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Geology QUESTION #10662
Question 1
Which of the following construction materials have high compressive strength and are suitable for structural use?
  • Concrete
  • Granite
  • Structural steel
  • All of these✔️
Correct Answer Explanation
All three materials exhibit high compressive strength suitable for construction:
  • Concrete: compressive strength typically 20–60 MPa (higher with reinforcement)
  • Granite: unconfined compressive strength 130–250 MPa — excellent dimension stone
  • Steel: yield strength 250–690 MPa in both compression and tension
Steel is unique in having high tensile strength as well, complementing concrete (weak in tension) in reinforced concrete structures.