Effects of non-uniform corrosion on the cracking and service life of reinforced concrete structures

Jang, Bong Seok; Oh, Byung Hwan

doi:10.1016/j.cemconres.2010.03.018

Cited by 159 publications

(49 citation statements)

References 13 publications

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“…The tensile stresses created in con crete by localized corrosion of the reinforcements are far more dangerous than stresses created by uniform corrosion. The pres sures to cause cracking of the concrete cover under non uniform corrosion conditions are proven to be much smaller than under uniform corrosion [41].…”

Section: Study On Attack Morphologymentioning

confidence: 99%

Influence of the forming process of corrugated stainless steels on their corrosion behaviour in simulated pore solutions

et al. 2012

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a b s t r a c tStainless steels are formed by either hot working (HW) or cold working (CW) when used as reinforcement for concrete structures. The influence of the forming process on the corrosion behaviour is analyzed in depth in the present work. CW and HW corrugated bars of austenitic AISI 304L and 316L, and duplex SAF 2205 grades are studied. The electrochemical behaviour of the corrugated surface and the core of these materials are characterized by Mott Schottky analysis and polarization curves. Tests are carried out in both carbonated and non carbonated Ca(OH) 2 solutions. The microstructure and local mechanical properties of these materials are also analysed by means of universal hardness (UH) measurements to complete available information. The results prove that the surface of corrugated bars is far more likely to suffer corrosion than the core of the same material. The corrosion probability and the morphology of the attack induced in corrugated surfaces by anodic polarization clearly differ in HW and CW bars.

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Section: Study On Attack Morphologymentioning

confidence: 99%

Influence of the forming process of corrugated stainless steels on their corrosion behaviour in simulated pore solutions

et al. 2012

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“…Some studies have addressed the loss of cross-sectional area of reinforcing rebars (e.g., [17][18][19]). Anderson-Wile et al [20] conducted a comprehensive investigation to study the corrosion of some metals such as stainless steel.…”

Section: Introductionmentioning

confidence: 99%

Strengthening of Corroded Reinforced SCC-RAP Members with CFRP

Abdel-Mohti

Shen

2016

Fibers

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Corrosion is one of the major problems affecting the durability of reinforced concrete (RC) structures. This paper investigates the effect of rebar corrosion on the performance of reinforced self-consolidating concrete (SCC) members and the effectiveness of repair. A control RC member, which has no corrosion problem, was prepared to compare against corroded and repaired members. A number of reinforced concrete members having up to 50% corrosion level were constructed and tested to study the effect of corrosion on the structural performance of RC members. The beams with corrosion problem were repaired using carbon fiber reinforced polymer (CFRP) sheets and U-wraps. All of the beams constructed, which are either not repaired or repaired, in this study were tested under two static line loads until failure. The effect of corrosion and effectiveness of repairing technique were assessed by evaluating the performance in terms of load carrying capacity, deflection, and ductility. Test results revealed that as the corrosion level increases, the loss in load carrying capacity increases. Repairing using CFRP improved the performance of corroded members. For example, when 50% corrosion level was achieved, the beam lost approximately 57% of its load carrying capacity, but when it was repaired, it recovered about 42% of its load carrying capacity.

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“…3). Experimental results indicate that pitting factor approximately falls in the range of 4-8 [5][6][7][8]. However, due to a lack of comprehensive understanding of localized corrosion mechanism in concrete, previous quantitative depictions of pitting configuration are mostly based on statistical characterization of maximum pit depths by assuming a Gumbel distribution for pitting factor [9,10].…”

Section: Introductionmentioning

confidence: 99%

3D simulation of localized steel corrosion in chloride contaminated reinforced concrete

Cao¹

2014

Construction and Building Materials

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Effects of non-uniform corrosion on the cracking and service life of reinforced concrete structures

Cited by 159 publications

References 13 publications

Influence of the forming process of corrugated stainless steels on their corrosion behaviour in simulated pore solutions

Influence of the forming process of corrugated stainless steels on their corrosion behaviour in simulated pore solutions

Strengthening of Corroded Reinforced SCC-RAP Members with CFRP

3D simulation of localized steel corrosion in chloride contaminated reinforced concrete

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