Friday, February 4, 2011

Rocks used in Road


Igneous Rocks
  
 granite, basalt, gabbro and the most important species used in the best way to carry big weights.

Metamorphic Rock 

marble, gneiss and schist column is not suitable as material for road construction because it is weak in bearing pressure means the break.

Sedimentary rocks 

limestone, sandstone and clay stone used limestone and dolomite in the construction of roads to withstand the pressure.
 

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