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Q: Concrete mainly consists of
  • A. cement
  • B. aggregates
  • C. admixture
  • D. all option are correct
Correct Answer: Option D - • Concrete is a composite material composed of fine & coarse aggregate bonded together with a fluid cement, that hardens over time • Composition : Cement, fine aggregate, coarse aggregate, water, admixtures etc.
D. • Concrete is a composite material composed of fine & coarse aggregate bonded together with a fluid cement, that hardens over time • Composition : Cement, fine aggregate, coarse aggregate, water, admixtures etc.

Explanations:

• Concrete is a composite material composed of fine & coarse aggregate bonded together with a fluid cement, that hardens over time • Composition : Cement, fine aggregate, coarse aggregate, water, admixtures etc.