Table 10.

Models’ experimental validations.

Response	Variables			Experimental	Predicted	Error (%)	Average Error (%)
	DPF (%)	Silica Fume (%)	Temperature (°C)
Weight loss (%)	1.0	12.14	317	0.252	0.237	6.15	5.72
	1.14	11.74	312	0.221	0.209	5.61
	2.0	10	400	0.799	0.849	6.26
	1.5	7.5	300	0.14	0.132	6.07
	2.5	12.5	500	3.535	3.316	6.21
	3.0	15	600	7.571	7.268	4.00
Compressive strength (MPa)	1.0	12.14	317	58.52	61.02	4.28	5.16
	1.14	11.74	312	56.83	61.03	7.39
	2.0	10	400	58.2	55.75	4.20
	1.5	7.5	300	59.16	62.11	4.99
	2.5	12.5	500	35.33	37.56	6.32
	3.0	15	600	7.27	7.55	3.78
Relative strength (%)	1.0	12.14	317	127.62	132.86	4.11	5.04
	1.14	11.74	312	125.97	132.13	4.89
	2.0	10	400	127.71	122.57	4.02
	1.5	7.5	300	118.64	124.33	4.80
	2.5	12.5	500	96.23	101.95	5.94
	3.0	15	600	58.67	62.47	6.48