Service life prediction of RC structures based on correlation between electrochemical and gravimetric reinforcement corrosion rates

Saeid A. Alghamdi; Shamsad Ahmad

doi:10.1016/j.cemconcomp.2013.06.003

Service life prediction of RC structures based on correlation between electrochemical and gravimetric reinforcement corrosion rates

Saeid A. Alghamdi^*
, Shamsad Ahmad

^*Corresponding author for this work

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

39 Scopus citations

Abstract

This paper outlines a comprehensive experimental investigation to establish relationships between electrochemically and gravimetrically measured reinforcement corrosion rates generated through a comprehensive experimental program. The investigation is based on testing a total number of 486 reinforced concrete (RC) specimens prepared using coarse aggregates obtained from two distinctly different sources of aggregate and considering three levels of five design variables (namely: cementitious material contents, water to cementitious materials ratios, fine to total aggregate ratios, concrete-cover thicknesses, and exposure to chloride-solutions). The correlation between corrosion rates measured using electrochemical method to that using gravimetric method is established and used to convert electrochemically measured corrosion rate into equivalent but more accurate gravimetric corrosion rate that would be valuable for service life prediction of RC members RC structures in corrosive environments. The experimental program and sample numerical results obtained are outlined and summarized. Then a methodology for predicting remaining service life of corroding RC members is illustrated through a numerical example.

Original language	English
Pages (from-to)	64-68
Number of pages	5
Journal	Cement and Concrete Composites
Volume	47
DOIs	https://doi.org/10.1016/j.cemconcomp.2013.06.003
State	Published - Mar 2014

Bibliographical note

Funding Information:
This research work was conducted with financial funding from King Abdulaziz City for Science and Technology (Riyadh) under KACST Project AT-23-21. The researchers would also like to acknowledge with appreciation the logistical support and utilization of research facilities at King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Kingdom of Saudi Arabia.

Keywords

Corrosion current density
Gravimetric weight loss method
Linear polarization resistance method
Reinforced concrete
Service life prediction

ASJC Scopus subject areas

Building and Construction
General Materials Science

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10.1016/j.cemconcomp.2013.06.003

Cite this

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title = "Service life prediction of RC structures based on correlation between electrochemical and gravimetric reinforcement corrosion rates",

abstract = "This paper outlines a comprehensive experimental investigation to establish relationships between electrochemically and gravimetrically measured reinforcement corrosion rates generated through a comprehensive experimental program. The investigation is based on testing a total number of 486 reinforced concrete (RC) specimens prepared using coarse aggregates obtained from two distinctly different sources of aggregate and considering three levels of five design variables (namely: cementitious material contents, water to cementitious materials ratios, fine to total aggregate ratios, concrete-cover thicknesses, and exposure to chloride-solutions). The correlation between corrosion rates measured using electrochemical method to that using gravimetric method is established and used to convert electrochemically measured corrosion rate into equivalent but more accurate gravimetric corrosion rate that would be valuable for service life prediction of RC members RC structures in corrosive environments. The experimental program and sample numerical results obtained are outlined and summarized. Then a methodology for predicting remaining service life of corroding RC members is illustrated through a numerical example.",

keywords = "Corrosion current density, Gravimetric weight loss method, Linear polarization resistance method, Reinforced concrete, Service life prediction",

author = "Alghamdi, \{Saeid A.\} and Shamsad Ahmad",

note = "Funding Information: This research work was conducted with financial funding from King Abdulaziz City for Science and Technology (Riyadh) under KACST Project AT-23-21. The researchers would also like to acknowledge with appreciation the logistical support and utilization of research facilities at King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Kingdom of Saudi Arabia. ",

year = "2014",

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doi = "10.1016/j.cemconcomp.2013.06.003",

language = "English",

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AU - Alghamdi, Saeid A.

AU - Ahmad, Shamsad

N1 - Funding Information: This research work was conducted with financial funding from King Abdulaziz City for Science and Technology (Riyadh) under KACST Project AT-23-21. The researchers would also like to acknowledge with appreciation the logistical support and utilization of research facilities at King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Kingdom of Saudi Arabia.

PY - 2014/3

Y1 - 2014/3

N2 - This paper outlines a comprehensive experimental investigation to establish relationships between electrochemically and gravimetrically measured reinforcement corrosion rates generated through a comprehensive experimental program. The investigation is based on testing a total number of 486 reinforced concrete (RC) specimens prepared using coarse aggregates obtained from two distinctly different sources of aggregate and considering three levels of five design variables (namely: cementitious material contents, water to cementitious materials ratios, fine to total aggregate ratios, concrete-cover thicknesses, and exposure to chloride-solutions). The correlation between corrosion rates measured using electrochemical method to that using gravimetric method is established and used to convert electrochemically measured corrosion rate into equivalent but more accurate gravimetric corrosion rate that would be valuable for service life prediction of RC members RC structures in corrosive environments. The experimental program and sample numerical results obtained are outlined and summarized. Then a methodology for predicting remaining service life of corroding RC members is illustrated through a numerical example.

AB - This paper outlines a comprehensive experimental investigation to establish relationships between electrochemically and gravimetrically measured reinforcement corrosion rates generated through a comprehensive experimental program. The investigation is based on testing a total number of 486 reinforced concrete (RC) specimens prepared using coarse aggregates obtained from two distinctly different sources of aggregate and considering three levels of five design variables (namely: cementitious material contents, water to cementitious materials ratios, fine to total aggregate ratios, concrete-cover thicknesses, and exposure to chloride-solutions). The correlation between corrosion rates measured using electrochemical method to that using gravimetric method is established and used to convert electrochemically measured corrosion rate into equivalent but more accurate gravimetric corrosion rate that would be valuable for service life prediction of RC members RC structures in corrosive environments. The experimental program and sample numerical results obtained are outlined and summarized. Then a methodology for predicting remaining service life of corroding RC members is illustrated through a numerical example.

KW - Corrosion current density

KW - Gravimetric weight loss method

KW - Linear polarization resistance method

KW - Reinforced concrete

KW - Service life prediction

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U2 - 10.1016/j.cemconcomp.2013.06.003

DO - 10.1016/j.cemconcomp.2013.06.003

M3 - Article

AN - SCOPUS:84893761635

SN - 0958-9465

VL - 47

SP - 64

EP - 68

JO - Cement and Concrete Composites

JF - Cement and Concrete Composites

ER -

Service life prediction of RC structures based on correlation between electrochemical and gravimetric reinforcement corrosion rates

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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Cite this