Evaluation of Durability-Related Field Inspection Data from Concrete Bridges Under Service

• Autorzy: Konečný P. , Lehner P. , Vořechovská D. , Šomodíková M. , Horňáková M. , Rovnaníková P.

Identyfikatory

DOI

10.24425/amm.2019.131099

• Języki publikacji: EN

Abstrakty

EN

The level of de gradation of reinforced concrete bridges was evaluated based on the in-situ measurements performed on five reinforced concrete bridges under service located in the Czech Republic. The combined effect of carbonation and chlorides with respect to the corrosion of steel reinforcement, namely the pH and the amount of water-soluble chlorides, were evaluated on drilled core samples of concrete. Based on these parameters, the ratio between the concentrations of Cl^- and OH, which indicates the ability of concrete to protect reinforcement, was calculated. All the data were statistically summarized and the relationships among them were provided. The main goal of this study is to evaluate the non-proportional effect of the amount of chlorides per mass of concrete on the risk of corrosion initiation and to localize the “critical” locations in the bridges that are the most affected by the degradation effects.

Słowa kluczowe

EN

reinforced concrete bridges; field inspection; carbonation process; chloride ingress; corrosion risk

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 1
• Strony: 81--89
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., wykr.

Twórcy

autor

Konečný P.

• VSB - Technical University of Ostrava, Faculty of Civil Engineering, Ostrava-Poruba, Czech Republic

autor

Lehner P.

• VSB - Technical University of Ostrava, Faculty of Civil Engineering, Ostrava-Poruba, Czech Republic

autor

Vořechovská D.

• Brno University of Technology, Faculty of Civil Engineering, Brno, Czech Republic

autor

Šomodíková M.

• Brno University of Technology, Faculty of Civil Engineering, Brno, Czech Republic

autor

Horňáková M.

• VSB - Technical University of Ostrava, Faculty of Civil Engineering, Ostrava-Poruba, Czech Republic

autor

Rovnaníková P.

• Brno University of Technology, Faculty of Civil Engineering, Brno, Czech Republic

Bibliografia

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Uwagi

EN

1. This contribution has been developed as a part of the research project GACR 18-07949S “Probabilistic Modeling of the Durability of Reinforced Concrete Structures Considering Synergic Effect of Carbonation, Chlorides and Mechanical Action” supported by the Czech Science Foundation and of the project No. LO1408 “AdMaS UP – Advanced Materials, Structures and Technologies”, supported by the Ministry of Education, Youth and Sports of the Czech Republic under ‘National Sustainability Programme I’. We are grateful to Mr. Igor Suza from Mostní a silniční, s.r.o. company that enabled the processing of presented data from in-situ measurements carried out by him and his colleagues.

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).