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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/FV20503" target="_blank" >FV20503: Lehčené zdící materiály na bázi mikromletých minerálních vedlejších produktů s řízenými užitnými vlastnostmi</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

International Conference Building Materials, Products and Technologies

ISBN

—

ISSN

1757-8981

e-ISSN

—

Počet stran výsledku

5

Strana od-do

—

Název nakladatele

IOP Publishing Ltd

Místo vydání

Bristol

Místo konání akce

Blansko

Datum konání akce

29. 5. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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