Question

Minimum spacing between horizontal parallel reinforcement of the same size should not be less than

Answer 1

The answer is one diameter.

Minimum spacing between horizontal parallel reinforcements of the same size should not be less than one diameter. However, when a compaction takes place, the minimum horizontal spacing is the diameter of the larger bar or 5 mm more than the maximum size of the core aggregate.

Answer 2

Spacing of Reinforcement in reinforced concrete members: Minimum Spacing between Bars in Tension The minimum horizontal spacing between two parallel main bars shall be the diameter of a larger bar or maximum size of coarse aggregate plus 5 mm. However, where compaction is done by needle vibrator.

5 mm more than the nominal maximum size, reinforcement. Slabs The horizontal distance between parallel main reinforcement bars shall not be more than three times the effective depth of the solid slab. The minimum clear spacing between parallel bars in a layer shall be db(diameter of bar) but not less than 25mm.