Question: 1. Calculate the cold feed rate in tons per hour (tons/h) for a drum-mix asphalt plant under the following conditions
Asphalt content = 6%
Aggregate composition:
Coarse A = 50%
Coarse B = 20%
Sand = 24%
Mineral filler = 6%
Field moisture content of gravel and sand = 6%
Drum capacity at required moisture removal = 140 tons/h (127 t/h)
2. Calculate the hot feed required per batch for an asphalt batch plant producing 3 tons (2.7 t) per batch under the following conditions:
Asphalt content = 5%
Aggregate composition:
Coarse A = 45%
Coarse B = 35%
Sand = 15%
Mineral filler = 5%