5) mass ofcourse aggregates = bulk density X volume factor
6) mass of FA
dnsity = (mass/volume)
volume of FA = 1m^3 – (V+V+V+V)
dnsity of FA = RD x 1000kg/m^3
mass of FA = density x volume
that volume is the volume of all other materials
density = relative density x density of water (1000kg/m^3)