Počet záznamů: 1
Performance of cement composites reinforced with surface-modified polypropylene micro-fibers
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SYSNO ASEP 0517137 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Performance of cement composites reinforced with surface-modified polypropylene micro-fibers Tvůrce(i) Antoš, J. (CZ)
Dejdar, L. (CZ)
Trejbal, J. (CZ)
Prošek, Zdeněk (FZU-D)Celkový počet autorů 4 Zdroj.dok. Acta Polytechnica CTU Proceedings, NMM 2017 - Nano & Macro Mechanics 2017, 13. - Prague : Czech Technical University in Prague, 2017 / Padevět P. - ISBN 978-80-01-06346-0 Rozsah stran s. 11-15 Poč.str. 5 s. Forma vydání Online - E Akce Conference Nano and Macro Mechanics 2017 /8./ Datum konání 21.09.2017 - 21.09.2017 Místo konání Prague Země CZ - Česká republika Typ akce CST Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova cement composite ; fiber reinforcement ; polymeric fiber ; surface modification ; four-point bending ; plasma treatment Vědní obor RIV BM - Fyzika pevných látek a magnetismus Obor OECD Condensed matter physics (including formerly solid state physics, supercond.) Institucionální podpora FZU-D - RVO:68378271 UT WOS 000433365100002 DOI 10.14311/APP.2017.13.0011 Anotace This paper focuses on the mechanical properties investigation of cement pastes reinforced with surface treated polymer fibers. The cement matrix was composed of Portland cement (CEM I 42.5 R, w/c ratio equal to 0.4). Two polypropylene fiber types (micro-and macro-fibers) were used as randomly distributed and oriented reinforcement in volume amount of 2 %. The fibers were modified in the low-pressure inductively coupled cold oxygen plasma in order to enhance their surface interaction with the cement matrix. The investigated composite mechanical properties (load bearing capacity and response during loading) were examined indirectly by means of four-point bending mechanical destructive tests. A response of loaded samples containing treated fibers were compared to samples with reference fibers. Moreover, cracking behavior development was monitored using digital image correlation (DIC). This method enabled to record the micro-cracks system evaluation of both fiber reinforced samples.
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Počet záznamů: 1