On the effect of friction in testing of small-scale concrete cylinders

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU149667" target="_blank" >RIV/00216305:26110/23:PU149667 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

On the effect of friction in testing of small-scale concrete cylinders

Popis výsledku v původním jazyce

Testing of concrete to assess its mechanical properties is inherent to any concrete structure’s design and production process. Eurocode defines standardized dimensions of specimens to be used, cubes and cylin- ders, to ensure representative results. However, occasionally it may be necessary to use smaller specimens, especially if testing is done with cylindrical drill-core specimens, obtained from an existing structure. The crucial geometry parameter which defines a cylindrical specimen is the slenderness ratio. It has been shown in the literature that specimens of slenderness ratios lower than two experience different mechanism of failure because of the effect of friction between the specimen and the loading platens and subsequently withstand a higher load. The effect is quantified in Eurocode by a correcting coefficient. The present contribution aims to model the phenomena with a mesoscale lattice discrete model of concrete, evaluate correcting coefficients based on the obtained data, and compare th

Název v anglickém jazyce

On the effect of friction in testing of small-scale concrete cylinders

Popis výsledku anglicky

Testing of concrete to assess its mechanical properties is inherent to any concrete structure’s design and production process. Eurocode defines standardized dimensions of specimens to be used, cubes and cylin- ders, to ensure representative results. However, occasionally it may be necessary to use smaller specimens, especially if testing is done with cylindrical drill-core specimens, obtained from an existing structure. The crucial geometry parameter which defines a cylindrical specimen is the slenderness ratio. It has been shown in the literature that specimens of slenderness ratios lower than two experience different mechanism of failure because of the effect of friction between the specimen and the loading platens and subsequently withstand a higher load. The effect is quantified in Eurocode by a correcting coefficient. The present contribution aims to model the phenomena with a mesoscale lattice discrete model of concrete, evaluate correcting coefficients based on the obtained data, and compare th

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

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