other natural stone type crushed stone ballast
Crushed Stone Stone Dust in bulk Groupe Bellemare. 30 – 50 mm (1 ¼ – 2 in.) Railway ballast; DRAINAGE STONE. This type of stone is used for water flow applications (drainage) and is available in a variety of grades depending on the work to be done. 12 mm (½ in. NET) 14 – 20 mm (½ – ¾ in.) 25 mm (¾ in. NET) 20 – 40 mm (3/4 – 1½ in.) STONE DUST