Prediction of reinforcement corrosion due to chloride ingress and its effects on serviceability

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28399269%3A_____%2F18%3AN0000008" target="_blank" >RIV/28399269:_____/18:N0000008 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/18:00322519

Výsledek na webu

<a href="http://mech.fsv.cvut.cz/~smilauer/pdf/Prediction%20of%20reinforcement%20corrosion_Hajkova.pdf" target="_blank" >http://mech.fsv.cvut.cz/~smilauer/pdf/Prediction%20of%20reinforcement%20corrosion_Hajkova.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.engstruct.2018.08.006" target="_blank" >10.1016/j.engstruct.2018.08.006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Prediction of reinforcement corrosion due to chloride ingress and its effects on serviceability

Popis výsledku v původním jazyce

Concrete is the most common man-made material in today’s world. Embedded steel reinforcement may corrode due to chloride presence from de-icing salts or salt water, having impact on structural serviceability and life design. The paper presents a chemo-mechanical model covering initiation and propagation periods of chloride steel corrosion, taking into account concrete mix design, supplementary cementitious materials, concrete cover, crack width and environmental conditions. First, a short-term fracture-plastic constitutive model predicts cracking prior to the chloride ingress. Second, 1D model of chloride ingress yields the time of concrete cracking, spalling and the effective steel area. Third, mechanical analysis assesses the load-bearing capacity of a structure in dependence on the state of reinforcement corrosion. Validation includes two load-bearing structures loaded by chlorides; a concrete strut of a prestressed bridge in Prague, Czech Republic and Nougawa bridge, Japan.

Název v anglickém jazyce

Prediction of reinforcement corrosion due to chloride ingress and its effects on serviceability

Popis výsledku anglicky

Concrete is the most common man-made material in today’s world. Embedded steel reinforcement may corrode due to chloride presence from de-icing salts or salt water, having impact on structural serviceability and life design. The paper presents a chemo-mechanical model covering initiation and propagation periods of chloride steel corrosion, taking into account concrete mix design, supplementary cementitious materials, concrete cover, crack width and environmental conditions. First, a short-term fracture-plastic constitutive model predicts cracking prior to the chloride ingress. Second, 1D model of chloride ingress yields the time of concrete cracking, spalling and the effective steel area. Third, mechanical analysis assesses the load-bearing capacity of a structure in dependence on the state of reinforcement corrosion. Validation includes two load-bearing structures loaded by chlorides; a concrete strut of a prestressed bridge in Prague, Czech Republic and Nougawa bridge, Japan.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Engineering Structures

ISSN

0141-0296

e-ISSN

1873-7323

Svazek periodika

174

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

768-777

Kód UT WoS článku

000449126700057

EID výsledku v databázi Scopus

2-s2.0-85051138003