Response Surfaces for Fresh and Hardened Properties of Concrete with E-Waste (HIPS)

Table 6

Actual and predicted values of compressive strength (MPa), split tensile strength (MPa), and flexural strength (MPa) at 28 days.

Run	HIPS (Vol %)	ratio	Compressive strength (MPa)		Split tensile strength (MPa)		Flexural strength (MPa)
			Actual value	Predicted value	Actual value	Predicted value	Actual value	Predicted value
1			43.54	45.15	3.07	3.08	6.87	6.89
2			37.07	35.95	2.90	2.91	6.33	6.32
3			26.05	25.55	2.78	2.76	5.47	5.46
4			39.60	36.16	2.47	2.49	5.67	5.65
5			27.76	28.29	2.31	2.29	5.20	5.19
6			18.46	19.23	2.05	2.12	4.40	4.45
7			24.32	26.15	1.92	1.89	4.87	4.86
8			21.18	19.62	1.59	1.67	4.47	4.52
9			12.17	11.89	1.53	1.48	3.93	3.89
10	0	0	27.76	28.29	2.31	2.29	5.20	5.19
11	0	0	27.76	28.29	2.31	2.29	5.20	5.19
12	0	0	27.76	28.29	2.31	2.29	5.20	5.19
13	0	0	27.76	28.29	2.31	2.29	5.20	5.19