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Barite, Limonite, Magnetite, Hematite, Iron
3- Aggregate Classification: Availability
Natural Grave
River or seashore gravels; desert, seashore and windblown sands
Rounded in nature
Crushed Aggregates.
Crushed rocks of all types; talus; scree
Angular in nature
4- Aggregate Classification : Shape
Fine aggregate : 6 standard sieves with openings from 150 μm to 4.75 mm. (150 μm,
300 μm, 600 μm, 1.18mm, 2.36mm, 4.75mm)
Coarse aggregate: 5 sieves with openings from 4.75mm to 80 mm. (4.75mm, 10mm,
12.5mm, 20mm, 40mm)
Fineness Modulus (FM)
9