Experimental Research on Mix Ratio of Construction Waste Cemented Filling Material Based on Response Surface Methodology

Table 6

Results of ANOVA.

Source	Sum of squares	df	Mean square	F value	P value prob > F
Slump
Model	2246.77	6	374.46	180.35	<0.0001	Significant
x1	84.50	1	84.50	40.70	<0.0001
x2	105.13	1	105.13	50.63	<0.0001
x3	253.13	1	253.13	121.91	<0.0001
x1x2	12.25	1	12.25	5.90	0.0355
	1691.11	1	1691.11	814.48	<0.0001
	59.79	1	59.79	28.80	0.0003
Bleeding rate
Model	5.29	6	0.8822	197.19	<0.0001	Significant
x1	3.38	1	3.38	755.53	<0.0001
x2	0.3613	1	0.3613	80.75	<0.0001
x3	0.4512	1	0.4512	100.87	<0.0001
x1x2	0.0225	1	0.0225	5.03	0.0488
	0.6190	1	0.6190	138.37	<0.0001
	0.4003	1	0.4003	89.47	<0.0001
28 d compressive strength
Model	1.03	8	0.1282	70.72	<0.0001	Significant
x1	0.0313	1	0.0313	17.24	0.0032
x2	0.5000	1	0.5000	275.86	<0.0001
x3	0.0613	1	0.0613	33.79	0.0004
x1x2	0.0400	1	0.0400	22.07	0.0015
x1x3	0.1225	1	0.1225	67.59	<0.0001
	0.0581	1	0.0581	32.07	0.0005
	0.1044	1	0.1044	57.63	<0.0001
	0.1181	1	0.1181	65.18	<0.0001