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What is clear cover generally used in Rcc slab?

Civil Engineering
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Question added by Mohd Meesum Rizvi , Senior Engineer, Project Manager , Highness Private Limited
Date Posted: 2015/04/07
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Samer Draidi - Civil Engineer
by Samer Draidi - Civil Engineer , Site Civil Engineer , Arabian Bemco

-For indoor,40mm

-Outdoor,50mm

-Under FGL level with direct contact to soil,75mm

Shokat Ali Khan

Clea cover depends on concreta thickness and exposure conditions. For slabs,beams and columns it may be20mm to40mm while for huge foundations and buried structures it may be from40mm to80mm depending mostly on size of steel bars and of concrete member.

VAMSHI KRISHNA NARAYANADAS
by VAMSHI KRISHNA NARAYANADAS , Senior Structural Engineer , G GROUP

Nominal Clear cover for slab depends upon the exposure conditions

1.Mild

2.Moderate

3.Severe

4.Very severe and

5.Extreme.

Nominal cover for slabs in Mild Exposure Conditions is20mm and can go up to75mm for Extreme Conditions

incase of fire resistant structures it will vary as per end conditions(simply supported slab or continous slab) ranges between20-55mm  as per Indian standard codes

However more cover assures more durability of Structure.

Rami khatib
by Rami khatib , Freelancer , Project Management Consultancy

Clear cover for rcc slab is15 mm

Mubashar Ali
by Mubashar Ali , Assistant Manager Operation at Orange line Metro Rail , Gaungzhou -Norinco-Daewoo JV

clear cover generally used in Rcc slab

is40mm ..

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