Table 7 Total chloride content along the depth of the specimen.

From: Impact of carbon nanotubes on chloride diffusion in cement mortar under temperature gradient conditions

Depth from the exposed surface (mm)

Critical chloride content (% wt of cement)

Control mix (% wt of cement)

Optimal mix (% wt of cement)

10

0.4

0.575

0.500

20

0.4

0.565

0.471

30

0.4

0.504

0.471

40

0.4

0.475

0.354

50

0.4

0.460

0.298

60

0.4

0.346

0.231

70

0.4

0.356

0.207

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