[andrewwharton]

Absolutely, its compressive strength (~1 MPa) is so low that it's better to think of it as rigid insulation that anything structural or load bearing.

[dogma1138]

For reference that’s less than dry wall...

[imglorp]

Well that might be ok if you make it thicker. Eg straw bale walls for housing. Also only good for about one story but it's nice to have alternatives.