Approximation of the bridge deck diffusion coefficient and surface chloride concentration from field data

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU138798" target="_blank" >RIV/00216305:26110/19:PU138798 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1757-899X/659/1/012048" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/659/1/012048</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899x/659/1/012048" target="_blank" >10.1088/1757-899x/659/1/012048</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Approximation of the bridge deck diffusion coefficient and surface chloride concentration from field data

Popis výsledku v původním jazyce

The aim of this work is to analyse the data from in-situ measurements performed on 5 reinforced concrete bridges built between 1937 and 1986, that are a part of the road network in the Czech Republic. The bridges were subjected to the field measurements in order to evaluate the ability of the concrete to protect the steel reinforcement from corrosion, namely the pH and the amount of water-soluble chlorides were evaluated on drilled core samples of concrete. Based on the actual chloride content, the diffusion coefficient and surface chloride concentration were determined. All the data were statistically summarized and the correlations among them were provided. The main focus of this study is to evaluate the non-proportional effect of the amount of chlorides per mass of concrete on the risk of corrosion initiation and to determine the unknown parameters of concrete – diffusion coefficient and surface chloride concentration, based on the numerical model of diffusion.

Název v anglickém jazyce

Approximation of the bridge deck diffusion coefficient and surface chloride concentration from field data

Popis výsledku anglicky

The aim of this work is to analyse the data from in-situ measurements performed on 5 reinforced concrete bridges built between 1937 and 1986, that are a part of the road network in the Czech Republic. The bridges were subjected to the field measurements in order to evaluate the ability of the concrete to protect the steel reinforcement from corrosion, namely the pH and the amount of water-soluble chlorides were evaluated on drilled core samples of concrete. Based on the actual chloride content, the diffusion coefficient and surface chloride concentration were determined. All the data were statistically summarized and the correlations among them were provided. The main focus of this study is to evaluate the non-proportional effect of the amount of chlorides per mass of concrete on the risk of corrosion initiation and to determine the unknown parameters of concrete – diffusion coefficient and surface chloride concentration, based on the numerical model of diffusion.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/GA18-07949S" target="_blank" >GA18-07949S: Pravděpodobnostní modelování trvanlivosti železobetonových konstrukcí s uvážením spolupůsobení karbonatace, chloridů a mechanického zatížení</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

9th International Scientific Conference on Research and Development of Mechanical Elements and Systems, IRMES 2019

ISBN

—

ISSN

1757-8981

e-ISSN

—

Počet stran výsledku

13

Strana od-do

1-13

Název nakladatele

IOP Publishing, 2019

Místo vydání

Kragujevac, Serbia

Místo konání akce

Kragujevac

Datum konání akce

5. 9. 2019

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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