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Petr Konečný et al. / Procedia Structural Integrity 26 (2020) 430 –438 Author name / Structural Integrity Procedia 00 (2019) 000–000

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2. It was found that the motorway bridges are more susceptible to corrosion risk comparing to main road bridges. 3. Chloride profiles and pH values analyzed independently give similar results compared to the c(Cl - )/c(OH - ) ratio to the risk of corrosion initiation; in case of comparison the average values per all groups of main roads and motorway bridges. 4. Future research will be aimed at the influence of the strength classes with respect to evaluated parameters of chloride profiles, pH concentration and the c(Cl - )/c(OH - ) ratios and bridge classes. Acknowledgments 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. The authors are grateful to Mr. Igor Suza from the company Mostní a silniční, s.r.o., that enabled the processing of presented data from in-situ measurements carried out by him and his colleagues. References S. Seitl, P. Miarka, V. Bílek, The mixed-mode fracture resistance of C 50/60 and its suitability for use in precast elements as determined by the Brazilian disc test and three-point bending specimens, Theor. Appl. Fract. Mech. 97 (2018). https://doi.org/10.1016/j.tafmec.2018.08.003. P. Konečný, P. Lehner, P. Ghosh, Q. Tran, Variation of diffusion coefficient for selected binary and ternary concrete mixtures considering concrete aging effect, in: Key Eng. Mater., 2018. https://doi.org/10.4028/www.scientific.net/KEM.761.144. P. Ghosh, Q. Tran, Correlation Between Bulk and Surface Resistivity of Concrete, Int. J. Concr. Struct. Mater. 9 (2015). https://doi.org/10.1007/s40069-014-0094-z. D. Darwin, J. Browning, M. O’Reilly, L. Xing, J. Ji, Critical chloride corrosion threshold of galvanized reinforcing bars, ACI Mater. J. 106 (2009). https://doi.org/10.14359/56465. R. E. Weyers, W. Pyc, M. M. Sprinkel, Estimating the Service Life of Epoxy-Coated Reinforcing Steel, ACI Mater. J. 95 (1998). A. Raharinaivo, J.M. R. Genin, On the corrosion of reinforcing steels in concrete, in the presence of chlorides, Mater. Construcción. 36 (1986). D. Vořechovská, P. Konečný, M. Šomodíková, P. Rovnaníková, Preliminary analysis of durability related field inspection of highway bridge No. 57-039, IASTEM 2018 (2018). S. Helland, S. Norge, O. Norway, Performance-Based Service Life Design in the 2021 Version of the European Concrete Standards-Ambitions and Challenges, Symp. 2016 Performance-Based Approaches Concr. Struct., (2016). D. Novák, M. Vořechovský, B. Teplý, Software for statistical and reliability analysis of engineering problems and FReEt: Degradation module, Adv. Eng. Softw. (2014). D. Matesová, B. Teplý, J. Podroužek, M. Chromá, Probabilistic modeling of steel corrosion in RC structures, (2007) A. Boddy, E. Bentz, M.D.A. Thomas, R.D. Hooton, An overview and sensitivity study of a multimechanistic chloride transport model, Cem. Concr. Res. (1999). M.G. Stewart, D. V. Rosowsky, Time-dependent reliability of deteriorating reinforced concrete bridge deck, Struct. Saf. 20 (1998). P. Ghosh, P. Konečný, P.J. Tikalsky, SBRA model for corrosion initiation of concrete structures, RILEM Bookseries. 5 (2011) 85–100. https://doi.org/10.1007/978-94-007-0677-4_5. P. Lehner, P. Konečný, P. Ghosh, Q. Tran, Numerical analysis of chloride diffusion considering time-dependent diffusion coefficient. International Journal of Mathematics and Computers in Simulation, Int. J. Math. Comput. Simul. 8 (2014). D. Vořechovská, J. Podroužek, M. Chromá, P. Rovnaníková, B. Teplý, Modelling of Chloride Concentration Effect on Reinforcement Corrosion, Comput. Civ. Infrastruct. Eng. 24 (2009). E.C. Bentz, M.D.A. Thomas, Life-365 User Man. (2013). FIB, Model Code 2010, fib Bulletins No. 65 and 66, 2012 and fib Bulletin No. 34, “Service Life Design,” Lausanne, Switzerland, (2006). JCSS, Probabilistic Model Code, Joint Committee on Structural Safety, (2001). P. Konecny, P. Lehner, Effect of cracking and randomness of inputs on corrosion initiation of reinforced concrete bridge decks exposed to chlorides, Frat. Ed Integrita Strutt. 11 (2017). C. Andrade, fib T.8.3: Operational document to support Service Life Design, (2016). Shortened diagnostic explorations of bridges No. 54-040, 55I-026a, 55I-030, 55-033, 57-039 (In Czech: Zkrácené diagnostické průzkumy mostů ev.č. 54-040, 55I-026a, 55I-030, 55-033, 57-039), 2013-2016 (unpublished), Brno, Czech Republic, (2016). European Standard, Management. (2004) 225. EN 206-1, EN 206-1, Institution., British Standards, 2000. https://shop.bsigroup.com/ProductDetail/?pid=000000000030148156.