Asphalt
Mastic asphalt is a type of asphalt which differs from dense graded asphalt (asphalt concrete) in that it has a higher asphalt/bitumen (binder) content, usually around 7-10% of the whole aggregate mix, as opposed to rolled asphalt concrete, which has only around 5% added asphalt/bitumen. This thermoplastic substance is widely used in the building industry for waterproofing flat roofs and tanking underground. Mastic asphalt is heated to a temperature of 210 degC (410 degF) and is spread in layers to form an impervious barrier about 20 millimeters (0.79 inches) thick.
How is asphalt used in the construction industry?
waterproofing
This thermoplastic substance is widely used in the building industry for waterproofing flat roofs and tanking underground.
asphalt