Concrete mainly consists of:
Try it first: pick an option, then read the explanation.
Correct answer: D. All options are correct
Main Constituents of Concrete
Concrete is a composite material made up of cement (binder), fine and coarse aggregates (filler and skeleton), and water (for hydration and workability). In modern practice, admixtures (chemical or mineral) are also routinely added to modify properties such as workability, setting time, and durability. All the options listed are valid constituents of concrete.
All options are correct — option D.
Key takeaway
Concrete = cement + aggregates + water + admixtures. No single constituent alone makes concrete.