Computers give us the opportunity to develop new image
analysis test methods for measuring aggregates. These
methods are much more accurate and less time consuming
than traditional methods. Image analysis, IA, has been used
in numerous studies on aggregate size and shape [5,6].
These deal with laboratory studies of size and shape both on
a macro- and microscopic scale [7–16]. There are several
other methods that measure the 3-D morphologies of
particles. Some methods image individual particles placed
in holders [13,14]; each particle is imaged from two
orthogonal views. These methods provide a 3-D analysisof the individual particles but require placement of each
particle for individual imaging. Still another 3-D method
[15] images individual particles from two orthogonal views
as they pass on a conveyor belt