Table 5 Results of variance analysis of fracture performance of concrete under different prefabricated pore conditions.
From: Concrete double-K fracture toughness and fracture energy influenced by porosity and pore size
Fracture parameters | Difference source | Degree of freedom | F value | Significance coefficient(p) |
|---|---|---|---|---|
Initiation fracture toughness | Porosity(Factor A) | 3 | 27.082 | 0.00001 |
pore size(Factor B) | 4 | 34.571 | 0.000002 | |
Instability fracture toughness | Porosity(Factor A) | 3 | 48.894 | 0.000001 |
pore size(Factor B) | 4 | 29.977 | 0.000004 | |
Fracture energy | Porosity(Factor A) | 3 | 110.125 | 0.00000001 |
pore size(Factor B) | 4 | 12.515 | 0.0003 |
