Modeling the Effect of Crude Oil Impacted Sand on the Properties of Concrete Using Artificial Neural Networks

Table 3

Network results.

Days	Contamination; (%)	Experimental strength; (KN/m^2)	Predicted strength; (KN/m^2)
3	20	1.83	1.95949
7	0	21.25	19.65660
7	5	13.17	11.59376
7	20	3.00	2.96281
14	15	5.17	6.08069
28	0	31.50	29.46312
28	20	5	5.49207
28	25	3.50	4.09650
84	5	21.67	24.11810
168	5	24.30	29.80714
168	15	11.90	12.54894
3*	5	8.17	8.72138
7*	25	1.83	2.25217
14*	0	25.50	24.62380
28*	15	6.61	7.91919
56*	25	4.00	4.64828
84*	10	15.67	15.46192
168*	2.5	33.00	35.17997

∗Shows the validating sets.