Detail publikace

Behaviour of cement composites with lightweight and heavyweight aggregates at high temperatures

BODNÁROVÁ, L. HROUDOVÁ, J. BROŽOVSKÝ, J. ZACH, J. VÁLEK, J.

Originální název

Behaviour of cement composites with lightweight and heavyweight aggregates at high temperatures

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

cement, high temperature, fire resistance, fibers, volumetric change,; mechanical properties, propagation of ultrasonic waves, modulus of elasticity, concrete

Autoři

BODNÁROVÁ, L.; HROUDOVÁ, J.; BROŽOVSKÝ, J.; ZACH, J.; VÁLEK, J.

Vydáno

24. 3. 2017

Nakladatel

Budapest University of Technology and Economics

ISSN

0553-6626

Periodikum

Periodica Polytechnica - Civil Engineering

Ročník

61

Číslo

2 (2017)

Stát

Maďarsko

Strany od

272

Strany do

281

Strany počet

10

URL

https://pp.bme.hu/ci/article/view/9365

Plný text v Digitální knihovně

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"
}