Q. The ratio of diameter of reinforcing bars and slab thickness is

A
1/4
B
1/5
C
1/6
D
1/8
Solution:

According to IS 456:2000:

  • The diameter of the reinforcing bars shall not exceed one eighth of the total thickness of the slab.
  • The mild steel reinforcement in either direction in slabs shall not be less than 0.15% of the total cross-sectional area.
  • However this value can be reduced to 0.12% when high strength deformed bars are used.
  • Thus option D is the correct answer.
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