Increasing the Length of Concrete Pavement Slabs Using Shrinkage Reducing Admixture and Polypropylene Fiber

International Journal of Concrete Structures and Materials

Table 8 ANOVA for selected factorial model: Compressive Strength

Source	Sum of squares	df	Mean square	F-value	p-value
Block	3161.61	2	1580.81
Model	2778.27	7	396.90	141.01	< 0.0001	Significant
A-W/C	1734.42	1	1734.42	616.19	< 0.0001
B-SRA	23.46	1	23.46	8.33	0.0053
C-Fiber	514.39	1	514.39	182.75	< 0.0001
AB	183.73	1	183.73	65.28	< 0.0001
AC	173.93	1	173.93	61.79	< 0.0001
BC	47.16	1	47.16	16.75	0.0001
ABC	101.18	1	101.18	35.95	< 0.0001
Residual	174.51	62	2.81
Lack of fit	36.48	14	2.61	0.9060	0.5583	Not significant
Pure error	138.04	48	2.88
Cor total	6114.39	71
R²	0.9409	Adjusted R²	0.9342		Predicted R²	0.9203