I usted to think like you, put big rock 1.5 to3.0" down first. But in the early 2000's I hauled Lime stone that was a very fine and pure. Blew it into 6x6 trucks that spread it on fresh watered mud. Then they ran big Self propelled tillers about 8" deep. 24 to 36 hrs later you could dolly a loaded semi trailer down where was a soybean field 2 days ago. We were building a new road across open fields. Would do this 2 times sometimes more. Also did a lot of big parking lots and big buildings Lowes stores. Would do 2 lifts on whole lot then maybe 3 more just on building footprint. Concrete was poured on this. They trenched the footer about 6 ft deep. And filled with concrete. So I use Ca 6. 3/4" and about 30% lime. Will get hard and end up costing you less. My son has a 1400 ft drive and It takes at least 30 tons of rock a.year. more would be better.
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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