The ABCs of Gravel - N.C. Forest Service
ABC gravel typically contains stone that is no larger than 1 to 1.5 inches. Larger stone (3-inch) has more strength to support heavy logging equipment. ABC and 3-inch crusher run gravel contain a high percentage of fines (gravel dust) that add no more strength to a road than the soil beneath it. In some applications though, the fines
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