/AMR.1000.207
BibTex
@inproceedings{BUT108795, author="Ivo {Kusák} and Miroslav {Luňák} and Zdeněk {Chobola} and Michael {Tupý} and Konstantinos {Sotiriadis}", title="Characterization of Thermal Stress of Building Materials Containing Rubber Granulate by Alternating Electric Field", booktitle="International Conference on Ecology and New Building Materials and Products", year="2014", journal="Advanced Materials Research", volume="1000", number="8", pages="207--211", publisher="Trans Tech Publications", address="Switzerland", doi="10.4028/www.scientific.net/AMR.1000.207", isbn="978-3-03835-188-7", issn="1022-6680", url="http://www.scientific.net/AMR.1000.207" }