The use of hollow pre cast concrete blocks in construction results in:

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SSC JE Civil 14 Nov 2022 Shift 1 Official Paper
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  1. reducing dead weight of structure
  2. increasing ductility of structure
  3. increasing load bearing capacity of structure
  4. increasing cost of structure

Answer (Detailed Solution Below)

Option 1 : reducing dead weight of structure
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Explanation:

The use of precast concrete blocks in the construction:

  1. High compressive strength
  2. A Good fire and abrasion resistance
  3. Very good stability
  4. Rapid construction
  5. Hollow units have low self-weight(overall reducing dead weight of structure)
  6. Reinforcement can be passed through hollow units and filled with concrete to increase earthquake resistance
  7. Air space (hollow units) provides good thermal insulation
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