Comparison of procedures for the evaluation of time dependent concrete diffusion coefficient model
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F20%3A10245443" target="_blank" >RIV/61989100:27120/20:10245443 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61989100:27230/20:10245443
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S0950061820315403?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0950061820315403?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.conbuildmat.2020.119535" target="_blank" >10.1016/j.conbuildmat.2020.119535</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Comparison of procedures for the evaluation of time dependent concrete diffusion coefficient model
Popis výsledku v původním jazyce
The article focuses on approaches for the computation of the input parameters of the time-dependent service-life model for the resistance of High Performance Concrete mixtures (HPC) against chloride ion penetration. The resistance of chloride ion penetration due to corrosion is described by means of diffusion coefficient. The diffusion coefficient is derived from the non-destructive testing method of electrical resistivity based on electrochemistry and following AASTHTO TP-95 specification. The effect of concrete maturity on the diffusion coefficient is taken into account via aging factor. In addition, the application of the least square method is presented and compared with the logarithm-based method in order to approximate the aging factor and reference diffusion coefficient. The quality of approximation of both approaches including the effect of the reference diffusion coefficient selection is also evaluated. Further, the derivation for the computation of model input parameters of both methods is presented. Finally, evaluation of goodness of fit of both approaches is conducted, and recommendation has been proposed via Least Square method and coefficient of determination. (c) 2020 Elsevier Ltd. All rights reserved.
Název v anglickém jazyce
Comparison of procedures for the evaluation of time dependent concrete diffusion coefficient model
Popis výsledku anglicky
The article focuses on approaches for the computation of the input parameters of the time-dependent service-life model for the resistance of High Performance Concrete mixtures (HPC) against chloride ion penetration. The resistance of chloride ion penetration due to corrosion is described by means of diffusion coefficient. The diffusion coefficient is derived from the non-destructive testing method of electrical resistivity based on electrochemistry and following AASTHTO TP-95 specification. The effect of concrete maturity on the diffusion coefficient is taken into account via aging factor. In addition, the application of the least square method is presented and compared with the logarithm-based method in order to approximate the aging factor and reference diffusion coefficient. The quality of approximation of both approaches including the effect of the reference diffusion coefficient selection is also evaluated. Further, the derivation for the computation of model input parameters of both methods is presented. Finally, evaluation of goodness of fit of both approaches is conducted, and recommendation has been proposed via Least Square method and coefficient of determination. (c) 2020 Elsevier Ltd. All rights reserved.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20102 - Construction engineering, Municipal and structural engineering
Návaznosti výsledku
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)
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Construction and Building Materials
ISSN
0950-0618
e-ISSN
—
Svazek periodika
258
Číslo periodika v rámci svazku
October
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
10
Strana od-do
—
Kód UT WoS článku
000570173000018
EID výsledku v databázi Scopus
—