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Uses of limestone. Limestone, quicklime and slaked lime are all used to neutralise excess acidity-which may be caused by acid rain-in lakes and in soils. Limestone is used as a building material, and to purify iron in blast furnaces.It's also used in the manufacture of glass, and of cement (one of the components of concrete).he main uses of limestone and its products. 1  Limestone (CaCO 3) can be used as a building material and in the manufacturing of iron. 2  Glass-heated with sand and soda (sodium carbonate). 3  Cement-heated with clay in a kiln. 4  Concrete-mixed with sand, water and crushed rock. 5  Mortar-mixed with sand and water. 6  Quicklime-heated.
Uses of limestone. Limestone is a type of rock, mainly composed of calcium carbonate. Limestone is quarried (dug out of the ground) and used as a building material. It is also used in the manufacture of cement, mortar and concrete.ement is made by heating powdered limestone with clay. Cement is an ingredient in mortar and concrete: 1  mortar, used to join bricks together, is made by mixing cement with sand and water. 2  concrete is made by mixing cement with sand, water and aggregate (crushed rock).