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Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively are?
a)10, 15, 20, 25
b)15, 25, 40, 50
c) 20, 25, 30, 40
d)20, 35, 40, 75
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Minimum clear cover (in mm) to the main steel bars in slab, beam, colu...
Option (b) is correct:
In IS : 456 – 1978‚ the clear covers are specified as :
(i) For longitudinal reinforcement bar in a column, not less than 40 mm‚ or less than the diameter of such bar.
(ii) For longitudinal reinforcing bar in a beam, not less than 25mm, or less than the diameter of such bar.
(iii) For tensile, compressive, shear or other reinforcement in a slab, not less than 15 mm, or less than the diameter of such bar.
(iv) in other cases the clear cover to the reinforcement bars shall not be less than 40 min of diameter of such bar whichever is more. The clear cover should not exceed 75 mm in any case. According to IS 456 : 2000 nominal cover shall not be less than the diameter of bar. The nominal cover is specified to meet durability requirement in Table 16 on page 47 of the IS Code. To meet specified period of fire resistance the clear covers are given in Table 16A on page 47. For longitudinal reinforcing bars the nominal cover shall not be less than 40 mm. For footings minimum cover shall be 50 mm.
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Minimum clear cover (in mm) to the main steel bars in slab, beam, colu...
Minimum Clear Cover Requirements for Reinforcement in Different Structural Members
Slab:
- Minimum clear cover = 15 mm
Beam:
- Minimum clear cover = 25 mm
Column:
- Minimum clear cover = 40 mm
Footing:
- Minimum clear cover = 50 mm
Explanation:
- Clear cover refers to the distance between the surface of the concrete and the nearest surface of the reinforcement.
- It is important to maintain minimum clear cover to ensure adequate protection of the reinforcement from corrosion and other environmental factors.
- The minimum clear cover requirements vary depending on the type of structural member and the exposure conditions.
- Option B, with minimum clear cover values of 15 mm, 25 mm, 40 mm, and 50 mm for slab, beam, column, and footing respectively, is the correct answer.
Slab:
- Minimum clear cover = 15 mm
Beam:
- Minimum clear cover = 25 mm
Column:
- Minimum clear cover = 40 mm
Footing:
- Minimum clear cover = 50 mm
Explanation:
- Clear cover refers to the distance between the surface of the concrete and the nearest surface of the reinforcement.
- It is important to maintain minimum clear cover to ensure adequate protection of the reinforcement from corrosion and other environmental factors.
- The minimum clear cover requirements vary depending on the type of structural member and the exposure conditions.
- Option B, with minimum clear cover values of 15 mm, 25 mm, 40 mm, and 50 mm for slab, beam, column, and footing respectively, is the correct answer.
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Community Answer
Minimum clear cover (in mm) to the main steel bars in slab, beam, colu...
Option ,B is wrong 20,25,40,50
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Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively are?a)10, 15, 20, 25b)15, 25, 40, 50c) 20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer?
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Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively are?a)10, 15, 20, 25b)15, 25, 40, 50c) 20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively are?a)10, 15, 20, 25b)15, 25, 40, 50c) 20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively are?a)10, 15, 20, 25b)15, 25, 40, 50c) 20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer?.
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Solutions for Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively are?a)10, 15, 20, 25b)15, 25, 40, 50c) 20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Civil Engineering (CE).
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Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively are?a)10, 15, 20, 25b)15, 25, 40, 50c) 20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively are?a)10, 15, 20, 25b)15, 25, 40, 50c) 20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively are?a)10, 15, 20, 25b)15, 25, 40, 50c) 20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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