Table 2 Ratio of the chloride concentration in a circular RC cross-section and the chloride concentration of the plane RC element \( C/C_{slab} \) estimated at depth \( \rho_{1} = 4\;{\text{cm}} \) from the external surface.
\( C/C_{slab} \) | t = 1 year | t = 5 years | t = 10 years | t = 20 years | t = 50 years |
|---|---|---|---|---|---|
R = 20 cm | 1,119 | 1,120 | 1,121 | 1,124 | 1,130 |
R = 30 cm | 1,074 | 1,075 | 1,075 | 1,076 | 1,078 |
R = 50 cm | 1,043 | 1,043 | 1,043 | 1,043 | 1,044 |
R = 100 cm | 1,021 | 1,021 | 1,021 | 1,021 | 1,021 |
R = 150 cm | 1,014 | 1,014 | 1,014 | 1,014 | 1,014 |