• 56 seconds
    Rocks for Roads
    An an introduction to this album
    23 June 2009, 2:37 am
  • Transcript -- Rocks for Roads
    Transcript -- An an introduction to this album
    23 June 2009, 2:37 am
  • 7 minutes 39 seconds
    How a quarry works
    Quarry managers explain how rock is formed and how they extract different layers of stone. Once blasted and processed, it is used to build roads.
    23 June 2009, 2:36 am
  • Transcript -- How a quarry works
    Transcript -- Quarry managers explain how rock is formed and how they extract different layers of stone. Once blasted and processed, it is used to build roads.
    23 June 2009, 2:36 am
  • 4 minutes 35 seconds
    Longterm sustainability of quarries
    A look at the road laying process. The need to supply locally, use natural road products and protect the environment around quarries.
    23 June 2009, 2:35 am
  • Transcript -- Longterm sustainability of quarries
    Transcript -- A look at the road laying process. The need to supply locally, use natural road products and protect the environment around quarries.
    23 June 2009, 2:35 am
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