Advances in Artificial Neural Systems

Research Article

Predicting Carbonation Depth of Prestressed Concrete under Different Stress States Using Artificial Neural Network

Table 2

Stress states and carbonation depths of all specimens.


		Stress states in concrete			Testing age (days)	Carbonation depth (mm)
Number	W/C		Applied stress	Stress level
		(MPa)	(MPa)

Specimens of Series A
A1	0.4	20.30			30	23.20
A2	0.4	20.30			60	31.90
A3	0.4	20.30			90	34.45
A4	0.4	20.30			30	22.50
A5	0.4	20.30			60	26.38
A6	0.4	20.30			90	31.56
A7	0.4	20.30			30	19.95
A8	0.4	20.30			60	25.13
A9	0.4	20.30			90	29.19
Specimens of Series B
B10	0.4	1.84	0.576	0.313	45	29.60
B11	0.4	1.84	0.576	0.313	90	37.50
B12	0.4	1.84	1.036	0.563	45	30.20
B13	0.4	1.84	1.036	0.563	90	39.10
B14	0.4	1.84	1.290	0.701	45	31.15
B15	0.4	1.84	1.290	0.701	90	40.50
Specimens of Series C
C16	0.4	—	0	0	30	25.45
C17	0.4	—	0	0	45	29.10
C18	0.4	—	0	0	60	31.92
C19	0.4	—	0	0	90	36.45