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Q: As per the IS 2185 (Part 1) : 2005, what is the minimum average compressive strength for open and closed cavity load bearing masonry units?
  • A. 1.5 N/mm²
  • B. 3.5 N/mm²
  • C. 0.5 N/mm²
  • D. 2.5 N/mm²
Correct Answer: Option B - • Hollow concrete blocks confirms to IS : 2185 (Part 1) : 2005. The minimum compressive strength at 28 days being the average of eight units. • As per the IS 2185 The minimum average compressive strength for open and closed cavity load bearing masonry units are 3.5N/mm²
B. • Hollow concrete blocks confirms to IS : 2185 (Part 1) : 2005. The minimum compressive strength at 28 days being the average of eight units. • As per the IS 2185 The minimum average compressive strength for open and closed cavity load bearing masonry units are 3.5N/mm²

Explanations:

• Hollow concrete blocks confirms to IS : 2185 (Part 1) : 2005. The minimum compressive strength at 28 days being the average of eight units. • As per the IS 2185 The minimum average compressive strength for open and closed cavity load bearing masonry units are 3.5N/mm²