In Situ Determination of the Transport Properties of Near-Surface Concrete Using AC Impedance Spectroscopy Techniques

Table 2

Test results of the chloride ion diffusion coefficients.

Specimen	Chloride ion diffusion coefficients
	( m^2s^−1)	D (90 d) ( m^2s^−1)
C0	3.60 (3.71)	1.40
FA1	5.82 (5.90)	1.10
FA2	2.70 (2.82)	1.21
FA3	4.73 (4.88)	1.63
GS1	2.85 (2.96)	1.35
GS2	2.15 (2.32)	1.20
GS3	1.42 (1.60)	1.03
SF1	1.20 (1.31)	0.41
SF2	0.83 (0.87)	0.34
SF3	1.03 (1.12)	0.36

in () are obtained from the PERMIT ion migration test; see Section 7 for details.