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

International Journal of Concrete Structures and Materials

Table 9 ANOVA for selected factorial model: flexural strength

Source	Sum of squares	df	Mean square	F-value	p-value
Block	0.0464	2	0.0232
Model	0.2600	7	0.0371	34.42	< 0.0001	Significant
A-W/C	0.1947	1	0.1947	180.38	< 0.0001
B-SRA	0.0000	1	0.0000	0.0194	0.8897
C-Fiber	0.0002	1	0.0002	0.1450	0.7047
AB	0.0104	1	0.0104	9.64	0.0029
AC	0.0326	1	0.0326	30.17	< 0.0001
BC	0.0101	1	0.0101	9.36	0.0033
ABC	0.0121	1	0.0121	11.24	0.0014
Residual	0.0669	62	0.0011
Lack of fit	0.0212	14	0.0015	1.59	0.1170	Not significant
Pure error	0.0457	48	0.0010
Cor total	0.3733	71
R²	0.7953	Adjusted R²	0.7722		Predicted R²	0.7240

The values displayed in bold represent the non-significant parameters in the model