Transcript -- Rocks for Roads

Rocks for Roads

Jun 23, 2009 - 00:00:56

How a quarry works

Jun 23, 2009 - 00:07:39

Quarry managers explain how rock is formed and how they extract different layers of stone. Once blasted a...View more

Transcript -- How a quarry works

Jun 23, 2009

Transcript -- Quarry managers explain how rock is formed and how they extract different layers of stone....View more

Longterm sustainability of quarries

Jun 23, 2009 - 00:04:35

A look at the road laying process. The need to supply locally, use natural road products and protect the...View more

Transcript -- Longterm sustainability of quarries

Jun 23, 2009

Transcript -- A look at the road laying process. The need to supply locally, use natural road products an...View more