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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, 75
- c)20, 25, 30, 40
- d)20, 35, 40, 75
Correct 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, colu...
Minimum Clear Cover for Main Steel Bars:
The minimum clear cover is the distance between the outer surface of the concrete and the main steel bars. It is important to provide an adequate clear cover to protect the steel reinforcement from corrosion and ensure the durability and strength of the structure. The minimum clear cover requirements vary for different structural elements such as slabs, beams, columns, and footings.
Minimum Clear Cover for Slab:
The minimum clear cover for main steel bars in slabs is generally specified to be 15 mm. This ensures that the steel bars are adequately protected from the environment and prevents any damage due to corrosion.
Minimum Clear Cover for Beam:
Beams are subjected to higher loads and stresses compared to slabs. Therefore, the minimum clear cover requirement for main steel bars in beams is higher. It is generally specified to be 25 mm to provide sufficient protection to the steel reinforcement.
Minimum Clear Cover for Column:
Columns are vertical structural members that transfer loads from the superstructure to the foundation. They are exposed to both compression and bending forces. To ensure the strength and durability of columns, a minimum clear cover of 40 mm is typically provided for the main steel bars.
Minimum Clear Cover for Footing:
Footings are structural elements that transfer the load from the column or wall to the soil. They are in direct contact with the ground and are exposed to moisture and other environmental factors. To protect the steel reinforcement from corrosion, a minimum clear cover of 75 mm is generally provided for the main steel bars in footings.
Therefore, the correct option is b) 15, 25, 40, 75, as it aligns with the typical minimum clear cover requirements for slabs, beams, columns, and footings respectively. It is important to note that these values may vary depending on the design requirements, local building codes, and specific project conditions. It is always recommended to consult the relevant design codes and standards for accurate clear cover requirements.
The minimum clear cover is the distance between the outer surface of the concrete and the main steel bars. It is important to provide an adequate clear cover to protect the steel reinforcement from corrosion and ensure the durability and strength of the structure. The minimum clear cover requirements vary for different structural elements such as slabs, beams, columns, and footings.
Minimum Clear Cover for Slab:
The minimum clear cover for main steel bars in slabs is generally specified to be 15 mm. This ensures that the steel bars are adequately protected from the environment and prevents any damage due to corrosion.
Minimum Clear Cover for Beam:
Beams are subjected to higher loads and stresses compared to slabs. Therefore, the minimum clear cover requirement for main steel bars in beams is higher. It is generally specified to be 25 mm to provide sufficient protection to the steel reinforcement.
Minimum Clear Cover for Column:
Columns are vertical structural members that transfer loads from the superstructure to the foundation. They are exposed to both compression and bending forces. To ensure the strength and durability of columns, a minimum clear cover of 40 mm is typically provided for the main steel bars.
Minimum Clear Cover for Footing:
Footings are structural elements that transfer the load from the column or wall to the soil. They are in direct contact with the ground and are exposed to moisture and other environmental factors. To protect the steel reinforcement from corrosion, a minimum clear cover of 75 mm is generally provided for the main steel bars in footings.
Therefore, the correct option is b) 15, 25, 40, 75, as it aligns with the typical minimum clear cover requirements for slabs, beams, columns, and footings respectively. It is important to note that these values may vary depending on the design requirements, local building codes, and specific project conditions. It is always recommended to consult the relevant design codes and standards for accurate clear cover requirements.
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Minimum clear cover (in mm) to the main steel bars in slab, beam, colu...
Wrong explanation min cover should be 20,25,40,50 while in case of slab if the dimensions is not more the 200mm then 15,25,40,50
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Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively area)10, 15,20,25b)15, 25, 40, 75c)20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer?
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