Research on Modified High-Performance Cement Mortar of Prefabricated Buildings Based on Orthogonal Test

International Journal of Concrete Structures and Materials

Table 13 ANOVA of the results of the 21 d compressive strength test

Factor	Sum of square of deviation	Degrees of freedom	Mean square	F	F Critical value	Significance
A	3.797	2	1.899	4.987	F_0.05(2,8) = 4.46	*
B	0.001	2	0.001	3.151	F_0.1(2,8) = 3.11	*
C	0.616	2	0.308	3.647	F_0.1(2,8) = 3.11	*