Which material is primarily used for making concrete?

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Multiple Choice

Which material is primarily used for making concrete?

Explanation:
Concrete is a composite made from cement paste, water, and aggregates such as sand and gravel. The material that actually binds everything together is cement; when it hydrates with water, it forms a hard matrix that glues the sand and gravel into a solid. Sand and gravel provide bulk as aggregates, while water helps the chemical reaction but does not serve as the binding material. So, the primary material used to make concrete is cement.

Concrete is a composite made from cement paste, water, and aggregates such as sand and gravel. The material that actually binds everything together is cement; when it hydrates with water, it forms a hard matrix that glues the sand and gravel into a solid. Sand and gravel provide bulk as aggregates, while water helps the chemical reaction but does not serve as the binding material. So, the primary material used to make concrete is cement.

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