limestone and building materials

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  • Created by: mathu
  • Created on: 13-06-12 17:03

building materials
limestone is heated with clay to make cement. cement is mixed with sand to make mortar. mortar is mixed with sand and aggregate to make concrete.
limestone: widely available, cheaper than granite/marble, easy rock to cut, more hardwearing than marble, doesn't rot when it gets wet. can't be gnawed away by insects/rodents. fire-resistant.
concrete: doesn't rot when it gets wet, can't be gnawed by insects/rodents, fire-resistant, doesn't corrode, stronger when reinforced with steel bars
cement: can't be gnawed by insects/rodents, fire resistant, doesn't rot when wet 

calcium carbonate

  • limestone is made up of mainly calcium carbonate (CaCO3)
  • can be decomposed by heating (thermal decomposition) to make calcium oxide and carbon dioxide
  • - magnesium, copper, zinc, calcium and…


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