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Table 3 Frequencies in kHz identified during pullout tests

From: Investigation into corrosion-induced bond degradation between concrete and steel rebar with acoustic emission and 3D laser scan techniques

Specimen

Stage I: concrete cracking

Stage III: steel-concrete friction

RE#2

39.71 ± 1.227

12.04 ± 2.255

C#1

40.04 ± 0.489

7.975 ± 0.282

C#6

39.71 ± 0.282

7.486 ± 1.409

C#7

40.04 ± 0.489

7.812 ± 1.760

C#8

39.71 ± 0.564

8.138 ± 0.746

C#12

39.88 ± 0.746

8.138 ± 0.746

C#15

40.36 ± 0.746

7.812 ± 0.108