[Cob] official psi samples

[Janet Standeford]

You are awesome! Great idea.
Wish I'd had it earlier but will use the bag on the next batch.

By the way, does anyone know if you should add sand to this mix if it 
seems to contain so much clay you worry about it drying all the way 
through in time?

Would sand make it stronger as well, or weaker?

Janet Standeford OR
www.buildingnaturally.info (Owned by you)
A resource for healthy homes.