Performance of cement composites reinforced with surface-modified polypropylene micro-fibers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00517137" target="_blank" >RIV/68378271:_____/17:00517137 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.14311/APP.2017.13.0011" target="_blank" >http://dx.doi.org/10.14311/APP.2017.13.0011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/APP.2017.13.0011" target="_blank" >10.14311/APP.2017.13.0011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Performance of cement composites reinforced with surface-modified polypropylene micro-fibers

Popis výsledku v původním jazyce

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.n

Název v anglickém jazyce

Performance of cement composites reinforced with surface-modified polypropylene micro-fibers

Popis výsledku anglicky

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.n

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Acta Polytechnica CTU Proceedings

ISBN

978-80-01-06346-0

ISSN

2336-5382

e-ISSN

—

Počet stran výsledku

5

Strana od-do

11-15

Název nakladatele

Czech Technical University in Prague

Místo vydání

Prague

Místo konání akce

Prague

Datum konání akce

21. 9. 2017

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

000433365100002