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Q: Which of the following test are done for frost resistance to assess the durability of stone?
  • A. Smith’s test
  • B. Brard’s test
  • C. Acid test
  • D. Crystallization test
Correct Answer: Option B - Brard's test– This test is done to check frost resistance. • Few small pieces of freshly quarried stone are immersed in boiling solution of sulphate of soda and are weighed. • These are then removed and kept suspended for few days and weighed again. The loss in weight indicates the probable effect of frost.
B. Brard's test– This test is done to check frost resistance. • Few small pieces of freshly quarried stone are immersed in boiling solution of sulphate of soda and are weighed. • These are then removed and kept suspended for few days and weighed again. The loss in weight indicates the probable effect of frost.

Explanations:

Brard's test– This test is done to check frost resistance. • Few small pieces of freshly quarried stone are immersed in boiling solution of sulphate of soda and are weighed. • These are then removed and kept suspended for few days and weighed again. The loss in weight indicates the probable effect of frost.