These spacers are designed in sizes of 75and 100 mm. in two types to
provide cover for the pile cage. 1-Type (o) At the time when pile cage
re-bars are being set, the spiral re-bars are pressed through the (o)
center spacer holes and in proportion of the pile cage diameter a
maximum of 8 numbers of spacers are distributed in pile cage surrounding
in each spiral
bar and are placed with the height of 1.5 meters from
each other. 2- Type (v) After the bar mat texture of the pile cage
re-bars are formed and when the pile cage is ready to enter the
excavated hole, a maximum of 8 numbers of spacers are arranged in each
spiral bar from bottom to top in the proportion of the pile cage
diameter and with distance of 1.5 meters, they are pressed and clipped
through the (v) cleavage into the spiral re-bars, to create a concrete
cover distance from the side wall