Concrete Properties

Properties of normal strength Portland cement concrete

Typical properties of normal strength Portland cement concrete are indicated below:

• Density : 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 : 2 - 5 MPa (300 - 700 psi)
• Modulus of elasticity : 14000 - 41000 MPa (2 - 6 x 10⁶ psi)
• Permeability : 1 x 10^-10 cm/sec
• Coefficient of thermal expansion : 10^{-5 o}C^-1 (5.5 x 10^{-6 o}F^-1)
• Drying shrinkage : 4 - 8 x 10^-4
• Drying shrinkage of reinforced concrete : 2 - 3 x 10^-4
• Poisson's ratio : 0.20 - 0.21
• Shear strain : 6000 - 17000 MPa (1 - 3 x 10⁶ psi)
• Specific heat capacity :  0.75 kJ/kg K (0.18 Btu/lb_m ^oF (kcal/kg ^oC))

 

 

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