Concrete - Quick Review

Concrete

• Core idea: Concrete is a cementitious composite used in construction.

Composition

• Cementitious binder: cement
• Aggregates: coarse and fine
• Water
• Admixtures (optional)

Key Properties

• High compressive strength; brittle in tension
• Durable; fire resistant
• Workability depends on mix and admixtures

Curing

• Hydration requires moisture retention for strength gain

Types/Forms

• Normal-strength concrete
• High-strength concrete
• Reinforced concrete

Applications

• Foundations, slabs, columns, beams, and pavements