Table 2:
Physical and mechanical properties of shaft lining concrete.
3 d strength (MPa)
7 d strength (MPa)
28 d strength (MPa)
Slump (mm)
Elasticity modulus (MPa)
Poisson’s ratio
Relative impermeability coefficient (cm·h
−1
)
Water absorption
70.33
81.37
94.47
182
41237
0.211
1.14 × 10
−7
2.54%