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LIMESTONE PowerPoint Presentation

LIMESTONE

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LIMESTONE

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  1. www.CHEMSHEETS.co.uk LIMESTONE © www.chemsheets.co.uk GCSE 026 08-April-13

  2. Limestone quarry

  3. Topley Pike quarry in the Peak District National Park

  4. All built with limestone

  5. Paving Chippings To neutralise acidic lakes Chippings in roads

  6. CaCO3 CaO + CO2 calcium carbonate calcium oxide (limestone) (quicklime) CaO + H2O  Ca(OH)2 calcium oxide calcium hydroxide (quicklime) (slaked lime)

  7. Lime kilns (old and new)

  8. Farmer spreading calcium hydroxide to neutralise acidic soil

  9. Testing for CO2 with limewater Limewater = calcium hydroxide solution Testing for CO2 with limewater (calcium hydroxide solution)

  10. Powdered limestone + Powdered clay Heat in rotary kiln CEMENT

  11. Cement + Sand + Water + Crushed rock CONCRETE

  12. Concrete can break if stretched or bent

  13. Steel reinforced concrete

  14. Steel reinforced concrete

  15. Bahai Lotus Temple in Delhi, India – made of concrete (1980)

  16. Cement + Sand + Water MORTAR

  17. Mortar weathers and brickwork must be re-pointed.