Towards the development of tailored steel rebars for carbonated-cured cement matrices

R. F. Felipe; M. A.M. Rezende; P. G. Corradini; M. H.A. Santiago; A. Sales; F. G.S. Ferreira; B. Huet; R. P. Nogueira; G. Y. Koga

doi:10.1016/j.conbuildmat.2024.136361

Towards the development of tailored steel rebars for carbonated-cured cement matrices

R. F. Felipe
, M. A.M. Rezende
, P. G. Corradini
, M. H.A. Santiago
, A. Sales
, F. G.S. Ferreira
, B. Huet
, R. P. Nogueira
, G. Y. Koga

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

1 Scopus citations

Abstract

The passivation ability of steels with low chromium contents (4% and 6%) in a solution representative of carbonated-cured concrete matrices was compared to conventional carbon steel rebars. Samples were investigated through multiple electrochemical methods, and the passive film was evaluated using x-ray photoelectron spectroscopy. Results showed that carbon steel rebars are vulnerable to corroding in carbonated-cured pore solutions, while the low chromium steels showed spontaneous, rapid and effective passivation. The study demonstrated the possibility of producing tailored low chromium steels as a durable alternative to carbon steel while being more affordable than stainless steel, contributing to more sustainable, innovative reinforced concretes.

Original language	British English
Article number	136361
Journal	Construction and Building Materials
Volume	429
DOIs	https://doi.org/10.1016/j.conbuildmat.2024.136361
State	Published - 24 May 2024

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 13 Climate Action

Keywords

Carbon Capture and Storage
Corrosion
Passivation
Reinforced concrete
Sustainability

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10.1016/j.conbuildmat.2024.136361

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title = "Towards the development of tailored steel rebars for carbonated-cured cement matrices",

abstract = "The passivation ability of steels with low chromium contents (4\% and 6\%) in a solution representative of carbonated-cured concrete matrices was compared to conventional carbon steel rebars. Samples were investigated through multiple electrochemical methods, and the passive film was evaluated using x-ray photoelectron spectroscopy. Results showed that carbon steel rebars are vulnerable to corroding in carbonated-cured pore solutions, while the low chromium steels showed spontaneous, rapid and effective passivation. The study demonstrated the possibility of producing tailored low chromium steels as a durable alternative to carbon steel while being more affordable than stainless steel, contributing to more sustainable, innovative reinforced concretes.",

keywords = "Carbon Capture and Storage, Corrosion, Passivation, Reinforced concrete, Sustainability",

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doi = "10.1016/j.conbuildmat.2024.136361",

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AU - Felipe, R. F.

AU - Rezende, M. A.M.

AU - Corradini, P. G.

AU - Santiago, M. H.A.

AU - Sales, A.

AU - Ferreira, F. G.S.

AU - Huet, B.

AU - Nogueira, R. P.

AU - Koga, G. Y.

PY - 2024/5/24

Y1 - 2024/5/24

N2 - The passivation ability of steels with low chromium contents (4% and 6%) in a solution representative of carbonated-cured concrete matrices was compared to conventional carbon steel rebars. Samples were investigated through multiple electrochemical methods, and the passive film was evaluated using x-ray photoelectron spectroscopy. Results showed that carbon steel rebars are vulnerable to corroding in carbonated-cured pore solutions, while the low chromium steels showed spontaneous, rapid and effective passivation. The study demonstrated the possibility of producing tailored low chromium steels as a durable alternative to carbon steel while being more affordable than stainless steel, contributing to more sustainable, innovative reinforced concretes.

AB - The passivation ability of steels with low chromium contents (4% and 6%) in a solution representative of carbonated-cured concrete matrices was compared to conventional carbon steel rebars. Samples were investigated through multiple electrochemical methods, and the passive film was evaluated using x-ray photoelectron spectroscopy. Results showed that carbon steel rebars are vulnerable to corroding in carbonated-cured pore solutions, while the low chromium steels showed spontaneous, rapid and effective passivation. The study demonstrated the possibility of producing tailored low chromium steels as a durable alternative to carbon steel while being more affordable than stainless steel, contributing to more sustainable, innovative reinforced concretes.

KW - Carbon Capture and Storage

KW - Corrosion

KW - Passivation

KW - Reinforced concrete

KW - Sustainability

UR - https://www.scopus.com/pages/publications/85192137195

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DO - 10.1016/j.conbuildmat.2024.136361

M3 - Article

AN - SCOPUS:85192137195

SN - 0950-0618

VL - 429

JO - Construction and Building Materials

JF - Construction and Building Materials

M1 - 136361

ER -

Towards the development of tailored steel rebars for carbonated-cured cement matrices

Abstract

UN SDGs

Keywords

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