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The minimum clear cover for R.C.C. columns shall be

A. Greater of 40 mm or diameter

B. Smaller of 40 mm or diameter

C. Greater of 25 mm or diameter

D. Smaller of 25 mm or diameter

Answer: Option C


This Question Belongs to Civil Engineering >> RCC Structures Design

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Comments ( 12 )

  1. Sanket Koli
    Sanket Koli :
    4 months ago

    option 1 i correct, it's maximum of 40mm or dia of bar, but when dimension of column is less than or equal to 250mm, then min cover if max of 25mm or bad dia.

  2. Drashtiba Solanki
    Drashtiba Solanki :
    3 years ago

    Wrong answer.. Right answer is greater 40 mm cover and diameter

  3. Sahid Anowar
    Sahid Anowar :
    3 years ago

    Wrong ans...
    40mm is right

  4. Sk Civilstudy
    Sk Civilstudy :
    3 years ago

    greater of 25 mm or diameter as per I.S. code but i guess the right answer is greater of 40 mm or diameter

  5. Rishabh Sharma
    Rishabh Sharma :
    3 years ago

    This answer is wrong, as per the IS code specifications the correct answer is 40 mm CC minimum.

  6. Jumon Bordoloi
    Jumon Bordoloi :
    4 years ago

    according to is 456:2000, longitudinal reinforcing bars in column nominal cover shall not be less then 40mm or less then the dia of sunch bars but columns of dimensions 200mm or less must have 25mm cover.

  7. Jitesh Dhale
    Jitesh Dhale :
    4 years ago

    Answer C is wright answer 25mm

  8. Jitesh Dhale
    Jitesh Dhale :
    4 years ago

    U batter know column clear cover R.C.C.40mm. Answer C is right because Greater of 25 mm or diameter(25mm

  9. Muhammad Saqib
    Muhammad Saqib :
    4 years ago

    It's wrong for columns 40mm minimum cc

  10. Sadeep Saini
    Sadeep Saini :
    5 years ago

    This ans is wrong ans

  11. Anku Das
    Anku Das :
    5 years ago

    Column 40
    Foundation 50
    Tie beam 30
    Beam 25
    Slab 15

  12. Karn Chaurasiya
    Karn Chaurasiya :
    6 years ago

    40 mm

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