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%2F61989100%3A27120%2F21%3A10247857" target="_blank" >RIV/61989100:27120/21:10247857 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26110/21:PU144000

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2452321621000263" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2452321621000263</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

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&apos;s Law model and approximation of chloride profile from destructive penetration tests is usually utilised. 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 com-pared to the estimates based on chloride profiles. (C) 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSID 2020 Organizers.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

<a href="/en/project/GA18-07949S" target="_blank" >GA18-07949S: Probabilistic Modeling of the Durability of Reinforced Concrete Structures Considering Synergic Effect of Carbonation, Chlorides and Mechanical Action</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

Procedia Structural Integrity. Volume 31

ISBN

—

ISSN

2452-3216

e-ISSN

—

Number of pages

7

Pages from-to

147-153

Publisher name

Elsevier

Place of publication

Amsterdam

Event location

Univ Zagreb

Event date

Sep 15, 2020

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000681323700025