Reinforced Concrete Design





This article covers general information on reinforced concrete design.

Reinforced concrete is concrete embedded with steel reinforcing bars (aka rebar) before the concrete hardens.

The charts in this article cover reinforcing bars section properties and cement types.



Type of cements

Type Name Description
I Normal General purpose
II Moderate Moderate sulfate and heat resistance
III High early strength Fast strength development
IV Low-heat Generate low-heat during hydration
V Sulfate-resisting High sulfate resistance

Section Properties: Reinforcing Bars

Bar Nominal Diameter Cross Section Perimeter Normal Weight
No. in mm in mm in mm in mm
3 0.375 9.52 0.11 71 1.178 29.9 0.376 0.56
4 0.5 12.7 0.2 129 1.571 39.9 0.668 0.994
5 0.625 15.88 0.31 200 1.963 49.9 1.043 1.552
6 0.75 19.05 0.44 284 2.356 59.8 1.502 2.235
7 0.875 22.22 0.6 387 2.749 69.8 2.044 3.042
8 1.000 25.4 0.79 510 3.142 79.8 2.67 3.973
9 1.128 28.65 1.00 645 3.544 90.0 3.4 5.06
10 1.27 32.26 1.27 819 3.990 101.4 4.303 6.404
11 1.541 35.81 1.56 1006 4.43 112.5 5.313 7.907
14 1.693 43.00 2.25 1452 5.32 135.1 7.65 11.38
18 2.257 57.33 4.00 2581 7.09 180.1 13.6 20.24

 

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