The experimental verification of concrete elements strengthened using ultra-high-performance concrete

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00351653" target="_blank" >RIV/68407700:21110/21:00351653 - isvavai.cz</a>

Výsledek na webu

<a href="https://phdsymp2020.sciencesconf.org/data/book_phdsymp2020_2021.pdf" target="_blank" >https://phdsymp2020.sciencesconf.org/data/book_phdsymp2020_2021.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The experimental verification of concrete elements strengthened using ultra-high-performance concrete

Popis výsledku v původním jazyce

UHPC (ultrahigh-performance concrete) is a type concrete that has significantly better properties than commonly used concrete. In addition to the widely known high compression and tensile strengths, greater durability and resistance are also advantages of these types of concrete. These concretes can be used for both new structures and reconstructions. Nowadays, these types of concrete are in minority due to higher price and complex casting. This paper deals with the properties and behaviour of concrete structures strengthened using UHPC. One of the most important properties is a good bond between old concrete and the layer of UHPC. According to this fact, some types of bond were tested and evaluated. Then, using the most effective type of connection, experiments to determine and to compare values of bending load capacity both specimens strengthened using UHPC and without strengthening were made. Three types of elements were used; elements without strengthening and elements strengthened using 30 mm and 50 mm of UHPC. Besides the load bearing capacity, deformations and cracks were observed. Finally, measured values were compared with results of simplified calculations.

Název v anglickém jazyce

The experimental verification of concrete elements strengthened using ultra-high-performance concrete

Popis výsledku anglicky

UHPC (ultrahigh-performance concrete) is a type concrete that has significantly better properties than commonly used concrete. In addition to the widely known high compression and tensile strengths, greater durability and resistance are also advantages of these types of concrete. These concretes can be used for both new structures and reconstructions. Nowadays, these types of concrete are in minority due to higher price and complex casting. This paper deals with the properties and behaviour of concrete structures strengthened using UHPC. One of the most important properties is a good bond between old concrete and the layer of UHPC. According to this fact, some types of bond were tested and evaluated. Then, using the most effective type of connection, experiments to determine and to compare values of bending load capacity both specimens strengthened using UHPC and without strengthening were made. Three types of elements were used; elements without strengthening and elements strengthened using 30 mm and 50 mm of UHPC. Besides the load bearing capacity, deformations and cracks were observed. Finally, measured values were compared with results of simplified calculations.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/FV20472" target="_blank" >FV20472: Aplikace vysokohodnotných cementových kompozitů na rekonstrukce betonových staveb</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 2021 session of the 13th fib International PhD Symposium in Civil Engineering

ISBN

978-2-940643-11-0

ISSN

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e-ISSN

2617-4820

Počet stran výsledku

10

Strana od-do

27-36

Název nakladatele

fib - fédération internationale du béton

Místo vydání

Lausanne

Místo konání akce

Paříž

Datum konání akce

21. 7. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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