Type SR 21 Annex E. T3 Blinding(0/4mm)Crushed Rock Fines (0-4mm)2/6.3mm Aggregate (6mm)4/10mm Aggregate (10mm)6.3/14mm Aggregate (14mm)10/20mm Aggregate (20mm)20/31.5mm Aggregate (28mm)20/40mm Aggregate (40mm) Tonne Compare Share