We see concrete everywhere, in buildings, roads, driveways, walls, and so on.

What is Concrete?
Why Concrete Needs Reinforcement (rebar etc.)

Using concrete

How they build the world’s tallest building Burj Khalifa – Construction Documentary
How does a prestressed precast concrete bridge beam work?
World Amazing Modern Concrete Paving Machine – Latest Technology Construction Equipment Machinery

Concrete comes from cement, which is made in a cement kiln

Cement, how it is made.

Roman concrete

Was Roman Concrete Better?
How To Make Roman Concrete

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