Elisa Breland wrote:
I really wish we could use our "dirt" locally we call it "moon dust" it's actually very fine granite dust.
You also mentioned finding a replacement for Portland cement..
So just a little shout out for geopolymer: I have played with geopolymers a few different ways, and I was impressed with it. you may find a desirable use for it, using your granite sand and limestone aggregates-- if you can come up with cheap waste pozzolan. Something to consider while you are calling around...
"Here's what I could make out from this study which uses "waste mud" from a mining operation as the active alumina-silicate pozzolan (fly ash, volcanic ash, powdered slag, silica fume, and metakaolin are other examples of pozzolans)." --http://opensourceecology.org/wiki/Talk:Geopolymers
A rented/borrowed full size truck and trailer can haul a lot of Scoria, the stuff is pretty light 800-1200 lbs/yard. Think I hauled 12 yards with a worn out 3/4 ton up steep roads no problem. But that makes for some trips. Maybe it could possible to 18 wheeler dump somewhere at base of the mountain / twisty steep stuff and haul bags up to site in pickup... Not to be pushy here, its just that Scoria bags are a favorite of mine.