Project detail

Probabilistic Modeling of the Durability of Reinforced Concrete Structures Considering Synergic Effect of Carbonation, Chlorides and Mechanical Action

Duration: 01.01.2018 — 31.12.2020

Funding resources

Czech Science Foundation - Standardní projekty

- whole funder (2018-01-19 - 2020-12-31)

On the project

Pravděpodobnostní modelování trvanlivosti železobetonových konstrukcí s uvážením spolupůsobení karbonatace, chloridů a mechanického zatížení.

Description in English
The proposed project is focused on the development and enhancement of the methodology for the assessment of durability of reinforced concrete structures suitable for effective utilization. The focus is on the synergic effect of the carbonation, chlorides and mechanical damage on the occurrence of reinforcement corrosion. The effect of the mentioned phenomena will be examined for the structures in the mild climate zone that are exposed to chloride effect, e.g. from de-icing agents, and carbonation due to the presence of carbon dioxide in the atmosphere. Laboratory experiments will be focused on the corrosion initiation due to chlorides and carbonation. In-situ experiments will consist of the assessment of the deposition level and chlorides penetration. Moreover an extensive database of the measured chloride profiles from the exposed bridges of various ages will be organized and utilized. Such combination of the results will enable improvement of numerical models and methodology for fully probabilistic assessment of the service-life of actual or newly designed structures.

Keywords
Pravděpodobnostní modelování, trvanlivost, spolupůsobení chloridů a karbonatace.

Key words in English
Reliability, durability of structures, concrete, bridges, corrosion, steel reinforcement, chlorides, diffusion, carbonation, deposition, critical concentration, simulation, Monte Carlo, Latin Hypercube Sampling, finite elements, experiment, probabilistic modeling.

Mark

18-07949S

Default language

Czech

People responsible

Rovnaníková Pavla, prof. RNDr., CSc. - fellow researcher
Sadílková Šomodíková Martina, Ing., Ph.D. - fellow researcher
Štefániková Hana - fellow researcher
Vořechovská Dita, Ing., Ph.D. - fellow researcher
Teplý Břetislav, prof. Ing., CSc. - principal person responsible

Units

Institute of Structural Mechanics
- co-beneficiary (2018-04-03 - not assigned)
Institute of Chemistry
- co-beneficiary (2018-04-03 - not assigned)

Results

ŠOMODÍKOVÁ, M.; STRAUSS, A.; ZAMBON, I.; TEPLÝ, B. Quantification of parameters for modeling of chloride ion ingress into concrete. Structural Concrete, 2019, vol. 2019, no. 20, p. 519-536. ISSN: 1464-4177.
Detail

KONEČNÝ, P.; HORŇÁKOVÁ, M.; LEHNER, P.; ROVNANÍKOVÁ, P.; SÝKORA, M. Model uncertainty in diffusion coefficient for chloride ingress into concrete. In Procedia Structural Integrity. Procedia Structural Integrity. AMSTERDAM: Elsevier, 2021. p. 147-153. ISSN: 2452-3216.
Detail

TEPLÝ, B. PůSOBENÍ CHLORIdů NA BETON: SOUVISLOSTI, důSLEdKY, MOdELOVÁNÍ, TESTOVÁNÍ, SOUčASNÝ STAV POZNÁNÍ. Beton TKS, 2019, roč. 2018, č. 6, s. 62-65. ISSN: 1213-3116.
Detail

ROVNANÍKOVÁ, P.; VOŘECHOVSKÁ, D. Threshold of the chloride to hydroxide ions ratio in relation to steel reinforcement corrosion. In IOP Conference Series: Materials Science and Engineering. IOP Conference Series: Materials Science and Engineering. United Kingdom: IOP Publishing, 2019. p. 1-6. ISSN: 1757-899X.
Detail

LEHNER, P.; HRABOVÁ, K.; GHOSH, P.; KONEČNÝ, P.; TEPLÝ, B. Efektivní hodnocení trvalé udržitelnosti betonu s přírodním pucolánem. Beton TKS, 2020, č. 3, s. 52-55. ISSN: 1213-3116.
Detail

KONEČNÝ, P.; GHOSH, P.; HRABOVÁ, K.; LEHNER, P.; TEPLÝ, B. Effective methodology of sustainability assessment of concrete mixtures. Materials and Structures, 2020, vol. 53, no. 4, p. 1-15. ISSN: 1359-5997.
Detail

HRABOVÁ, K.; VOŘECHOVSKÁ, D.; TEPLÝ, B. Potential for the iclusion of sustainability aspects in limit states for concrete. In 20th International Multidisciplinary Scientific Geoconference: Nano, Bio and Green - Technologies for a Sustainable Future, SGEM 2020. International multidisciplinary geoconference SGEM. Bulgaria: SGEM Conference, 2020. p. 411-418. ISSN: 1314-2704.
Detail

MIARKA, P.; SEITL, S.; HORŇÁKOVÁ, M.; LEHNER, P.; KONEČNÝ, P.; SUCHARDA, O.; BÍLEK, V. Influence of chlorides on the fracture toughness and fracture resistance under the mixed mode I/II of high-performance concrete. Theoretical and Applied Fracture Mechanics, 2020, vol. 110, no. 102812, p. 1-15. ISSN: 0167-8442.
Detail

KONEČNÝ, P.; LEHNER, P.; VOŘECHOVSKÁ, D.; ŠOMODÍKOVÁ, M.; HORŇÁKOVÁ, M.; ROVNANÍKOVÁ, P. Approximation of the bridge deck diffusion coefficient and surface chloride concentration from field data. In 9th International Scientific Conference on Research and Development of Mechanical Elements and Systems, IRMES 2019. IOP Conference Series: Materials Science and Engineering. Kragujevac, Serbia: IOP Publishing, 2019, 2019. p. 1-13. ISSN: 1757-8981.
Detail

ŠOMODÍKOVÁ, M.; STRAUSS, A.; ZAMBON, I. fib models for modeling of chloride ion ingress and concrete carbonation: Levels of assessment of input parameters. Structural Concrete, 2020, vol. 21, no. 4, p. 1377-1384. ISSN: 1464-4177.
Detail

KONEČNÝ, P.; LEHNER, P.; VOŘECHOVSKÁ, D.; ŠOMODÍKOVÁ, M.; HORŇÁKOVÁ, M.; ROVNANÍKOVÁ, P. Evaluation of durability-related field inspection data from concrete bridges under service. Archives of Metallurgy and Materials, 2020, vol. 65, no. 1, p. 81-89. ISSN: 2300-1909.
Detail

KONEČNÝ, P.; VOŘECHOVSKÁ, D.; ŠOMODÍKOVÁ, M.; HORŇÁKOVÁ, M.; ROVNANÍKOVÁ, P. Extended evaluation of durability-related field inspection data from concrete bridges under service. In Procedia Structural Integrity - The 1st Mediterranean Conference on Fracture and Structural Integrity, MedFract1. Procedia Structural Integrity. 2020. p. 430-438. ISSN: 2452-3216.
Detail

VOŘECHOVSKÁ, D.; KONEČNÝ, P.; ŠOMODÍKOVÁ, M.; ROVNANÍKOVÁ, P. Preliminary analysis of durability related field inspection of reinforced concrete bridge. Proceedings of the International Conference on Sustainable Materials Systems and Structures (SMSS2019) Durability, Monitoring and Repair of Structures. USA: 2019. p. 527-533. ISBN: 978-2-35158-218-3.
Detail

Lehner, P., Kubzová, M., Křivý, V., Konečný, P., Bujdoš, D., Rovnaníková, P. Correlation between surface concentration of chloride ions and chloride deposition rate in concrete. Construction and building materials, 2022, vol. 320, no. 126183, p. 1-11. ISSN: 0950-0618.
Detail

VOŘECHOVSKÁ, D.; KONEČNÝ, P.; ŠOMODÍKOVÁ, M.; ROVNANÍKOVÁ, P. Preliminary analysis of durability related field inspection of highway bridge No. 57-039. In IASTEM 2018. London, UK: 2018. p. 55-58. ISBN: 978-1-4503-6287-0.
Detail

Responsibility: Teplý Břetislav, prof. Ing., CSc.