Crushed concrete containing 70% hard aggregate rock from an airport runway. This is a very stable, high quality product and will qualify for specific DOT specifications. It will not break down like sidewalk or parking lot concrete and also limestone rock. All sizes and types available including, but not limited to road rock, base rock, rip rap, etc. This product is ideal for residential, farm, oilfield roads, parking lots, etc. This is a CLEAN product and contains no wire or other foreign material. For additional information please call 785-623-0779 or 785-623-6828. If you prefer to email, please include your telephone number.