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What is the difference between cement and concrete?
Cement is any chemical binding agent that makes things stick to it or each other. Examples of cement are "glue," "mortar," and "paste." Concrete is a construction material consisting of cement, water, and some type of granular crushed material like cinders, gravel, sand, slag, or stone. When water is added to the cement and granular material, it activates the cement, which is the element responsible for binding the mix to form a solid object. Cement is from Latin caementum, or 'quarry stone', referring to the crushed stone mixed to form a setting mortar. Eventually, the term was applied to the binding agent itself. Concrete's early meanings were 'formed by cohesion; solidified', from Latin concrescere, 'grow together'. The meaning 'construction material' dates only from the mid-19th century.