On the intrinsic passivating ability of Belite-Ye'elimite-Ferrite towards carbon steel: A straightforward comparison with ordinary Portland cement

Guilherme Yuuki Koga; Blandine Albert; Virginie Roche; Ricardo Pereira Nogueira

doi:10.1016/j.corsci.2018.11.012

On the intrinsic passivating ability of Belite-Ye'elimite-Ferrite towards carbon steel: A straightforward comparison with ordinary Portland cement

Guilherme Yuuki Koga
, Blandine Albert
, Virginie Roche
, Ricardo Pereira Nogueira

Chemical and Petroleum Engineering

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

60 Scopus citations

Abstract

The quest for low-CO₂ emission alternatives to Portland cement is pushing the cement industry to develop new types of binders. Besides the need of equivalent mechanical properties, a major issue concerns the passivating ability of these new materials. Belite-Ye'elimite-Ferrite binders (BYF) are attracting increasing interest of cement developers, but there are still doubts about their intrinsic protectiveness. Carbon steel passivation in BYF leachates was studied and compared to OPC leachates through electrochemical techniques and X-ray photoelectron spectroscopy. In both media, steel was highly passivated in less than 24 h, protected by a ca 5 nm thickness film.

Original language	British English
Pages (from-to)	141-151
Number of pages	11
Journal	Corrosion Science
Volume	147
DOIs	https://doi.org/10.1016/j.corsci.2018.11.012
State	Published - Feb 2019

UN SDGs

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SDG 13 Climate Action

Keywords

EIS
Passivity
Portland cement
Steel
Sulfoaluminate cement
XPS

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10.1016/j.corsci.2018.11.012

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title = "On the intrinsic passivating ability of Belite-Ye'elimite-Ferrite towards carbon steel: A straightforward comparison with ordinary Portland cement",

abstract = "The quest for low-CO2 emission alternatives to Portland cement is pushing the cement industry to develop new types of binders. Besides the need of equivalent mechanical properties, a major issue concerns the passivating ability of these new materials. Belite-Ye'elimite-Ferrite binders (BYF) are attracting increasing interest of cement developers, but there are still doubts about their intrinsic protectiveness. Carbon steel passivation in BYF leachates was studied and compared to OPC leachates through electrochemical techniques and X-ray photoelectron spectroscopy. In both media, steel was highly passivated in less than 24 h, protected by a ca 5 nm thickness film.",

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author = "Koga, \{Guilherme Yuuki\} and Blandine Albert and Virginie Roche and \{Pereira Nogueira\}, Ricardo",

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AU - Albert, Blandine

AU - Roche, Virginie

AU - Pereira Nogueira, Ricardo

N1 - Funding Information: The authors gratefully acknowledge the financial support of the Brazilian institution CNPq (grant number 229886/2013-2 ), of the French institution ANRT (grant number 2013/1440 ), and of the LafargeHolcim group . Publisher Copyright: © 2018 Elsevier Ltd

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N2 - The quest for low-CO2 emission alternatives to Portland cement is pushing the cement industry to develop new types of binders. Besides the need of equivalent mechanical properties, a major issue concerns the passivating ability of these new materials. Belite-Ye'elimite-Ferrite binders (BYF) are attracting increasing interest of cement developers, but there are still doubts about their intrinsic protectiveness. Carbon steel passivation in BYF leachates was studied and compared to OPC leachates through electrochemical techniques and X-ray photoelectron spectroscopy. In both media, steel was highly passivated in less than 24 h, protected by a ca 5 nm thickness film.

AB - The quest for low-CO2 emission alternatives to Portland cement is pushing the cement industry to develop new types of binders. Besides the need of equivalent mechanical properties, a major issue concerns the passivating ability of these new materials. Belite-Ye'elimite-Ferrite binders (BYF) are attracting increasing interest of cement developers, but there are still doubts about their intrinsic protectiveness. Carbon steel passivation in BYF leachates was studied and compared to OPC leachates through electrochemical techniques and X-ray photoelectron spectroscopy. In both media, steel was highly passivated in less than 24 h, protected by a ca 5 nm thickness film.

KW - EIS

KW - Passivity

KW - Portland cement

KW - Steel

KW - Sulfoaluminate cement

KW - XPS

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ER -

On the intrinsic passivating ability of Belite-Ye'elimite-Ferrite towards carbon steel: A straightforward comparison with ordinary Portland cement

Abstract

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Keywords

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