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As per IS 456:2000, for the heavily reinforced concrete column, the nominal maximum size of aggregate should be restricted:
  • a)
    to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement whichever is smaller.
  • b)
    to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement whichever is greater.
  • c)
    to 10 mm less than the minimum clear distance between the main bars or 10 mm less than the minimum cover to the reinforcement whichever is smaller.
  • d)
    to 10 mm less than the minimum clear distance between the main bars or 10 mm less than the minimum cover to the reinforcement whichever is greater.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
As per IS 456:2000, for the heavily reinforced concrete column, the no...
As per IS 456:2000, Clause 5.3.3.1:
For Heavily reinforced concrete members as in the case of ribs of main beams, the nominal maximum size of aggregate should usually be restricted to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement whichever is smaller.
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As per IS 456:2000, for the heavily reinforced concrete column, the no...
**Explanation:**

In accordance with IS 456:2000, the nominal maximum size of aggregate for heavily reinforced concrete columns should be restricted to a certain limit. This restriction is defined based on the minimum clear distance between the main bars and the minimum cover to the reinforcement.

The correct answer is option 'A', which states that the nominal maximum size of aggregate should be restricted to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement, whichever is smaller.

Here is a detailed explanation of this answer:

**1. Nominal Maximum Size of Aggregate:**
The nominal maximum size of aggregate refers to the sieve size through which most of the particles pass and which is retained on the next smaller sieve size. For example, if the nominal maximum size of aggregate is 20 mm, it means that most of the particles will pass through a 20 mm sieve and be retained on a 16 mm sieve.

**2. Heavily Reinforced Concrete Columns:**
Heavily reinforced concrete columns are those columns that have a high amount of reinforcement in terms of the number and size of reinforcing bars. These columns are designed to resist high loads and provide adequate strength and durability.

**3. Clear Distance Between Main Bars:**
The clear distance between the main bars refers to the minimum distance between the main longitudinal reinforcement bars in a column. This distance is important to ensure proper bonding between the concrete and the reinforcement, as well as to provide sufficient space for concrete compaction.

**4. Minimum Cover to Reinforcement:**
The minimum cover to reinforcement refers to the minimum distance between the outer surface of the concrete and the nearest surface of the reinforcement. This cover is provided to protect the reinforcement from corrosion, fire, and other environmental influences.

**5. Restriction on Nominal Maximum Size of Aggregate:**
For heavily reinforced concrete columns, the nominal maximum size of aggregate should be restricted to a certain limit. As per IS 456:2000, this restriction is defined based on the minimum clear distance between the main bars and the minimum cover to the reinforcement.

The correct answer, option 'A', states that the nominal maximum size of aggregate should be restricted to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement, whichever is smaller. This means that the maximum size of aggregate should not exceed the smaller value obtained by subtracting 5 mm from either the clear distance between the main bars or the minimum cover to the reinforcement.

This restriction is important to ensure proper compaction of the concrete and to prevent segregation and honeycombing in heavily reinforced concrete columns. By limiting the size of aggregate, the flowability and workability of the concrete can be enhanced, resulting in a more homogeneous and durable structure.

In conclusion, as per IS 456:2000, for heavily reinforced concrete columns, the nominal maximum size of aggregate should be restricted to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement, whichever is smaller. This restriction is important to ensure the proper compaction and durability of the concrete.
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As per IS 456:2000, for the heavily reinforced concrete column, the nominal maximum size of aggregate should be restricted:a)to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement whichever is smaller.b)to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement whichever is greater.c)to 10 mm less than the minimum clear distance between the main bars or 10 mm less than the minimum cover to the reinforcement whichever is smaller.d)to 10 mm less than the minimum clear distance between the main bars or 10 mm less than the minimum cover to the reinforcement whichever is greater.Correct answer is option 'A'. Can you explain this answer?
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As per IS 456:2000, for the heavily reinforced concrete column, the nominal maximum size of aggregate should be restricted:a)to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement whichever is smaller.b)to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement whichever is greater.c)to 10 mm less than the minimum clear distance between the main bars or 10 mm less than the minimum cover to the reinforcement whichever is smaller.d)to 10 mm less than the minimum clear distance between the main bars or 10 mm less than the minimum cover to the reinforcement whichever is greater.Correct answer is option 'A'. 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 As per IS 456:2000, for the heavily reinforced concrete column, the nominal maximum size of aggregate should be restricted:a)to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement whichever is smaller.b)to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement whichever is greater.c)to 10 mm less than the minimum clear distance between the main bars or 10 mm less than the minimum cover to the reinforcement whichever is smaller.d)to 10 mm less than the minimum clear distance between the main bars or 10 mm less than the minimum cover to the reinforcement whichever is greater.Correct answer is option 'A'. 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 As per IS 456:2000, for the heavily reinforced concrete column, the nominal maximum size of aggregate should be restricted:a)to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement whichever is smaller.b)to 5 mm less than the minimum clear distance between the main bars or 5 mm less than the minimum cover to the reinforcement whichever is greater.c)to 10 mm less than the minimum clear distance between the main bars or 10 mm less than the minimum cover to the reinforcement whichever is smaller.d)to 10 mm less than the minimum clear distance between the main bars or 10 mm less than the minimum cover to the reinforcement whichever is greater.Correct answer is option 'A'. Can you explain this answer?.
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