S.KALAIYARASAN

 Profile Answers by S.KALAIYARASAN 

• Apr 25th, 2009

 

There are 4 layers.
1. Asphalt
2. Concrete
3. P.C.C.
4. Sand filling

S.KALAIYARASAN

 Profile Answers by S.KALAIYARASAN 

• Apr 27th, 2009

 

There are 4 layers.

1.) Bitumen layer
2.) Concrete
3.) Metal bed
4.) Gravel