Introduction Cement was invented in England in 1824 and is a key ingredient in concrete. Every year the average family uses one tonne of cement without even knowing it. No house, school, bridge or road would be built without it. Concrete is the second most consumed substance in the world after water. It is made from aggregate, cement and water and can be mixed on building sites or supplied readymixed from a concrete plant. The UK’s first readymixed concrete plant was set up by a…

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