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If the diameter of main reinforcement in a slab is 16 mm, the concrete cover to main bar according to IS 456:2000 is:
- a)12 mm
- b)14 mm
- c)16 mm
- d)20 mm
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
If the diameter of main reinforcement in a slab is 16 mm, the concrete...
According to IS 456: 2000, minimum nominal cover to all bars in the slab is 20mm. According to new code, nominal cover does not depend upon the diameter of bar used.
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If the diameter of main reinforcement in a slab is 16 mm, the concrete...
Concrete Cover to Main Bar According to IS 456:2000
According to IS 456:2000, concrete cover to main reinforcement in a slab is given by the following formula:
C = max (diameter of bar, 20 mm)
Where C is the concrete cover, and the diameter of bar is the diameter of the main reinforcement in the slab.
Given that the diameter of main reinforcement in the slab is 16 mm, we can substitute this value in the formula to get:
C = max (16, 20)
C = 20 mm
Therefore, the concrete cover to main bar according to IS 456:2000 is 20 mm.
Explanation:
Concrete cover is the thickness of concrete between the surface of the reinforcement and the outer surface of the concrete. It is provided to protect the reinforcement from corrosion and to provide fire resistance.
IS 456:2000 is the Indian Standard Code of Practice for Plain and Reinforced Concrete. It specifies the minimum concrete cover required for different types of structures and exposure conditions.
As per IS 456:2000, the concrete cover to main reinforcement in a slab is given by the formula C = max (diameter of bar, 20 mm). This means that the concrete cover should be equal to the maximum of the diameter of the bar and 20 mm.
In the given question, the diameter of the main reinforcement in the slab is given as 16 mm. Substituting this value in the formula, we get the concrete cover as 20 mm.
This means that the minimum concrete cover required for the given slab is 20 mm. Any cover less than this value may lead to corrosion of the reinforcement and reduce the life of the structure.
According to IS 456:2000, concrete cover to main reinforcement in a slab is given by the following formula:
C = max (diameter of bar, 20 mm)
Where C is the concrete cover, and the diameter of bar is the diameter of the main reinforcement in the slab.
Given that the diameter of main reinforcement in the slab is 16 mm, we can substitute this value in the formula to get:
C = max (16, 20)
C = 20 mm
Therefore, the concrete cover to main bar according to IS 456:2000 is 20 mm.
Explanation:
Concrete cover is the thickness of concrete between the surface of the reinforcement and the outer surface of the concrete. It is provided to protect the reinforcement from corrosion and to provide fire resistance.
IS 456:2000 is the Indian Standard Code of Practice for Plain and Reinforced Concrete. It specifies the minimum concrete cover required for different types of structures and exposure conditions.
As per IS 456:2000, the concrete cover to main reinforcement in a slab is given by the formula C = max (diameter of bar, 20 mm). This means that the concrete cover should be equal to the maximum of the diameter of the bar and 20 mm.
In the given question, the diameter of the main reinforcement in the slab is given as 16 mm. Substituting this value in the formula, we get the concrete cover as 20 mm.
This means that the minimum concrete cover required for the given slab is 20 mm. Any cover less than this value may lead to corrosion of the reinforcement and reduce the life of the structure.
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If the diameter of main reinforcement in a slab is 16 mm, the concrete cover to main bar according to IS 456:2000 is:a)12 mmb)14 mmc)16 mmd)20 mmCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about If the diameter of main reinforcement in a slab is 16 mm, the concrete cover to main bar according to IS 456:2000 is:a)12 mmb)14 mmc)16 mmd)20 mmCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the diameter of main reinforcement in a slab is 16 mm, the concrete cover to main bar according to IS 456:2000 is:a)12 mmb)14 mmc)16 mmd)20 mmCorrect answer is option 'D'. Can you explain this answer?.
If the diameter of main reinforcement in a slab is 16 mm, the concrete cover to main bar according to IS 456:2000 is:a)12 mmb)14 mmc)16 mmd)20 mmCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about If the diameter of main reinforcement in a slab is 16 mm, the concrete cover to main bar according to IS 456:2000 is:a)12 mmb)14 mmc)16 mmd)20 mmCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the diameter of main reinforcement in a slab is 16 mm, the concrete cover to main bar according to IS 456:2000 is:a)12 mmb)14 mmc)16 mmd)20 mmCorrect answer is option 'D'. Can you explain this answer?.
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