Concrete Properties
Properties of normal strength Portland cement concrete.
Typical properties of normal strength Portland cement concrete:
- Density - ρ : 2240 - 2400 kg/m3 (140 - 150 lb/ft3)
- Compressive strength : 20 - 40 MPa (3000 - 6000 psi)
- Flexural strength : 3 - 5 MPa (400 - 700 psi)
- Tensile strength - σ : 2 - 5 MPa (300 - 700 psi)
- Modulus of elasticity - E : 14 - 41 GPa (2 - 6×106 psi)
- Permeability : 1×10-10 cm/sec
- Coefficient of thermal expansion - β : 10-5 oC-1(5.5×10-6 oF-1)
- Drying shrinkage : 4 - 8×10-4
- Drying shrinkage of reinforced concrete : 2 - 3×10-4
- Poisson's ratio : 0.20 - 0.21
- Shear strength - τ : 6 - 17 MPa
- Specific heat - c : 0.75 kJ/kg K (0.18 Btu/lbm oF (kcal/kg oC))
