SEM-FIB Analysis and Phase-Field Modeling of Corrosion Damage in Reinforced Concrete
Public support
Provider
Czech Science Foundation
Programme
Standard projects
Call for proposals
SGA0202600001
Main participants
České vysoké učení technické v Praze / Fakulta stavební
Contest type
VS - Public tender
Contract ID
26-22195S
Alternative language
Project name in Czech
SEM-FIB Analysis and Phase-Field Modeling of Corrosion Damage in Reinforced Concrete
Annotation in Czech
This project investigates the effect of corrosion rate on rust composition and crack propagation in reinforced concrete. A series of impressed direct current tests will be conducted at varying corrosion rates while monitoring surface crack widths. The chemical and mechanical properties of rust, particularly the ratio of iron oxides to iron hydroxy-oxides, will be analyzed using SEM-FIB (EDS, EBSD) and nanoindentation. A pioneering micro-scale study of the corroded steel and cementitious matrix interface will combine SEM-FIB and in-situ nanoindentation to derive realistic material parameters for structural modeling. The findings will be integrated into a multi-physics model to simulate corrosion cracks at different corrosion rates. The model will be validated against experimental data, assessing the hypothesis that rust composition changes with corrosion current density, allowing extrapolation of accelerated test results to natural conditions and improving the accuracy of service life predictions.
Scientific branches
R&D category
ZV - Basic research
OECD FORD - main branch
20501 - Materials engineering
OECD FORD - secondary branch
20101 - Civil engineering
OECD FORD - another secondary branch
—
CEP - equivalent branches <br>(according to the <a href="http://www.vyzkum.cz/storage/att/E6EF7938F0E854BAE520AC119FB22E8D/Prevodnik_oboru_Frascati.pdf">converter</a>)
JG - Metallurgy, metal materials<br>JN - Civil engineering<br>JP - Industrial processes and processing
Solution timeline
Realization period - beginning
Jan 1, 2026
Realization period - end
Dec 31, 2028
Project status
Z - Beginning multi-year project
Latest support payment
—
Data delivery to CEP
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data delivery code
CEP26-GA0-GA-R
Data delivery date
Apr 27, 2026
Finance
Total approved costs
6,960 thou. CZK
Public financial support
6,960 thou. CZK
Other public sources
0 thou. CZK
Non public and foreign sources
0 thou. CZK