Limestone and Building Materials Flashcards
How can limestone be used as a building material?
Can be quarried and cut into blocks
What does limestone mainly contain?
Calcium carbonate
CaCO(3)
What does calcium carbonate decompose to produce?
Calcium oxide
Carbon dioxide
What do other metals produce when they undergo thermal decomposition?
Metal oxide
Carbon dioxide
What does calcium oxide and water produce when reacted together?
Calcium hydroxide Ca(OH)2
What can calcium hydroxide be used for?
Neutralise soils and lakes faster than limestone
What is calcium hydroxide solution also known as?
Limewater
What does calcium hydroxide solution produce when reacting with carbon dioxide?
Calcium carbonate
Water
What does powdered limestone and powdered clay produce when roasted?
Dry cement
How is dry cement produced?
Powdered limestone and powdered clay are roasted in a rotary kiln
How is mortar produced?
When cement is mixed with sand and water
What is mortar used for?
Hold together bricks and stone during building
How is concrete produced?
When cement is mixed with water, sand and gravel
What does a metal carbonate produce when reacting with acid?
Salt
Water
Carbon dioxide
What is limestone damaged by?
Acid rain
Name three advantages of using limestone
Found naturally so is easily quarried
Allows new houses to ‘fit in’ with older houses
Better roads built to cope with quarry traffic
Creates local jobs
Other industries are attracted to the area (provide more jobs)
Quarry might invest in community to ‘win over’ locals
Name three disadvantages of using limestone
Could be more expensive to quarry than use other building materials Quarries destroy landscapes and habitats Increased traffic Noise pollution Health problems from dust particles Reduced tourism in the area
Have you read the book for the advantages and disadvantages of using limestone, concrete and glass as a building material?
