Table 3 Porosity, color difference (ΔE), roughness and UPV of desalinated specimens

From: Remedy for NaCl-induced sandstone weathering via crystallization inhibition by environmentally friendly iron tartrate

Specimen

Porosity (%)

ΔE

Ra (µm)

Rz (µm)

UPV (m·s–1)

Vertical

Horizontal

control

16.38

5.88

3.9 ± 1.2

12.3 ± 1.5

4630 ± 31

4100 ± 27

FCN

16.74

6.10

5.3 ± 0.9

14.5 ± 2.8

4680 ± 36

3160 ± 38

Fe(II)-mTA

16.14

5.69

6.1 ± 0.6

17.0 ± 1.5

4900 ± 25

4320 ± 21

Fe(III)-mTA

16.83

7.32

4.6 ± 1.3

12.4 ± 1.9

4080 ± 37

3920 ± 35

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