Building Material- Crushing strength of good stone

MCQ about Crushing strength of good stone

The crushing strength (MPa) of good stone used for construction of a building must not be less than

• 10
• 50
• 100
• 120

        

Crushing strength should be greater than 100 N/mm2

A good building stone has the following properties:
Percentage of wear in the attrition test should not be more than 3
Specific gravity should be at least 2.7
Coefficient of hardness should be greater than 17
Percentage of water absorption by weight of stone should be less than 5
Toughness index should not be less than 13
Crushing strength should be greater than 100 N/mm2

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