I find the sizes some talk about on here completely foreign compared to what we get quoted locally.
Here is a PDF of rock sizes available at one of several different local quarry's.
Midwest minerals products I don't know what many of the designations are. You can see that KDOT has their own specs.
AB3 is what we use to top roads and driveways as it has everything from about 1" down in size, with considerable fines for good packing.
2 1/2x 1 1/2 is what you see in my pictures of the stuff I sprinkled in the water. (used for lateral rock in septic sewage systems) What it means is everything that will pass through a 2 1/2" screen then taking out everything that will pass through a 1 1/2" screen ( in other words fines removed). The 2 1/2 x 0 means everything that will pass through a 2 1/2" screen including all fines.
Shot rock is loaded right from the explosive blast without being processed. I've only used it once in a crossing where we needed a lot of fill and some big rock. A couple of the rocks were 3' in diameter with everything below that without being run through a crusher.
I think the ASTM stuff is for concrete. I've been using ASTM 3/4 and man sand to make concrete around the farm for various projects. The man sand is more like chat and can't be finished like concrete with sand in it can.
Lots of rock grades on that chart I don't know what they are. If I need something other than what I've been using, best to just go to the quarry and look see what is in the piles.
