Chloride-induced reinforcing steel corrosion in ternary concretes containing fly ash and untreated sugarcane bagasse ash

Víctor Alberto Franco-Luján; Marco Antonio Maldonado-García; José Manuel Mendoza-Rangel; Pedro Montes-García

doi:10.1016/j.conbuildmat.2018.12.004

Chloride-induced reinforcing steel corrosion in ternary concretes containing fly ash and untreated sugarcane bagasse ash

Víctor Alberto Franco-Luján, Marco Antonio Maldonado-García, José Manuel Mendoza-Rangel, Pedro Montes-García

Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional (CIIDIR),Unidad Oaxaca

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	608-618
Number of pages	11
Journal	Construction and Building Materials
Volume	198
DOIs	https://doi.org/10.1016/j.conbuildmat.2018.12.004
State	Published - 20 Feb 2019

Keywords

Corrosion
Ecological concretes
Electrochemical techniques
Long-term durability
Untreated sugarcane bagasse ash

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10.1016/j.conbuildmat.2018.12.004

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title = "Chloride-induced reinforcing steel corrosion in ternary concretes containing fly ash and untreated sugarcane bagasse ash",

abstract = "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.",

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AU - Franco-Luján, Víctor Alberto

AU - Maldonado-García, Marco Antonio

AU - Mendoza-Rangel, José Manuel

AU - Montes-García, Pedro

PY - 2019/2/20

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AB - 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.

KW - Corrosion

KW - Ecological concretes

KW - Electrochemical techniques

KW - Long-term durability

KW - Untreated sugarcane bagasse ash

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JO - Construction and Building Materials

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ER -

Chloride-induced reinforcing steel corrosion in ternary concretes containing fly ash and untreated sugarcane bagasse ash

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Keywords

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