56 Stone; CONCRETE STONE. 1 ½" 1" 3/8" Washed; ASPHALT MIX STONE. 1" ¾" Chips; ½" 3/8" Washed Crusher Fines; Crusher Fines; RIP RAP STONE. Type A 36" Type B 6'12" CHIP SEAL MATERIAL TOPSOIL MORTAR AND CONCRETE SAND OPEN GRADED FRICTION COURSE ENGINEERED FILL BACKFILL MATERIALS. Back to Top. Home. About. Materials. Team. contact. .