Influence of crack frequency on reinforcement corrosion in concrete

Arya, Chanakya; Ofori-Darko, F K

doi:10.1016/s0008-8846(96)85022-8

Cited by 102 publications

(57 citation statements)

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“…The crack frequency of transverse cracks also effects the corrosion of steel in concrete. In a study, Arya and Darko (1996) evaluated the effect of crack frequency on the corrosion of steel in concrete containing transverse cracks of same depths and total crack width of 2.4 mm. Their results (see Fig.…”

Section: Effect Of Crack Frequencymentioning

confidence: 99%

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Effect of Cracking on Corrosion of Steel in Concrete

Shaikh

2018

Int J Concr Struct Mater

101

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It is generally recognized that cracks provide easy access to ingress of chlorides in concrete and hence, the initiation of corrosion of steel in cracked concrete occurs at early stage. However, wide variety of results on the effect of crack widths on corrosion of steel in concrete are reported in many studies. Apart from crack width, the crack depths, cracking frequency and healing of cracks also influence the corrosion of steel in concrete. This paper presents a comprehensive review and summarised the results on the effect of cracking on corrosion of steel in concrete. The effect of crack widths on the diffusion of chlorides ions and carbon-dioxide is also discussed in this paper. Among all available results, a correlation between the corrosion current and the crack widths up to 0.3 mm can be established, however, no distinct trends are observed beyond that crack width. Conflicting results on the effect of crack widths on chloride ion diffusion are also reported. The longitudinal crack causes more severe corrosion of steel in concrete than transverse cracks of same width. Cracked concrete containing supplementary cementitious materials exhibited superior corrosion resistance than cracked ordinary Portland cement concrete of same width of transverse as well as longitudinal cracks. The same is also true in the case of lower water-binder ratios of cracked concrete. The increase in crack depth increased the chloride diffusion; however, the corrosion test shows an opposite trend. Conflicting results on the effect of crack frequency on corrosion of steel are also reported.

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Section: Effect Of Crack Frequencymentioning

confidence: 99%

“…Fig. 4 Effect of crack frequency on cumulative weight loss due to corrosion (Arya and Darko 1996). Fig.…”

Section: Effects Of Scmsmentioning

confidence: 99%

Effect of Cracking on Corrosion of Steel in Concrete

Shaikh

2018

Int J Concr Struct Mater

101

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“…Other researchers argue that the corrosion is mainly influenced by concrete characteristics as strength, permeability, chloride content and by the presence of cracks rather than by their opening value (Schiebl 1988;Arya and Ofori-Darko 1996;Schieble and Raupach 1997;Mohammed et al 2001). In particular Mohammed et al 2001, based on the results of an electrochemical investigations on loaded beams with different initial crack openings, evidenced a different corrosion rate only during the propagation period.…”

Section: Introductionmentioning

confidence: 99%

Reinforced Concrete Members Subjected to Cyclic Tension and Corrosion

Giordano

Mancini

Tondolo

2011

ACT

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Deterioration process due to corrosion of steel in concrete affects the performance of reinforced concrete structures both in service and ultimate conditions. Corrosion reduces the rebar section, deteriorates the surrounding concrete with the oxides expansion product and it also alters bond between steel and concrete. Moreover, in structures subjected to cyclic loading, the damage due to corrosion can be combined with the mechanical action that is present in service. In this case the initial crack pattern due to load action and to the rheological phenomena is further modified by the expansion of the oxides and by the interaction among those causes. In the present work, the results of an experimental campaign on reinforced concrete elements subjected to simultaneous corrosion and cyclic loading are shown. It is put in evidence the loss of structural performance, by effect of chemical degradation and mechanical action. The key role of the combined effect of those causes of deterioration is also confirmed by static tests performed under the condition of static loading and simultaneous corrosion.

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“…In fact, the findings concerning corrosion damage of naturally corroded steel bridge pedestals, were confirmed and are shown in Figure 4. The surface cracking due to corrosion of RC structures has been investigated by other researchers [16][17][18][19][20][21]. When the production of rust begins, it gradually builds pressure around the reinforcing steel.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Mechanical Behavior of Corroded Protruding Rebars From Unfinished Concrete Structures

G¹

2015

J Appl Mech Eng

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Influence of crack frequency on reinforcement corrosion in concrete

Cited by 102 publications

References 1 publication

Effect of Cracking on Corrosion of Steel in Concrete

Effect of Cracking on Corrosion of Steel in Concrete

Reinforced Concrete Members Subjected to Cyclic Tension and Corrosion

Mechanical Behavior of Corroded Protruding Rebars From Unfinished Concrete Structures

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