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ŠTEFKOVÁ, D. TUPÝ, M. SOTIRIADIS, K. TIMČAKOVÁ, K. CHOBOLA, Z.
Originální název
Non–destructive Acoustic Testing of High-temperature Degraded Composite Cementations Materials Containing Rubber Aggregates and Ethylen Vinyl Acetate Polymer Binder
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
The use of impact-echo acoustic method to test cement-based mortar composites modified with rubber aggregates and EVA polymer binder and degraded at high temperatures was studied. The specimens were prepared by using a type CEM I Portland cement and siliceous sand, as well as by substituting 25% of sand with shredded automobile tires and by adding EVA polymer binder (10% w/w to cement mass). The specimens were subjected to high temperatures (200-400 degrees of Celsius). The results of non-destructive testing confirmed the different structure of mortar specimens. The partial substitution of sand with rubber aggregates led to absorption of lower frequencies as compared to the reference specimens. A significant decrease of the absorbed freaThe use of impact-echo acoustic method to test cement-based mortar composites modified with rubber aggregates and EVA polymer binder and degraded at high temperatures was studied. The specimens were prepared by using a type CEM I Portland cement and siliceous sand, as well as by substituting 25% of sand with shredded automobile tires and by adding EVA polymer binder (10% w/w to cement mass). The specimens were subjected to high temperatures (200-400 degrees of Celsius). The results of non-destructive testing confirmed the different structure of mortar specimens. The partial substitution of sand with rubber aggregates led to absorption of lower frequencies as compared to the reference specimens. A significant decrease of the absorbed frequencies was observed, depending on temperature. The largest decrease occurred after the specimens exposure at 200-300 degrees of Celsius. The effect of heat exposure to the decrease of frequencies was mitigated when the EVA polymer was used.uencies was observed, depending on temperature. The largest decrease occurred after the specimens exposure at 200-300 degrees of Celsius. The effect of heat exposure to the decrease of frequencies was mitigated when the EVA polymer was used.
Klíčová slova
Impact-echo, mortar, EVA polymer, rubber aggregates, high-temperature degradation
Autoři
ŠTEFKOVÁ, D.; TUPÝ, M.; SOTIRIADIS, K.; TIMČAKOVÁ, K.; CHOBOLA, Z.
Rok RIV
2014
Vydáno
12. 8. 2014
Nakladatel
Trans Tech Publications
Místo
Schwitzerland
ISBN
978-3-03835-188-7
Kniha
International Conference on Ecology and New Building Materials and Products
Číslo edice
ISSN
1022-6680
Periodikum
Advanced Materials Research
Ročník
Číslo
1000
Stát
Švýcarská konfederace
Strany od
334
Strany do
338
Strany počet
5
URL
http://www.scientific.net/AMR.1000.334
BibTex
@inproceedings{BUT108797, author="Daniela {Kysilková} and Michael {Tupý} and Konstantinos {Sotiriadis} and Kristýna {Timčaková} and Zdeněk {Chobola}", title="Non–destructive Acoustic Testing of High-temperature Degraded Composite Cementations Materials Containing Rubber Aggregates and Ethylen Vinyl Acetate Polymer Binder", booktitle="International Conference on Ecology and New Building Materials and Products", year="2014", journal="Advanced Materials Research", volume="2014", number="1000", pages="334--338", publisher="Trans Tech Publications", address="Schwitzerland", doi="10.4028/www.scientific.net/AMR.1000.334", isbn="978-3-03835-188-7", issn="1022-6680", url="http://www.scientific.net/AMR.1000.334" }