choice of quarry rock dust over natural sand as fine aggregate

6 Is natural rock cursed stone sand 7 Can be used as by product for producing ecofriendly blocks pavers and fly ash bricks Table 11 Physical properties of quarry rock dust and natural sand Quarry rock Natural sand method Specific gravity 254260 260 IS 2386 Part III 1963 Bulk relative density kgm 3 17201810 1460 IS 2386 Part