What is the Difference Between Cement and Concrete? | Q & A

Cement

• Cement is a binding material

• It is a fine powder

• Reacts with water and sets & hardens

• Cannot be used alone for construction works

• Acts as the glue in concrete

Example:
Cement alone will crack and shrink if used without aggregates.

Concrete

• Concrete is a composite construction material

• Made by mixing cement + fine aggregate + coarse aggregate + water

• Becomes strong and durable after hardening

• Used for structural elements

• Can carry heavy loads

Example:
Concrete is used for slabs, beams, columns, and foundations.

Tabular Comparison (Best for Interviews) Aspect                 Cement                    Concrete

Nature	Binding material	Construction material
Form	Fine powder	Wet mix → hard mass
Components	Cement only	Cement + aggregates + water
Strength	Low by itself	High compressive strength
Usage	Binder in concrete	Structural works
Cost	Expensive	Economical due to aggregates

Simple Site-Oriented Explanation

Cement is like glue, concrete is like the final stone.

One-Line Interview Answer (Perfect)

Cement is a binding material, while concrete is a construction material made by mixing cement with aggregates and water.

Common Follow-Up Interview Question

Q: Why don’t we use cement alone?
A: Because it is costly, shrinks excessively, and lacks strength without aggregates.