Approaches for Modelling the Residual Service Life of Marine Concrete Structures

Table 1

Laboratory storage tests.

Test series	Specimen	Storage	Studying mechanism
1	Composite specimen with chloride gradients in concrete	Cl–Cl	D, B, R
2	Composite specimen with chloride gradients in concrete	Cl–water	B, R
3	Composite specimen	20°C/65% RH–Cl	D
4	Concrete specimen with chloride gradients	Cl–20°C/65% RH	R

D: diffusion (ingress) of external chloride ions into the repair layer and further into the concrete layer.
B: “back-diffusion” of residual chloride ions from the concrete into the repair layer.
R: redistribution of residual chloride ions in the concrete layer.