Evaluation of The Compressive Strength of Concrete under Combined Force and Chloride Load

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F23%3A10253944" target="_blank" >RIV/61989100:27120/23:10253944 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.aip.org/aip/acp/article-abstract/2950/1/020008/2928757/Evaluation-of-the-compressive-strength-of-concrete?redirectedFrom=fulltext" target="_blank" >https://pubs.aip.org/aip/acp/article-abstract/2950/1/020008/2928757/Evaluation-of-the-compressive-strength-of-concrete?redirectedFrom=fulltext</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0180721" target="_blank" >10.1063/5.0180721</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of The Compressive Strength of Concrete under Combined Force and Chloride Load

Popis výsledku v původním jazyce

The degradation of reinforced concrete (RC) in aggressive environments is caused by a combination of factors ranging from force loading to weathering, to various chemical agents. Reinforcement corrosion in RC structures caused by excessive chloride ion diffusion is then one of the highly critical factors related to the potential destruction of this construction. Considering these facts, it is highly desirable to investigate the behaviour of concretes under a combination of force and chemical loading. The present study thus provides the basic results of an experiment in which laboratory concrete specimens were first subjected to partial loading in a press machine, then immersed in a fully saturated salt solution, and in the last step the compressive strength was determined. The loaded specimens were compared with specimens without the first loading and also with specimens immersed in normal water. This makes it possible to evaluate the combined effect. The results were evaluated also with respect to the strength increase under maturation of concrete in time. The results showed that concrete immersed in water after initial partial loading has a lower ultimate strength. Then, concrete without preloading force but immersed in chloride solution showed lower values and concrete preloaded and immersed in chloride for 90 days had the worst residual strength result.

Název v anglickém jazyce

Evaluation of The Compressive Strength of Concrete under Combined Force and Chloride Load

Popis výsledku anglicky

The degradation of reinforced concrete (RC) in aggressive environments is caused by a combination of factors ranging from force loading to weathering, to various chemical agents. Reinforcement corrosion in RC structures caused by excessive chloride ion diffusion is then one of the highly critical factors related to the potential destruction of this construction. Considering these facts, it is highly desirable to investigate the behaviour of concretes under a combination of force and chemical loading. The present study thus provides the basic results of an experiment in which laboratory concrete specimens were first subjected to partial loading in a press machine, then immersed in a fully saturated salt solution, and in the last step the compressive strength was determined. The loaded specimens were compared with specimens without the first loading and also with specimens immersed in normal water. This makes it possible to evaluate the combined effect. The results were evaluated also with respect to the strength increase under maturation of concrete in time. The results showed that concrete immersed in water after initial partial loading has a lower ultimate strength. Then, concrete without preloading force but immersed in chloride solution showed lower values and concrete preloaded and immersed in chloride for 90 days had the worst residual strength result.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

<a href="/cs/project/GA22-19812S" target="_blank" >GA22-19812S: Vliv plynného a dopravou vyvolaného znečištění na trvanlivost železobetonových konstrukcí</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

SPACE 2022 : Structural and Physical Aspects of Construction Engineering : 5th international scientific conference : abstract proceedings : October 12-14, 2022, High Tatras, Slovakia

ISBN

978-80-553-4156-9

ISSN

—

e-ISSN

1551-7616

Počet stran výsledku

5

Strana od-do

1-5

Název nakladatele

Technical University of Košice

Místo vydání

Košice

Místo konání akce

Vysoké Tatry

Datum konání akce

12. 10. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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