Figure 8-2.Continuous-flow asphalt plant.
Figure 8-3.Drum-mix asphalt plant.
asphalt plant (fig. 8-2), or a drum-mix
asphalt plant (fig. 8-3).
ASPHALT PLANT OPERATIONS
Batch plants get their name because
they produce hot mix in batches; one batch
at a time, one after the other. The size
of
a
batch
varies
according
to
the
capacity of the plant pugmill (fig. 8-4).
Batch
plants
are
distinguished
from
continuous-type
plants,
such
as
drum-
mixers, which produce hot mix in a steady
flow.
Aggregate Cold-Feed System
The
aggregate
storage
and
cold
feeder system (fig. 8-5) moves (unheated)
aggregate
from
storage
into
the
8-2