Sand or Concrete for Tractor Ballast Box? - The Home ...
29-07-2018· Re: Sand or Concrete for Tractor Ballast Box? Sand, depending on the flavor, and if it's dry or wet, is 2,700 to 3,100 lbs per cu/yd. We generally used 3,000 lbs per cu/yd to design to. Concrete, depending on the gravel content & mix, is 3,700 to 4,100 lbs per cu/yd.