Detail publikace

Characteristics of Fibres Based on Secondary Raw Materials and Their Use in Concrete Technology

SEDLMAJER, M. BUBENÍK, J. ZACH, J. NOVÁK, V.

Originální název

Characteristics of Fibres Based on Secondary Raw Materials and Their Use in Concrete Technology

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Different types of fibres in cementitious composites, particularly in concrete, are currently used for a number of reasons. Fibres are being added to improve mechanical properties (especially steel and glass fibres), to increase the durability – to reduce occurrence of microcracks during the concrete aging (mainly synthetic and cellulose fibres), or to increase the fire resistance (polypropylene fibres). Within the study, characterization of different types of alternative fibres (fibres generated during waste recycling that would otherwise end in incinerators or landfills) with possible use in cementitious composites. These were fibres from recycled PET bottles, paper, and mineral wool, whose properties were compared to the traditionally used cellulose and polypropylene fibres. In the experimental part, the thickness, length, shape, and surface of individual fibres were monitored by an optical microscope. Furthermore, the amount of heat of combustion was determined by the calorimetric method, and the differential thermal analysis (DTA) was carried out for determination of the impact of high temperature on monitored fibres. The microstructure of fibres was monitored using a scanning electron microscope. The focus of the experimental study was on fibres usable in concrete and capable of enduring high temperature stress.

Klíčová slova

fibres based on secondary raw materials, recycling, concrete

Autoři

SEDLMAJER, M.; BUBENÍK, J.; ZACH, J.; NOVÁK, V.

Vydáno

18. 5. 2024

Nakladatel

Czech Technical University in Prague

Místo

Prague

ISBN

978-80-01-07309-4

Kniha

Modern Concrete and Composites 2023

Edice

1

Číslo edice

1

ISSN

2336-5382

Periodikum

Acta Polytechnica CTU Proceedings

Ročník

47

Číslo

2024

Stát

Česká republika

Strany od

121

Strany do

127

Strany počet

7

URL

https://ojs.cvut.cz/ojs/index.php/APP/article/view/9868

BibTex

@inproceedings{BUT188680,
  author="Martin {Sedlmajer} and Jan {Bubeník} and Jiří {Zach} and Vítězslav {Novák}",
  title="Characteristics of Fibres Based on Secondary Raw Materials and Their Use in Concrete Technology",
  booktitle="Modern Concrete and Composites 2023",
  year="2024",
  series="1",
  journal="Acta Polytechnica CTU Proceedings",
  volume="47",
  number="2024",
  pages="121--127",
  publisher="Czech Technical University in Prague",
  address="Prague",
  doi="10.14311/APP.2024.47.0121",
  isbn="978-80-01-07309-4",
  issn="2336-5382",
  url="https://ojs.cvut.cz/ojs/index.php/APP/article/view/9868"
}