Abstract
The aim of this paper is to make an initial evaluation of chloride-induced corrosion behaviour of steel in alkali-activated fly ash and compare it to behaviour of classical cement mortar. Fly ash used in this research was obtained from regional production and was activated with sodium silicate and sodium hydroxide. Setup for evaluating corrosion behaviour consisted of structural steel plate covered with mortar layer under tap water or simulated seawater solutions. Corrosion behaviour of structural steel plates was monitored by Open Circuit Potential (OCP) and Linear Polarization (LP). The mortars have been additionally characterized by their mechanical properties, pore structure obtained by mercury intrusion porosimetry (MIP), electrical resistivity and chloride migration according to NT BUILD 492.
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Acknowledgements
Research presented in this paper was performed within project DuRSAAM, which has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 813596. Research is also supported by the project “Alternative Binders for Concrete: understanding microstructure to predict durability, ABC”, funded by the Croatian Science Foundation under number UIP-05-2017.
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Runci, A., Serdar, M. (2021). Comparison of Chloride-Induce Corrosion of Steel in Cement and Alkali-Activated Fly Ash Mortars. In: Valente, I.B., Ventura Gouveia, A., Dias, S.S. (eds) Proceedings of the 3rd RILEM Spring Convention and Conference (RSCC 2020). RSCC 2020. RILEM Bookseries, vol 33. Springer, Cham. https://doi.org/10.1007/978-3-030-76551-4_42
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