La pedra en sec. Materials, eines i tècniques tradicionals a les illes ...

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** * ** 5 5.7 THE WORK
mer and are laid in a disorderly way
with no stratification or any type of
crowning.
· Slightly dressed bond: the stones
have been minimally worked so as to
obtain spindle-shaped pieces with a
face and a tail which helps laying and
stability. The stones are laid with no
apparent arrangement. Nevertheless,
in this type of bond, as well as in the
most dressed ones, some stratification
based on the size of the stones
can be distinguished; in general the
biggest stones are at the bottom and
the smaller ones on the top.
· Dressed irregular bond: has the
same characteristics as the previous
type, the difference being that the stones
have been dressed more carefully.
· Highly dressed irregular bond: the
faces of the stones show obvious
signs of having been worked thoroughly
in order to achieve a vety
smooth face, the result is that the terrace
wall has a flat facing with few
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projecting points.
. Semi-polygonal facing: both the
faces and the sides of the stones have
been thoroughly worked to obtain
almost geometric sides. These stones
when properly laid give an almost
closed joint .
. Polygonal facing: the stones are worked
until irregular shapes defined by
perfectly lineal segments are obtained.
These pieces are fitted together
vety carefully to get a properly closed
joint. The search for perfection in
these facing reaches the point of working
on it even when the terrace wall
has been finished.
There is a series of rock types which
give rise to bonds which would be difficult
to include in these categories
due to the nature of the stones; they
include walls built with stone slabs
which means the stones have to be
laid in a row.
If a terrace wall has to be built in a
place where there is a projecting rock
or a root which sticks up above the