Utilization of Surface-Modified Polymer and Glass Micro-Fibers as Reinforcement in Cement Composites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00317707" target="_blank" >RIV/68407700:21110/18:00317707 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21720/18:00317707

Result on the web

<a href="https://www.scientific.net/KEM.760.225" target="_blank" >https://www.scientific.net/KEM.760.225</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.760.225" target="_blank" >10.4028/www.scientific.net/KEM.760.225</a>

Result language

angličtina

Original language name

Utilization of Surface-Modified Polymer and Glass Micro-Fibers as Reinforcement in Cement Composites

Original language description

The presented work focuses on plasma modifications of polymer and glass micro-fibers (having 32 and 14 μm in the diameter, respectively) used as randomly distributed and oriented reinforcement of concrete composites. Fiber surfaces were modified by means of the low-pressure coupled cold oxygen plasma in order to attain a strong adhesion with the cement matrix. From the perspective of micro scale, an impact of modifications on both the physical and the chemical surface changes of treated fibers was examined using: (i) a wettability measurements – an evaluation of an interphase interaction between demineralized water and fibers and (ii) the SEM microscopy – an assessment of a surface morphology. From the perspective of macro scale, the interaction between the two materials was examined by destructive four-point bending tests of the cement paste containing both the reference and treated fibers (specimens having dimensions equal to 40x40x160 mm, water to cement ration 0.4) were done. It was shown that the wettability of modified fibers was increased by approx. 10 % and 70 % in the case of glass and polymer fibers, respectively. The SEM morphology analysis revealed fine roughening of treated fibers, if compared to the reference ones. The mechanical testing pointed out on a toughness increase in the post-cracking response of loaded specimens.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

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

Article name in the collection

Special Concrete and Composites 2017

ISBN

978-3-0357-1240-7

ISSN

1013-9826

e-ISSN

1662-9795

Number of pages

6

Pages from-to

225-230

Publisher name

Transtech Publications

Place of publication

Zürich

Event location

Skalský Dvůr

Event date

Oct 10, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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