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Specific gravity for most of the building stones lies between


1. 2.0 to 2.5
2. 2.5 to 3.0
3. 3.0 to 3.5
4. 3.5 to 4.0

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Best answer
Correct Answer - Option 2 : 2.5 to 3.0

Concept:

A good building stone has the following properties:

  • The percentage of wear in the attrition test should not be more than 3
  • Specific gravity for most of the building stones lies between 2.5 to 3. Mostly specific gravity should be taken at least 2.7
  • The coefficient of hardness should be greater than 17
  • Percentage of water absorption by weight of stone should be less than 5
  • The toughness index should not be less than 13
  • Crushing strength should be greater than 100 N/mm2

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