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

Simple item page
dc.contributor.authorSedlmajer, Martincs
dc.contributor.authorBubeník, Jancs
dc.contributor.authorZach, Jiřícs
dc.contributor.authorNovák, Vítězslavcs
dc.coverage.volume47cs
dc.date.issued2024-05-18cs
dc.description.abstractDifferent 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.en
dc.description.abstractDifferent 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.en
dc.formattextcs
dc.format.extent121-127cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationActa Polytechnica CTU Proceedings. 2024, vol. 47, p. 121-127.en
dc.identifier.doi10.14311/APP.2024.47.0121cs
dc.identifier.isbn978-80-01-07309-4cs
dc.identifier.issn2336-5382cs
dc.identifier.orcid0000-0003-2615-7922cs
dc.identifier.orcid0000-0002-9829-8903cs
dc.identifier.orcid0000-0002-0426-8317cs
dc.identifier.orcid0000-0002-9204-5884cs
dc.identifier.other188680cs
dc.identifier.researcheridAAD-5443-2019cs
dc.identifier.researcheridCAI-1424-2022cs
dc.identifier.scopus25930597000cs
dc.identifier.scopus46661500800cs
dc.identifier.urihttp://hdl.handle.net/11012/249945
dc.language.isoencs
dc.publisherCzech Technical University in Praguecs
dc.relation.ispartofActa Polytechnica CTU Proceedingscs
dc.relation.urihttps://ojs.cvut.cz/ojs/index.php/APP/article/view/9868cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2336-5382/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectfibres based on secondary raw materialsen
dc.subjectrecyclingen
dc.subjectconcreteen
dc.subjectfibres based on secondary raw materials
dc.subjectrecycling
dc.subjectconcrete
dc.titleCharacteristics of Fibres Based on Secondary Raw Materials and Their Use in Concrete Technologyen
dc.title.alternativeCharacteristics of Fibres Based on Secondary Raw Materials and Their Use in Concrete Technologyen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-188680en
sync.item.dbtypeVAVen
sync.item.insts2025.10.14 14:46:01en
sync.item.modts2025.10.14 10:04:41en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technologie stavebních hmot a dílcůcs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Sedlmajer.pdf
Size:
3.02 MB
Format:
Adobe Portable Document Format
Description:
file Sedlmajer.pdf
Download
Collections
Ústav technologie stavebních hmot a dílců