As nouns the difference between sawdust and pykrete
is that sawdust is collective name for the fine particles (dust) of wood created by sawing while pykrete is a solid substance made of ice and sawdust, stronger than pure ice.
sawdust
Noun
(-)
Collective name for the fine particles (dust) of wood created by sawing.
Derived terms
* sawdust trail
* sea sawdust
pykrete
Alternative forms
*picrete
Noun
(-)
A solid substance made of ice and sawdust, stronger than pure ice.
Derived terms
* super-pykrete