An Efficient Chloride Ingress Model for Long-Term Lifetime Assessment of Reinforced Concrete Structures Under Realistic Climate and Exposure Conditions

International Journal of Concrete Structures and Materials

Table 3 Computational impact analysis for the reduced chloride ingress model.

Exposure	Time-step	Time to assess error and gain (year)	Computational error^a (%)	Computational gain^b
Tidal zone (Brest)	dt = 1 h	32.82	1.2	2.2
Tidal zone (Brest)	dt = 6 h	32.85	1.1	9.9
De-icing salts (Strasbourg)	dt = 1 h	51.65	0.1	2.7
	dt = 6 h	52.22	1.0	14.6
	dt = 24 h	55.34	7.0	53.0
	dt = 7 days	57.59	11.3	279.0
Salt spray (Nice)	dt = 1 h	100	0.1	1.4
	dt = 6 h	100	0.1	7.6
	dt = 24 h	100	7.5	28.4
	dt = 7 days	100	23.4	161.3

^aAbsolute error estimated with respect to the complete model with dt = 1 h.
^bComputed as the ratio between the total simulation time for the complete model with dt = 1 h divided by the total simulation time in each case.