powdered limestone and powdered clay are heated in a kiln
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how do you make mortar
cement mixed with sand and water
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what can you add to mortar
calcium hydroxide
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how do you make concrete
mix cement with sand and aggregate (water and gravel)
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disadvantages for quarrying limestone
huge ugly holes which permanently chnage the landscape,lots of noise and dust,destroys habitats,need to be transported away so noise and pollution,waste materials produce unsightly tips
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disadvantages of processing limestone
cement factories make a lot of dust reuslting in breathing problems, energy is needed to produce cement and quicklime which comes from burning fossil fuels
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examples of limestone products
building materials, dyes, paints, medicines, neutralise sulfur dioxide which causes acid rain
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advantages of quarrying limestone
provides jobs which bring money to the local economy, landscaping and restoration of the area is done afterwards
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advantages for using limestone for buliding
cheap, hard-wearing, attractive, do not rot, cant be gnawed away by animals doesnt corrode, fire resistant
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