Building Materials - Engineering

Q1:

The filler used in plastic bitumen, is

A shale powder

B talc powder

C asbestos powder

D plastic powder

E none of these.

ANS:C - asbestos powder

The filler used in plastic bitumen, also known as bituminous mixtures, is typically a fine mineral aggregate such as sand, limestone, or granite dust.

This filler is added to the bitumen (a sticky, black, viscous liquid) to improve the physical and mechanical properties of the mixture, such as stability, strength, and durability.