11-09-2011, 03:14 PM
For putting down roads and driveways, "base course" which is crushed blue rock is best. It doesn't wash away as easily and comes in different sizes.
Red Cinder works best for architectural applications and can be compacted to become more solid. It will not wash away as fast as black cinder.
Black Cinder is preferred(by me[8D])for agricultural applications as it stays loose and doesn't pack down so easily. It's porosity helps retain water and when mixed with dirt is a good planting medium.
My humble opinions from working Ag, building, and dakine.
Red Cinder works best for architectural applications and can be compacted to become more solid. It will not wash away as fast as black cinder.
Black Cinder is preferred(by me[8D])for agricultural applications as it stays loose and doesn't pack down so easily. It's porosity helps retain water and when mixed with dirt is a good planting medium.
My humble opinions from working Ag, building, and dakine.