A Cost-Benefit Methodology for Selecting Analytical Reinforced Concrete Corrosion Onset Models

Table 11

Summary of the results of sensitivity analysis for all concrete carbonation models at 50 years [17].

Concrete		C45				C35				C25
Models	Parameter	E	P	M	Std.	E	P	M	Std.	E	P	M	Std.
DuraCrete		−0.46	−0.1	1229.2	3.28	−0.46	−0.08	8541.26	3.04	−0.46	−0.04	1170.37	2.3
	RH	−1.93	−0.13	1229.99	4.33	−1.93	0.03	8525.41	1.04	−1.93	−0.1	1172.11	4.6
		0.48	0.37	1250	11.42	0.48	0.24	8644.25	8.92	0.48	0.23	1184.31	12.2
		0.48	0.05	1227.9	1	0.48	0.02	8523.79	0.78	0.48	0.01	1169.65	1.05
		−1.44	−0.89	1404.14	27.66	−1.48	−0.95	11376.55	36.61	−1.48	−0.95	1557.57	50.4
CEB		−0.46	−0.04	0.47	2.08	−0.46	−0.67	216.64	5.79	−0.46	−0.04	0.49	0.23
	RH	−1.93	−0.08	−1.58	4.14	−1.93	−0.06	−1.25	0.35	−1.93	−0.09	−1.57	0.46
		0.48	0.24	−4.01	10.9	0.48	0.14	−4.51	0.92	0.48	0.24	−5.07	1.23
		−2.28	−0.95	65.32	44.81	−2.28	−0.55	61.84	3.78	−2.28	−0.95	73.51	5.07
Oxand	RH	−1.3	0.06	−5.34	7.56	−1.76	−0.92	10204.19	21.03	−1.76	−0.96	−618.89	31.6
		−13.38	−0.99	41.08	123.47	−3.24	−0.36	9779.7	8.2	−2.31	−0.2	9.41	6.59
Ying-Yu	RH	−2.92	−0.68	0.08	0.35	−2.92	−0.64	9	0.35	−2.92	−0.69	0.11	0.48
		−0.53	−0.15	−0.01	0.08	−0.53	−0.13	−2	0.08	−0.23	−0.09	0.01	0.5
		1.09	0.71	0.29	0.36	1.09	0.66	0.03	0.37	1.09	0.71	0.04	0.5
		0.89	−0.16	−0.96	0.18	0.89	−0.38	−0.003	0.06	0.6	−0.17	−1.58	0.26
		−0.77	−0.09	0.01	0.05	−0.75	−0.08	0.02	0.05	−0.41	−0.06	0.0002	0.05
		−0.91	−0.16	0.36	0.27	−0.91	−0.38	0.85	0.28	−0.91	−0.17	0.45	0.37
Miragliotta	RH	−2.91	−0.53	0.03	3.58	−2.91	−0.66	0.07	3.7	−2.91	−0.47	0.16	6.8
		−0.11	0.001	0.0003	0.17	−0.13	−0.04	0.004	0.2	0.24	0.05	0.12	0.6
		−0.97	−0.57	−0.98	5.4	−0.97	−0.68	−1.02	4.01	−0.97	−0.49	−1.83	12.5
		2.05	0.59	0.3	3.94	2.05	0.24	0.04	1.3	1.75	0.71	1.39	10.3
		−1.19	−0.11	0.05	0.72	−1.17	−0.14	0.04	0.7	−0.85	−0.08	0.1	1.3
Papadakis	RH	−2.91	−0.78	0.41	16.68	−2.91	−0.95	0.21	16.5	−2.91	−0.67	0.43	24.8
		−0.11	−0.04	−0.01	0.87	−0.14	−0.07	0.01	0.9	0.21	0.04	0.37	1.9
		−1.16	−0.13	0.16	3.3	−1.17	−0.18	0.2	3.2	−0.94	−0.1	0.23	4.7
		1.38	0.6	−0.31	12.88	1.41	0.23	−0.05	4.1	1.19	0.71	−1.21	26.3
Hyvert	RH	−4.29	−0.69	2.44	31.59	−4.29	−0.72	0.06	0.07	−4.29	−0.63	3.8	4.69
		−0.46	−0.1	0.01	0.59	−0.46	−0.04	0.0003	0.001	−0.46	−0.003	0.0028	0.012
		0.48	0.65	−11.15	29.52	0.48	0.67	−0.27	0.07	0.48	0.65	15.01	4.18
		0.67	0.16	−1.26	8.03	0.002	−0.01			0.49	0.22	−3.5	1.5
		−1.29	−0.1	0.32	4.59	−0.65	−0.04	0.003	0.005	−1.13	−0.13	−0.7	0.71
		−1.19	−0.21	1.63	9.48	−0.55	0.004			−1.05	−0.15	−2.5	1.25

E = elasticity coefficient; P = Pearson’s coefficient; M = bias on the output’s mean (); Std. = output’s standard deviation ().