Analysis of naturally-generated corrosion products due to chlorides in 20-year old reinforced concrete: An elastic modulus-mineralogy characterization

Emanuele Rossi; Hongzhi Zhang; Santiago J. Garcia; Johan Bijleveld; Timo G. Nijland; Oğuzhan Çopuroğlu; Rob B. Polder; Branko Šavija

doi:10.1016/j.corsci.2021.109356

Analysis of naturally-generated corrosion products due to chlorides in 20-year old reinforced concrete: An elastic modulus-mineralogy characterization

Emanuele Rossi^*, Hongzhi Zhang, Santiago J. Garcia, Johan Bijleveld, Timo G. Nijland, Oğuzhan Çopuroğlu, Rob B. Polder, Branko Šavija

^*Corresponding author for this work

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

10 Citations (Scopus)

73 Downloads (Pure)

Abstract

The elastic modulus of corrosion product (E_cp) has been reported with significant variations in the literature. This study aims to investigate the E_cp of naturally-generated chloride-induced corrosion products formed in different concrete mixes. Microstructural characterization was conducted through nano-indentation, electron microscopy and Raman spectroscopy. The corrosion products were mainly composed of a goethite matrix with portions of maghemite, independently of the concrete composition. Microscopic analysis suggest that layers of corrosion products grow at different times and under different physico-chemical conditions. Our measurements showed that E_cp varied between 80−100 GPa, which can be suggested for numerical models of corrosion induced cracking.

Original language	English
Article number	109356
Pages (from-to)	1-13
Number of pages	13
Journal	Corrosion Science
Volume	184
DOIs	https://doi.org/10.1016/j.corsci.2021.109356
Publication status	Published - 2021

Keywords

Corrosion (C)
Raman spectroscopy (B)
SEM (B)
Steel reinforced concrete (A)
XRD (B)

Access to Document

10.1016/j.corsci.2021.109356

1-s2.0-S0010938X21001220-mainFinal published version, 13.6 MBLicence: CC BY

Cite this

@article{dcdd1101e0c049fd860736d4496cbce6,

title = "Analysis of naturally-generated corrosion products due to chlorides in 20-year old reinforced concrete: An elastic modulus-mineralogy characterization",

abstract = "The elastic modulus of corrosion product (Ecp) has been reported with significant variations in the literature. This study aims to investigate the Ecp of naturally-generated chloride-induced corrosion products formed in different concrete mixes. Microstructural characterization was conducted through nano-indentation, electron microscopy and Raman spectroscopy. The corrosion products were mainly composed of a goethite matrix with portions of maghemite, independently of the concrete composition. Microscopic analysis suggest that layers of corrosion products grow at different times and under different physico-chemical conditions. Our measurements showed that Ecp varied between 80−100 GPa, which can be suggested for numerical models of corrosion induced cracking.",

keywords = "Corrosion (C), Raman spectroscopy (B), SEM (B), Steel reinforced concrete (A), XRD (B)",

author = "Emanuele Rossi and Hongzhi Zhang and Garcia, {Santiago J.} and Johan Bijleveld and Nijland, {Timo G.} and Oğuzhan {\c C}opuroğlu and Polder, {Rob B.} and Branko {\v S}avija",

year = "2021",

doi = "10.1016/j.corsci.2021.109356",

language = "English",

volume = "184",

pages = "1--13",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier",

}

TY - JOUR

T1 - Analysis of naturally-generated corrosion products due to chlorides in 20-year old reinforced concrete

T2 - An elastic modulus-mineralogy characterization

AU - Rossi, Emanuele

AU - Zhang, Hongzhi

AU - Garcia, Santiago J.

AU - Bijleveld, Johan

AU - Nijland, Timo G.

AU - Çopuroğlu, Oğuzhan

AU - Polder, Rob B.

AU - Šavija, Branko

PY - 2021

Y1 - 2021

N2 - The elastic modulus of corrosion product (Ecp) has been reported with significant variations in the literature. This study aims to investigate the Ecp of naturally-generated chloride-induced corrosion products formed in different concrete mixes. Microstructural characterization was conducted through nano-indentation, electron microscopy and Raman spectroscopy. The corrosion products were mainly composed of a goethite matrix with portions of maghemite, independently of the concrete composition. Microscopic analysis suggest that layers of corrosion products grow at different times and under different physico-chemical conditions. Our measurements showed that Ecp varied between 80−100 GPa, which can be suggested for numerical models of corrosion induced cracking.

AB - The elastic modulus of corrosion product (Ecp) has been reported with significant variations in the literature. This study aims to investigate the Ecp of naturally-generated chloride-induced corrosion products formed in different concrete mixes. Microstructural characterization was conducted through nano-indentation, electron microscopy and Raman spectroscopy. The corrosion products were mainly composed of a goethite matrix with portions of maghemite, independently of the concrete composition. Microscopic analysis suggest that layers of corrosion products grow at different times and under different physico-chemical conditions. Our measurements showed that Ecp varied between 80−100 GPa, which can be suggested for numerical models of corrosion induced cracking.

KW - Corrosion (C)

KW - Raman spectroscopy (B)

KW - SEM (B)

KW - Steel reinforced concrete (A)

KW - XRD (B)

UR - http://www.scopus.com/inward/record.url?scp=85102004162&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2021.109356

DO - 10.1016/j.corsci.2021.109356

M3 - Article

AN - SCOPUS:85102004162

SN - 0010-938X

VL - 184

SP - 1

EP - 13

JO - Corrosion Science

JF - Corrosion Science

M1 - 109356

ER -

Analysis of naturally-generated corrosion products due to chlorides in 20-year old reinforced concrete: An elastic modulus-mineralogy characterization

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this