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Table 1 Properties of the material.

From: Parametric Study of Different Unbonded Tendon Layouts in Pre-stressed Concrete Flat Plates

Material

Properties

Concrete

 Characteristic cylindrical compressive strength (MPa) (fck)

35/45

 Mean axial tensile strength (MPa)

3.2

 Secant modulus of elasticity (GPa)

34

Steel reinforcement

 Characteristic yield strength of rebar: B500NC (MPa)

500

 Modulus of elasticity (GPa)

200

Pre-stressing steel: (BBR VT CONA Single 0.62″)

 Diameter of a tendon (mm)

15.7

 Cross-sectional area (mm2)

150

 Characteristic yield strength (MPa)

1860

 Modulus of elasticity (GPa)

196