Detail publikace

Study of the behaviour of recycled and traditional fibres in cement composite at extreme temperatures

KŘÍŽOVÁ, K. BARÁNEK, Š. BUBENÍK, J. MAZÁN, T.

Originální název

Study of the behaviour of recycled and traditional fibres in cement composite at extreme temperatures

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

In this work, the behaviour of selected fibre types in cement composite mortar at different loading temperatures was investigated. The fibres used were industrially produced polypropylene fibres, recycled fibres from PET bottles and two types of cellulose fibres of which one type is produced by recycling wastepaper. Fibres were added to the cement composites in percentages ranging from 0, 0.3, 0.6, 0.75, 0.9 to 1.2%. The properties of the cement composites, such as flexural and compressive strength, were tested at different fibres percentages at laboratory temperatures of 200, 400, 600 and 800 °C. For all types of fibres used, the workability of the fresh mixture was found to be decreased. Comparable strength results to the reference mixture were obtained when recycled polypropylene and cellulose fibres were used. Based on the results obtained, the most effective fibres dosage was determined to be 0.6%. The most positive tensile flexural and compressive strength results after a thermal loading of 800 °C were obtained with recycled cellulose fibres compared to the reference mixture without fibres. It was evaluated by microscopic observation that the cellulose fibres are present in the composite even at temperatures around 400 °C, while the polymer fibres are completely burnt out. The research confirmed the clear benefits of using recycled fibres instead of conventionally used polymer fibres.

Klíčová slova

Cement composite, organic fibers, recycled fibers, rheological properties, physical mechanical properties, thermal loading.

Autoři

KŘÍŽOVÁ, K.; BARÁNEK, Š.; BUBENÍK, J.; MAZÁN, T.

Vydáno

15. 10. 2024

Nakladatel

ELSEVIER

Místo

RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS

ISSN

2352-7102

Periodikum

Journal of Building Engineering

Číslo

110134

Stát

Nizozemsko

Strany počet

20

URL

https://www.sciencedirect.com/science/article/pii/S2352710224017029

BibTex

@article{BUT187123,
  author="Klára {Křížová} and Šimon {Baránek} and Jan {Bubeník} and Tomáš {Mazán}",
  title="Study of the behaviour of recycled and traditional fibres in cement composite at extreme temperatures",
  journal="Journal of Building Engineering",
  year="2024",
  number="110134",
  pages="20",
  doi="10.1016/j.jobe.2024.110134",
  issn="2352-7102",
  url="https://www.sciencedirect.com/science/article/pii/S2352710224017029"
}