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BODNÁROVÁ, L. HROUDOVÁ, J. BROŽOVSKÝ, J. ZACH, J. VÁLEK, J.
Original Title
Behaviour of cement composites with lightweight and heavyweight aggregates at high temperatures
Type
journal article in Web of Science
Language
English
Original Abstract
This paper presents new results of the research of the influence of individual input components done on the behaviour of cement based composite materials exposed to high temperatures. A new approach of this research lies in combining a fraction of basalt fine aggregate and an aggregate base on expanded clay for a composite material with lower volume weight and higher strengths and a resistance to high temperatures. In the field of dispersed reinforcement, new polypropylene fibers treated by low temperature plasma were tested. Degradation of the structure of designed mixtures was evaluated by comparing density changes, mechanical and acoustic properties before and after exposure to high temperatures. An optical microscope was used for determining the width of cracks caused by a thermal load. The contribution of this research was the use of non-destructive methods for diagnostics of quality and properties of designed concrete mixtures exposed to high temperatures.
Keywords
cement, high temperature, fire resistance, fibers, volumetric change,; mechanical properties, propagation of ultrasonic waves, modulus of elasticity, concrete
Authors
BODNÁROVÁ, L.; HROUDOVÁ, J.; BROŽOVSKÝ, J.; ZACH, J.; VÁLEK, J.
Released
24. 3. 2017
Publisher
Budapest University of Technology and Economics
ISBN
0553-6626
Periodical
Periodica Polytechnica - Civil Engineering
Year of study
61
Number
2 (2017)
State
Hungary
Pages from
272
Pages to
281
Pages count
10
URL
https://pp.bme.hu/ci/article/view/9365
Full text in the Digital Library
http://hdl.handle.net/11012/68897
BibTex
@article{BUT131492, author="Lenka {Bodnárová} and Jitka {Peterková} and Jiří {Brožovský} and Jiří {Zach} and Jaroslav {Válek}", title="Behaviour of cement composites with lightweight and heavyweight aggregates at high temperatures", journal="Periodica Polytechnica - Civil Engineering", year="2017", volume="61", number="2 (2017)", pages="272--281", doi="10.3311/PPci.9365", issn="0553-6626", url="https://pp.bme.hu/ci/article/view/9365" }