Concrete density as a function of its reinforcement

August , 18th 2024 | Via: Prontubeam | Seen: 322 times

This image shows how **the density of concrete varies as a function of its reinforcement**. As we can see, using 25 kN/m³ would not be conservative for certain reinforcement ratios.

These values are based on the weight of the reinforcements provided in the table "Cross-sectional area by number of rebars (cm2)". These values are based on the following assumptions:

[1] The unreinforced concrete is considered to have a density of 24 kN/m³ and the reinforcement 7850kg/m³.

[2] ρ is the total reinforcement area divided by the concrete area per direction, considering the same reinforcement in the top and bottom layers.

[3] These values do not consider neither the shear reinforcement nor minimum reinforcement.

[1] The unreinforced concrete is considered to have a density of 24 kN/m³ and the reinforcement 7850kg/m³.

[2] ρ is the total reinforcement area divided by the concrete area per direction, considering the same reinforcement in the top and bottom layers.

[3] These values do not consider neither the shear reinforcement nor minimum reinforcement.

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