posted 7 years ago
I may have recently acquired a mountain. This mountain is comprised of Biotite Gneiss, Syenite, and Hornblende Gneiss.
The Hornblende is of the ferro-type, containing around 25% iron. I am not necessarily after the iron - the balance of the content is Silia (obviously) Aluminum (Sapphire) and Calcium (of the limey variety).
The process of charcoal smelting of the abundant pulverized stone would liberate the iron, but produce the "byproduct" of alite and belite - as well as aluminosilicate pozzolans - Roman Concrete (the kind that lasts 2000 years)
Among the abundant "sand" there are many, many brick sized chunks of the nicest, most awesome building stone - Gneiss.
My thought is to experiment with biochar flame (from the pyrolysis of otherwise useless chunks of pallets) and my sand - perhaps with some salvaged Gypsum (sheetrock scrap) for to make MORTAR.
I would love to see the Permaculture folk address the synthesis of mortar from on-site materials - especially on land deficient in limestone (that one is easy)
My chemistry is not strong - but it seems this is doable.
I intend to build a Castle. The CO2 and SOx emissions from the process are air for algae (grown in dilute pee, then used for soap and fuel) - so please, no lectures about "greenhouse emissions" (which would be ironic, seeing as I have to build some greenhouses to grow at 8900 ft elevation!)
Just. Build. The. Damn. Thing!