Figure 6-9.-Precast panels being erected by use of crane and spreader bars.
place by cranes, using spreader bars (figure 6-9).
Figure 6-10 shows erected panels in final position
The casting surface is very important in
making with precast concrete panels. In this
section, we will cover two common types: earth
and concrete. Regardless of which method you use,
however, a slab must be cast in a location that will
permit easy removal and handling.
Castings can be made directly on the ground
cement poured into forms. These earth surfaces are
Figure 6-10.-Precast panels in position.