A rammed-earth architect and myself have had the idea of building rammed-earth water tanks that would be coated with ceramic glaze on the inside, as an alternative to a cement / concrete tanks, for remote areas of Nepal, where transporting cement would be logistically unsound.
We have yet to experiment and see the cost effectiveness of our idea.
As for now, I would like to know what type of glaze I could use to coat the inside of the tank and how I could fire it?
Is there a recommended low-temperature glaze?
Can it be fired cheaply? (For instance I was thinking of filling the tank with saw-dust and feeding oxygen / air through a ventilation pipe so temperature would soar).
I am merely speculating here, but it seems like a valid idea.
Would you have some suggestions regarding glazing?