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Q: Which of the following is demerit for using lime mortar?
  • A. It is not durable
  • B. It does not set quickly
  • C. It has swelling
  • D. It is plastic
Correct Answer: Option B - Lime mortar is generally mode with hydraulic lime. • Lime mortar have plasticity and placebility, good adhesion with other surface and low shrinkage. However, it sets very slowly sand develops strength over a long period. The gain in strength is the reaction of lime with CO₂ from the air. • It does not set quickly • Initial setting time is 2 hrs. • Final setting time is 48 hrs.
B. Lime mortar is generally mode with hydraulic lime. • Lime mortar have plasticity and placebility, good adhesion with other surface and low shrinkage. However, it sets very slowly sand develops strength over a long period. The gain in strength is the reaction of lime with CO₂ from the air. • It does not set quickly • Initial setting time is 2 hrs. • Final setting time is 48 hrs.

Explanations:

Lime mortar is generally mode with hydraulic lime. • Lime mortar have plasticity and placebility, good adhesion with other surface and low shrinkage. However, it sets very slowly sand develops strength over a long period. The gain in strength is the reaction of lime with CO₂ from the air. • It does not set quickly • Initial setting time is 2 hrs. • Final setting time is 48 hrs.