concrete

Also known as poured concrete

thumb|A single concrete block, as used for construction

AI overview

Concrete is a building material made by mixing cement, water, and aggregates like sand and gravel, which hardens into a solid mass. It matters because it's one of the most widely used construction materials for buildings, roads, and infrastructure projects around the world.

AI-generated from the Wikipedia summary — may contain errors.

~72 min read

Encyclopedic overview

61 sections

Contents

Etymology
History
Ancient times
Classical era
Middle Ages
Early modern period
Modern period
Composition
Cement
Curing
Aggregates
Admixtures
Mineral admixtures and blended cements
Production
Design mix
Mixing
Sample analysis—workability
Curing
Maintaining optimal conditions for cement hydration
Curing techniques avoiding water loss by evaporation
Alternative types
Asphalt
Geopolymer concrete
Graphene enhanced concrete
Microbial
Nanoconcrete
Pervious
Polymer
Plant fibers
Sulfur concrete
Volcanic
Waste light
Recycled Aggregate Concrete (RAC)
Properties
Energy efficiency
Fire safety
Earthquake safety
Construction
Reinforced
Precast
Mass structures
Surface finishes
Prestressed
Placement
Cold weather placement
Underwater placement
Roads
Tube forest
Environment, health and safety
Health and safety
Cement
Climate change mitigation
Climate change adaptation
End-of-life: degradation and waste
Recycling
World records
Art
See also
References
Further reading
External links

thumb|A single concrete block, as used for construction

Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid. It is the second-most-used substance (after water), the most widely used building material, and the most-manufactured material in the world.

Excerpted from Wikipedia’s “concrete” article, available under the CC BY-SA 4.0 licence.