Chloride-induced reinforcing steel corrosion in ternary concretes containing fly ash and untreated sugarcane bagasse ash
Autor: | Víctor Alberto Franco-Luján, Marco Antonio Maldonado-García, J. M. Mendoza-Rangel, Pedro Montes-García |
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Rok vydání: | 2019 |
Předmět: |
Materials science
Diffusion 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction Chloride 0201 civil engineering Corrosion Compressive strength Fly ash 021105 building & construction medicine General Materials Science Composite material Ternary operation Bagasse Civil and Structural Engineering medicine.drug |
Zdroj: | Construction and Building Materials. 198:608-618 |
ISSN: | 0950-0618 |
Popis: | The corrosion of reinforced ternary concretes containing fly ash (FA) and untreated sugarcane bagasse ash (UtSCBA) was evaluated. Chloride-ion diffusion at 28 and 90 days, as well as microstructural properties, percentage of voids, and compressive strength (CS) in cylinders were evaluated at 2500 days of age. Moreover, corrosion was monitored in prismatic specimens exposed to a NaCl solution by corrosion potentials and linear polarization resistance techniques. Results show that the combination of FA plus UtSCBA decreased the chloride-ion diffusion and did not affect the compressive strength (CS) of the concrete. For the studied concretes, the combination of FA plus UtSCBA appears a suitable option against chloride-induced corrosion. |
Databáze: | OpenAIRE |
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