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Table 2 Data corresponding to the accelerated corrosion tests conducted on the three reinforced cement mortar specimens.

From: Use of Higher-Harmonic and Intermodulation Generation of Ultrasonic Waves to Detecting Cracks due to Steel Corrosion in Reinforced Cement Mortar

Sample

First crack (days)

x0 (µm)

End of the test (days)

9

10 (9)

11.5

31 (30)

10

9 (8)

10.2

15 (14)

11

8 (7)

8.9

8 (7)

  1. Data in parentheses are the days elapsed from the onset of current passing.