On-site transient analysis for the corrosion assessment of reinforced concrete

Christodoulou, Christian; Goodier, Chris I.; Austin, Simon A.; Webb, John; Glass, Gareth K.

doi:10.1016/j.corsci.2012.05.014

Cited by 28 publications

(15 citation statements)

References 25 publications

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“…A recently completed study by some of the authors investigated the long-term benefits of the early conductive coating anode systems with a view to improving the design approach, reduce maintenance requirements and ultimately reduce initial capital costs (Christodoulou et al, 2010(Christodoulou et al, , 2012. This study examined a number of conductive coating anode systems for their longterm performance, including systems which were until today operational and others which where exhibiting significant anode deterioration and as such loss of protective current.…”

Section: Recent Developments and Discussionmentioning

confidence: 99%

“…The age of the ICCP systems that were selected for this study ranged from 17 years for the oldest to 6 years for the youngest, at the time of the interruption in 2008. The corrosion condition of the reinforcement was assessed by non-destructive electrochemical measurements including steel potentials and corrosion rate measurements (Christodoulou et al, 2012).…”

Section: Recent Developments and Discussionmentioning

confidence: 99%

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Cathodic protection on the UK's Midland Links motorway viaducts

Christodoulou

Sharifi²,

Das³

et al. 2014

Proceedings of the Institution of Civil Engineers - Bridge Engi

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The Midland Links motorway viaducts (MLMV) are a series of reinforced concrete structures comprising 21 km of elevated motorway around the outer circumference of Birmingham. Deterioration was identified early in their serviceable life due to chloride induced corrosion of the steel reinforcement. An electrochemical treatment utilising an impressed current cathodic protection (ICCP) was successfully trialled in 1987 with the first large-scale commercial application of the treatment on the network in 1991. Since then it has been the principal corrosion management strategy for the MLMV, with 740 structures currently protected by ICCP. The aim of this paper is to offer a brief historical review of the MLMV network, discuss the deterioration mechanisms and review the historical developments of ICCP together with its overall performance as a corrosion-management method. Recent developments in cathodic protection technology and secondary beneficial effects of the ICCP previously not recognised are also discussed on how they can potentially result in significant cost savings for maintenance agencies for this and other similarly protected structures.

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Section: Recent Developments and Discussionmentioning

confidence: 99%

Section: Recent Developments and Discussionmentioning

confidence: 99%

Cathodic protection on the UK's Midland Links motorway viaducts

Christodoulou

Sharifi²,

Das³

et al. 2014

Proceedings of the Institution of Civil Engineers - Bridge Engi

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“…This is a similar discussion to that raised by Dr Chris Atkins (LE1, reader's comment 2). The authors feel that this comment has been addressed in its entirety in authors' response 2 above (LE1) regarding the sensitivity of the Butler-Volmer equation and the accuracy and variability of corrosion current densities using both polarisation resistance and transient response methods (Christodoulou et al, 2010(Christodoulou et al, , 2012.…”

Section: Assessment Of Corrosion Ratesmentioning

confidence: 99%

“…These citations provide adequate explanation and further references to the mathematical and experimental analysis undertaken on the accuracy and sensitivity of the Butler-Volmer equation (Christodoulou et al, 2010). Further research was also undertaken into the accuracy and variability of corrosion current densities using both polarisation resistance and transient response methods, acknowledging their limitations, together with proposed improvements for accuracy and consistency by developing an alternative circuit model and associated mathematical derivation of corrosion current density from the frequency to the time domain (Christodoulou et al, 2012).…”

Section: Assessment Of Corrosion Ratesmentioning

confidence: 99%

Discussion: Hybrid anode concrete corrosion protection – independent study

Dodds

Christodoulou²,

Goodier

et al. 2017

Proceedings of the Institution of Civil Engineers - Constructio

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“…The proposed approach allowed the determination of values for the parameters related to corrosion of steel reinforcement such as the concrete resistance, R p , interfacial capacitance among others. In 2012 Christodoulou et al [174] studied a simplified method for the application of transient analysis to in situ RCS. The authors concluded at low i corr values the transient response analysis seemed to provide more accurate data than the information obtained from polarization resistance analysis possible due to the use of smaller perturbation and the removal of the concrete resistance.…”

Section: Concrete Resistivity (ρ)mentioning

confidence: 99%

Electrochemical Sensors for Monitoring the Corrosion Conditions of Reinforced Concrete Structures: A Review

Figueira¹

2017

Applied Sciences

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Several methods for corrosion monitoring of reinforced concrete structures (RCS) have been proposed in the last few decades. These systems may be used either in new, existing or repaired structures. The corrosion monitoring can be performed by different methodologies. These may or may not be destructive, use different degrees of complexity and cost, and provide information on the progression and kinetics of the corrosion phenomena. The destructive methods are limited to sampling. Therefore, these may not be representative of the whole structure, which is extremely important in RCS with large heterogeneities both in terms of materials used and in terms of the exposure environment. Within this context, non-destructive methods have been widely developed, which are intended to provide quick information about the entire structure. Ideally, these systems should be able to detect the corrosion state of the steel inside the concrete, the main causes of corrosion and the evolution of corrosion phenomena over time. This manuscript reviews and summarizes the actual state of the art and the main achievements in the field of electrochemical sensors based on non-destructive methods for corrosion monitoring of RCS in the last few years. The challenges and perspectives in this field will also be discussed.

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On-site transient analysis for the corrosion assessment of reinforced concrete

Cited by 28 publications

References 25 publications

Cathodic protection on the UK's Midland Links motorway viaducts

Cathodic protection on the UK's Midland Links motorway viaducts

Discussion: Hybrid anode concrete corrosion protection – independent study

Electrochemical Sensors for Monitoring the Corrosion Conditions of Reinforced Concrete Structures: A Review

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