MECHANICAL PROPERTIES IMPROVEMENT OF FIBER REINFORCED CONCRETE
dc.contributor.author | Trejbal, Jan | |
dc.contributor.author | Nežerka, Václav | |
dc.contributor.author | Hlůžek, Radim | |
dc.contributor.author | Prošek, Zdeněk | |
dc.date.accessioned | 2023-01-18T15:23:37Z | |
dc.date.available | 2023-01-18T15:23:37Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Acta Polytechnica. 2019, vol. 22, no. 0, p. 123-127. | |
dc.identifier.issn | 1210-2709 (print) | |
dc.identifier.issn | 1805-2363 (online) | |
dc.identifier.uri | http://hdl.handle.net/10467/106112 | |
dc.description.abstract | Fiber reinforced concrete mechanical properties are limited due to low adhesion between polymer fibers and cement matrix. To ensure a strong interaction between the two materials, polypropylene fibers (d = 0.305mm) were modified by an oxygen plasma treatment. The interface interaction was moreover activated using finely ground concrete recyclate, whose individual grains (1−64 μm) ensure an adhesion improvement in interfacial zones. The adhesion enhancement was verified by pull-out tests, when reference and modified fibers were pulled-out from cement matrix specimens. Such obtained results were used as a crucial parameter to numerical simulations of bending tests of specimens (550 × 150 × 150mm) with properties following fiber reinforced concrete. It was shown that samples reinforced with modified fibers and contained activating recyclate reached on higher residual bending strength then those with reference fibers. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | |
dc.publisher | České vysoké učení technické v Praze | cs |
dc.publisher | Czech Technical University in Prague | en |
dc.relation.ispartofseries | Acta Polytechnica | |
dc.relation.uri | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5670 | |
dc.rights | Creative Commons Attribution 4.0 International License | en |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.title | MECHANICAL PROPERTIES IMPROVEMENT OF FIBER REINFORCED CONCRETE | |
dc.type | article | en |
dc.date.updated | 2023-01-18T15:23:37Z | |
dc.identifier.doi | 10.14311/APP.2019.22.0123 | |
dc.rights.access | openAccess | |
dc.type.status | Peer-reviewed | |
dc.type.version | publishedVersion |
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