Civil Engineering - RCC Structures Design - Discussion

Discussion Forum : RCC Structures Design - Section 5 (Q.No. 9)
9.
If the diameter of the main reinforcement in a slab is 16 mm, the concrete cover to main bars is
12 mm
13 mm
14 mm
15 mm
16 mm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 1 of 2.

Yogendra Singh Shekhawat said:   6 years ago
Thanks for explaining the answer.

Kamboj said:   6 years ago
For slab, concentrate cover is 25mm or not less than the diameter of the main bar so answer is 16mm.
(1)

Viru Kapoor said:   7 years ago
According to IS 456:2000.

For main reinforcement up to 12mm diameter for mild exposure, the nominal cover may be reduced by 5mm.

It is also mentioned in code i.e it shall not be less than dia of the bar.
16mm is correct.
(2)

Subhodeep said:   7 years ago
Generally,
Slab - diameter of the bar or 15mm whichever is more.
Beam - 25mm.
Column - 40mm.
Footing - 75mm.
(1)

Aryan said:   8 years ago
Flat Slab:-20mm.
Grade slab:-20mm.
Slab:-15mm or not less than dia of bar.

Upendra Singh said:   8 years ago
Slab- 20 mm.

But for mild condition and r/f dia is 12mm or less than that time it's consider 15 mm.

Abc said:   8 years ago
Footing 50 mm above a layer of lean concrete otherwise 75 mm.
Column 40 mm.
Beam 30 mm.
Slab 15 mm.

Vasanth s d said:   8 years ago
25 beam,
20 slab,

footing 50,

column 40 100% sure.

Bikash kabiraj said:   8 years ago
@Akash.

You are right but normally,
15 for slab.
20 for beam.
40 for column.
50 for footing.

Vivek maurya said:   9 years ago
You are right @Akash.


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