Pullout behavior of oxygen plasma treated polymer fibers from cement matrix

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00317319" target="_blank" >RIV/68407700:21110/17:00317319 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.14311/APP.2017.13.0130" target="_blank" >http://dx.doi.org/10.14311/APP.2017.13.0130</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/APP.2017.13.0130" target="_blank" >10.14311/APP.2017.13.0130</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pullout behavior of oxygen plasma treated polymer fibers from cement matrix

Popis výsledku v původním jazyce

The aim of this work is to describe bonding properties between surface treated polymer fibers and a cement matrix. In order to increase an interaction between the matrix and fiber surfaces, two fiber types having approx. 0.5 mm in diameter were modified by mean of oxygen plasma treatment. Surface physical changes of treated fibers were examined using SEM morphology observation and interfacial adhesion mechanical tests. The principle of mechanical tests rested on a single fiber pulling out from the matrix (cement paste, CEM I 42.5 R, w/c 0.4). The embedded length was equal to 50 % of original fiber length (50 mm), where the fiber free-end displacement and force resisting to the displacement were monitored. It was pointed out that interfacial shear stress needed to break the bond between the modified fibers and the matrix increased almost by 15–65 % if compared to reference fibers. When the fiber free-end displacement reached to 3.5 mm, the shear strength increased almost twice.

Název v anglickém jazyce

Pullout behavior of oxygen plasma treated polymer fibers from cement matrix

Popis výsledku anglicky

The aim of this work is to describe bonding properties between surface treated polymer fibers and a cement matrix. In order to increase an interaction between the matrix and fiber surfaces, two fiber types having approx. 0.5 mm in diameter were modified by mean of oxygen plasma treatment. Surface physical changes of treated fibers were examined using SEM morphology observation and interfacial adhesion mechanical tests. The principle of mechanical tests rested on a single fiber pulling out from the matrix (cement paste, CEM I 42.5 R, w/c 0.4). The embedded length was equal to 50 % of original fiber length (50 mm), where the fiber free-end displacement and force resisting to the displacement were monitored. It was pointed out that interfacial shear stress needed to break the bond between the modified fibers and the matrix increased almost by 15–65 % if compared to reference fibers. When the fiber free-end displacement reached to 3.5 mm, the shear strength increased almost twice.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA15-12420S" target="_blank" >GA15-12420S: Modifikace povrchů polymerní a skleněné mikro-výztuže pro aplikace ve stavebnictví</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

NMM 2017 - Nano & Macro Mechanics 2017

ISBN

978-80-01-06346-0

ISSN

2336-5382

e-ISSN

—

Počet stran výsledku

5

Strana od-do

130-134

Název nakladatele

Czech Technical University in Prague

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

21. 9. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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