carport base - alternative to concreting

[brucewil]

hi,
I am looking for something to use as a base for my garage/laundry/store room as an alternative to laying a concrete slab.
something that will provide a firm base and not turn dusty, and off course the cheaper the better.
I was thinking compacted road base, maybe with some cement mixed in?
any sugestions.
cheers
Bruce

[Gumby]

Lilydale topping is good and when a bit of cement is mixed in, it goes very hard.

[Barry_White]

Compacted granite is your best road base and the cement mixed in to eliminate the dust. I live on granite country and the RTA uses granite as the prefered roadbase around here if they can get it.