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The aim is to examine how corrosion affects the bond strength of thermo-mechanically treated rebars in concrete.

Effect of corrosion-induced cracking on bond performance of thermo-mechanically treated rebars in concrete

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Randomized trial shows bond deterioration in concrete structures due to corrosion, suggesting effective evaluation methods.

The aim is to examine how corrosion affects the bond strength of thermo-mechanically treated rebars in concrete.
Utilized pull-out specimens subjected to accelerated corrosion.
Tested 100 specimens with varying concrete compressive strength and bar diameters.
Investigated the impact of cracks and corrosion levels on bond performance.
Bond strength loss ranged from 4% to 9% with each 0.1 mm increase in crack width.
Crack width was a more critical factor than degree of corrosion in predicting bond deterioration.
Reduced concrete cover significantly increased bond strength loss rates.

Khan et al. (2026) studied this question.

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