What Makes a Good Driveway Gravel?
A good driveway material needs three things. It has to compact into a solid surface instead of staying loose underfoot or under tires. It needs a mix of particle sizes, from fine dust down to larger stone, so the pieces lock together instead of rolling around. And it needs to shed water instead of holding it, so the drive does not turn to mud or wash out in a storm. Crushed materials with angular edges, like asphalt milling and flexbase, compact and lock together far better than smooth, rounded gravel like pea gravel or river rock.