Interaction assessment between fiber reinforcement and cement matrix containing finely ground recycled concrete

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00322645" target="_blank" >RIV/68407700:21110/18:00322645 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1757-899X/379/1/012016" target="_blank" >http://dx.doi.org/10.1088/1757-899X/379/1/012016</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1757-899X/379/1/012016" target="_blank" >10.1088/1757-899X/379/1/012016</a>

Result language
angličtina
Original language name
Interaction assessment between fiber reinforcement and cement matrix containing finely ground recycled concrete
Original language description
This work deals with adhesion enhancement between polymer macro-fibers and cement matrix (CEM I 42.5 R). Two types of fibers were used - polypropylene (PP) and polyethylene terephthalate (PET), both having approx. 0.3 mm in diameter. To achieve the increase between the two materials, fibers were surface roughened by means of an oxygen plasma treatment. Moreover, a concrete finely ground recyclate containing grains at the size of less than 0.25 mm was admixed into the cement matrix (the amount was equal to 30 wt. % of cement) to promote the required adhesion between the two materials by principle of adhesive locks. To assess the adhesion, individual fibers were pulled-out from the matrix, while a force needed to their movement was recorded. The fiber embedded length was 30 mm. It was shown, that plasma treated fibers exhibited increased adhesion with the matrix by ca. up to 20% (PP), resp. 5% (PET) than them with no surface treatment. If the concrete recyclate was used, the adhesion further increased by ca. 5–10% for both fiber types.
Czech name
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Czech description
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Project
<a href="/en/project/FV20503" target="_blank" >FV20503: Lightweight masonry materials based on micro-milled mineral by-products with controlled utility properties</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
International Conference Building Materials, Products and Technologies
ISBN
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ISSN
1757-8981
e-ISSN
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Number of pages
5
Pages from-to
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Publisher name
IOP Publishing Ltd
Place of publication
Bristol
Event location
Blansko
Event date
May 29, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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