Table 7 Analysis of variance for each durability test
Sample | Origin of variations | Sum of squares | Degrees of freedom | Average of the squares | Calculated F | Probability | Critical value for F tabulated |
|---|---|---|---|---|---|---|---|
Freeze–Thaw (F–T) | |||||||
PT | Between groups | 0.24 | 1 | 0.24 | 86.63 | 7.00E−4 | |
Within groups | 0.01 | 4 | 2.80E−3 | 7.71 | |||
YT | Between groups | 0.09 | 1 | 0.08 | 22.48 | 9.00E−3 | |
within groups | 0.02 | 4 | 3.6 E−3 | ||||
GT | Between groups | 0.03 | 1 | 0.03 | 13.35 | 0.02 | |
Within groups | 0.01 | 4 | 2.4E−3 | ||||
WT | Between groups | 4.00E−4 | 1 | 4.00E−4 | 3.57 | 0.13 | |
Within groups | 5.00E−4 | 4 | 1.00E−4 | ||||
Thermal shock (T-S) | |||||||
YT | Between groups | 0.07 | 1 | 0.07 | 22.96 | 8.70E−3 | |
Within groups | 0.01 | 4 | 3.10E−3 | ||||
PT | between Groups | 0.04 | 1 | 0.04 | 9.04 | 0.04 | |
Within groups | 0.02 | 4 | 4.30E−3 | ||||
GT | Between groups | 4.80E−3 | 1 | 4.80E−3 | 3.28 | 0.14 | |
Within groups | 5.90E−3 | 4 | 1.15E−3 | ||||
WT | Between groups | 2.00E−4 | 1 | 2.00E−3 | 1.50 | 0.29 | |
Within groups | 4.00E−4 | 4 | 1.00E−3 | ||||
NaCl crystallization | |||||||
YT | Between groups | 0.70 | 1 | 0.70 | 207.02 | 1.00E−4 | |
Within groups | 0.01 | 4 | 3.40E−3 | ||||
PT | Between groups | 0.37 | 1 | 0.37 | 131.37 | 3.00E−4 | |
Within groups | 0.01 | 4 | 2.80E−3 | ||||
GT | Between groups | 0.02 | 1 | 0.02 | 16.79 | 0.02 | |
Within groups | 4.10E−3 | 4 | 1.00E−3 | ||||
WT | Between groups | 6.00E−4 | 1 | 6.00E−4 | 6.00 | 0.07 | |
Within groups | 4.00E−4 | 4 | 1.00E−4 | ||||