What is the difference between “Maximum
size” and “nominal maximum size” of aggregates?
The
smallest sieve opening through which the entire amount of aggregate is required
to pass is called the maximum size.
The
smallest sieve opening through which the entire amount of aggregate is permitted to pass is called the nominal maximum size.
For
example, for the aggregate meeting the specification limits shown below
would
have a maximum size of 37.5 mm
(1-1/2 in.) and a nominal maximum
size of 25.0
mm (1 in).