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The minimum clear cover for column bars recommended by IS code for the column is:
- a)20 mm or bar diameter, whichever is greater
- b)40 mm or bar diameter, whichever is greater
- c)30 mm or bar diameter, whichever is greater
- d)50 mm or bar diameter, whichever is greater
Correct answer is option 'A'. Can you explain this answer?
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The minimum clear cover for column bars recommended by IS code for th...
If columns of the minimum dimension of 20 cm or under, whose reinforcing bars do not exceed 12 mm, concrete cover of 25 mm to be used for reinforcement.
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For longitudinal reinforcing bars in a beam, not less than 30 mm or less than the diameter of the bar.
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The minimum clear cover for column bars recommended by IS code for th...
Minimum Clear Cover for Column Bars
The minimum clear cover for column bars recommended by IS code is 20 mm or bar diameter, whichever is greater. This is crucial for the structural integrity and durability of the column.
Importance of Clear Cover
- Clear cover is the distance between the outer surface of the reinforcement and the outer face of the concrete.
- It provides protection to the reinforcement against environmental factors such as corrosion, fire, and moisture.
- Adequate clear cover ensures proper bond between the reinforcement and concrete, enhancing the overall strength of the column.
IS Code Recommendation
- IS 456:2000, the Indian Standard Code of Practice for Plain and Reinforced Concrete, specifies a minimum clear cover requirement to ensure the safety and longevity of the structure.
- The code recommends a minimum clear cover of 20 mm or the diameter of the bar, whichever is greater, for column bars.
- This ensures that the reinforcement is adequately protected and maintains its structural integrity over time.
Conclusion
Ensuring the minimum clear cover for column bars as per the IS code is essential in construction to prevent corrosion, maintain bond strength, and enhance the durability of the structure. By following the recommended guidelines, engineers can ensure the safety and longevity of the columns in a building.
The minimum clear cover for column bars recommended by IS code is 20 mm or bar diameter, whichever is greater. This is crucial for the structural integrity and durability of the column.
Importance of Clear Cover
- Clear cover is the distance between the outer surface of the reinforcement and the outer face of the concrete.
- It provides protection to the reinforcement against environmental factors such as corrosion, fire, and moisture.
- Adequate clear cover ensures proper bond between the reinforcement and concrete, enhancing the overall strength of the column.
IS Code Recommendation
- IS 456:2000, the Indian Standard Code of Practice for Plain and Reinforced Concrete, specifies a minimum clear cover requirement to ensure the safety and longevity of the structure.
- The code recommends a minimum clear cover of 20 mm or the diameter of the bar, whichever is greater, for column bars.
- This ensures that the reinforcement is adequately protected and maintains its structural integrity over time.
Conclusion
Ensuring the minimum clear cover for column bars as per the IS code is essential in construction to prevent corrosion, maintain bond strength, and enhance the durability of the structure. By following the recommended guidelines, engineers can ensure the safety and longevity of the columns in a building.
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The minimum clear cover for column bars recommended by IS code for the column is:a)20 mm or bar diameter, whichever is greaterb)40 mm or bar diameter, whichever is greaterc)30 mm or bar diameter, whichever is greaterd)50 mm or bar diameter, whichever is greaterCorrect answer is option 'A'. Can you explain this answer?
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