USE OF FINELY GROUND RECYCLED CONCRETE FOR IMPROVEMENT OF INTERFACIAL ADHESION IN FIBER-REINFORCED CEMENTITIOUS COMPOSITES
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00333657" target="_blank" >RIV/68407700:21110/19:00333657 - isvavai.cz</a>
Result on the web
<a href="https://ojs.cvut.cz/ojs/index.php/APP/issue/view/668" target="_blank" >https://ojs.cvut.cz/ojs/index.php/APP/issue/view/668</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/APP.2019.21.0005" target="_blank" >10.14311/APP.2019.21.0005</a>
Alternative languages
Result language
angličtina
Original language name
USE OF FINELY GROUND RECYCLED CONCRETE FOR IMPROVEMENT OF INTERFACIAL ADHESION IN FIBER-REINFORCED CEMENTITIOUS COMPOSITES
Original language description
This paper deals with an improvement and an assessment of a polymeric macro-fibers adhesion to the cement matrix. For this purpose, two approaches were employed – (i) roughening of fibers using a plasma treatment and (ii) an addition of finely ground recycled concrete (amount 30 wt. %) to the matrix ensuring the roughness of interfacial zones. Polyethylene terephthalate (PET) and polypropylene (PP) fibers, both ca. 0.3 mm in a diameter, were used. These were surface roughened using a cold oxygen plasma treatment and then observed by means of the scanning electron microscopy. Consequently, pull-out tests of an individual fiber embedded 25mm in the matrix were performed, while the force needed for fiber pullout was recorded. Results have shown that plasma treated fibers reached on a better adhesion with the matrix by up to ca. 5 % (PET) and 20 % (PP), if compared to reference fibers. When recycled concrete was used, the adhesion increased further by about 5–10 % for both fiber types.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)
Result continuities
Project
<a href="/en/project/GA17-06771S" target="_blank" >GA17-06771S: Research into possibilities of utilizing micronized recycled concrete to be used as filler with binding capacity</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
CONTEMPORARY MATERIALS AND TECHNOLOGIES IN CIVIL ENGINEERING 2018
ISBN
978-80-01-06547-1
ISSN
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e-ISSN
2336-5382
Number of pages
5
Pages from-to
5-9
Publisher name
Czech Technical University in Prague
Place of publication
Praha
Event location
Praha
Event date
Jun 13, 2018
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
000506864600002