Model Uncertainty in Diffusion Coefficient for Chloride Ingress into Concrete

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F21%3A00350412" target="_blank" >RIV/68407700:21610/21:00350412 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.prostr.2021.03.023" target="_blank" >https://doi.org/10.1016/j.prostr.2021.03.023</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.prostr.2021.03.023" target="_blank" >10.1016/j.prostr.2021.03.023</a>

Result language
angličtina
Original language name
Model Uncertainty in Diffusion Coefficient for Chloride Ingress into Concrete
Original language description
The diffusion coefficient for the chloride ingress into concrete is a key parameter describing the resistance against chloride penetration into the concrete. Consequently, it is an important aspect of the durability of reinforced concrete structures endangered by chloride-induced corrosion. The diffusion coefficient may be used for the direct assessment of the concrete quality with respect to chloride ingress and with respect to the numerical analysis of the durability of reinforced concrete structures. To estimate the diffusion coefficient, the computation based on the Second Fick's Law model and approximation of chloride profile from destructive penetration tests is usually utilized. Semi-destructive or non-destructive electrochemical tests provide estimates of the diffusion coefficient. The study reveals that (a) the resistivity readings provide a higher estimate for diffusion coefficient in comparison to short-time field exposures that seem to be associated with large uncertainty for exposure periods shorter than one year; (b) electrical resistivity measurements show significantly lower variation compared to the estimates based on chloride profiles.
Czech name
—
Czech description
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Project
<a href="/en/project/GA20-01781S" target="_blank" >GA20-01781S: Uncertainty modelling in safety formats of concrete structures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
4th International Conference on Structural Integrity and Durability. Fatigue and Fracture – Theory and Applications
ISBN
978-1-7138-3148-8
ISSN
2452-3216
e-ISSN
—
Number of pages
7
Pages from-to
147-153
Publisher name
Elsevier BV
Place of publication
Linz
Event location
Dubrovnik
Event date
Sep 15, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000681323700025

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