Would this be true for the Pompeii as well? I do have an inexpensive and easy source of this concrete (and mortar) and was already planning on purchasing it for the oven build.
It never occurred to me to use it in pouring the hearth. I'm planning on trying to do the island hearth, BTW, which seems slightly challenging since I have to pour the island while the perlite insulative layer is still wet, which means removing the island forms. Time will be important.
Tarik |