Definition:Concrete is a mixture of portland cement or any other hydraulic cement, fine aggregate, coarse aggregate, and water, with or without admixtures.
Concrete History:
Concrete is an ancient material of construction, first used during the Roman Empire.
Concrete today is a sophisticated material to which exotic (foreign) constituents can be added and, with computer-controlled batching, can produce a product capable of achieving 50,000 psi compressive strength.
Concrete Popularity as a Universal Building Construction Material
i.Concrete is the second most consumed substance in the world after water.
ii.All over the world, approximately for 80% of the construction concrete is required,.
iii. The cement and water form a paste that hardens and bonds the aggregates together.
iv.Concrete is often looked upon as “man made rock”.
v.Concrete has strength, durability, and economy.
what are the constituents of concrete and their function?
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