Bitumen damp-proof course
There are four types of bitumen dpc, as follows: (1) bitumen dpc with hessian base (2) bituman dpc with fibre […]
There are four types of bitumen dpc, as follows: (1) bitumen dpc with hessian base (2) bituman dpc with fibre […]
Polythene sheet for use as a dpc should be black, low density polythene sheet of single thickness not less than
A macadam in which the aggregate, of relatively uniform size, has been coated with bitumen.