Melco - Material Characteristics

Material	Density [lbs/ft3]		Angle of Repose (°)	Angle of Surcharge (°)
Material	Lower	Upper	Angle of Repose (°)	Angle of Surcharge (°)
Alumina	50	65	22	10
Aluminium Oxide	70	120	29	15
Aluminium Silicate	49	49	44	5
Aluminium Sulphate	54	54	32	20
Aluminium, Chips	7	15	45	30
Ammonium Chloride	52	52	44	10
Ammonium Nitrate	45	45	44	25
Ammonium Sulphate	45	58	32	10
Anthracite	60	60	27	20
Asbestos	81	81	44	25
Asbestos, Shredded	19	25	45	30
Ash (Coal, dry)	40	45	42	30
Asphalt	80	86	45	30
Barytes	180	180	44	20
Basalt, (50-80mm) lump	105	110	0	25
Bauxite, (75mm) lump	75	85	44	20
Bauxite, ground dry	68	68	29	20
Bauxite, R.O.M.	80	90	31	20
Bentonite, 100 Mesh	50	60	42	20
Bentonite, Crude	34	40	44	20
Bicarbonate of Soda	41	41	32	20
Borax, lumps	60	65	44	20
Brick, hard	125	125	42	30
Brick, soft	100	100	42	30
Carbon, powder	4	7	44	10
Cast Iron, chips	130	200	45	30
Cement, clinker	75	95	40	25
Cement, Portland	94	94	44	25
Cement, Portland loose	60	84	40	20
Cement, Portland slurry	91	91	0	5
Chalk, (50-80mm) lump	80	86	45	10
Chalk, 100 Mesh	65	75	45	25
Charcoal	17	25	35	25
Clay, dry loose lumps	62	75	45	25
Clay, dry fines	100	120	35	20
Clinker	37	96	35	25
Coal, coking pulverized	30	37	0	10
Coal, bituminous, R.O.M.	45	55	38	25
Coal, lignite	45	55	38	25
Coal, anthracite	60	60	27	20
Coal, bituminous 100 Mesh	50	54	45	25
Coal, bituminous 12mm	43	50	40	25
Coke, breeze	25	35	45	22
Coke, run of oven	25	30	30	25
Coke, loose	23	35	44	30
Coke, petroleum calcined	35	45	44	20
Compost	30	50	44	25
Concrete, 150mm lump	110	150	0	15
Concrete, wet	110	156	10	5
Concrete, slag	90	110	30	20
Concrete, blocks	130	150	0	0
Copper Ore, crushed	130	156	44	25
Copper Sulphate	75	85	31	20
Cork, granulated	12	15	40	30
Cryolite	110	110	44	20
Cryolite (50-80mm) lump	100	105	44	20
Cryolite, dust	75	90	44	5
Diatomaceous earth	11	14	44	25
Dolomite, lump	90	100	0	0
Earth, dry	69	81	45	20
Earth, wet mud	100	109	0	5
Earth, excavated dry	70	80	35	20
Earth, wet	100	110	45	20
Epsom Salts	40	50	44	25
Feldspar, (30-80mm) lump	91	109	34	20
Feldspar, 12mm screenings	70	85	38	20
Flour, wheat	41	41	0	10
Fluorspar, (38-75mm) lump	110	120	46	30
Fluorspar, 12mm screenings	35	105	45	30
Flue dust, boiler dry	34	41	20	5
Foundry sand, loose	81	91	0	15
Foundry slag	70	100	44	15
Garbage, household	50	50	0	0
Granite, (38-60mm) lump	85	90	29	10
Granite, (80-150mm) lump	85	90	29	10
Granite, 12mm screening	80	90	29	10
Granite, chips	95	100	44	15
Granite, flakes	40	40	44	10
Gravel	90	100	40	20
Gravel, dry	91	100	40	25
Gravel, wet	100	125	40	20
Guano, dry	70	70	29	10
Gypsum (12-75mm)	70	80	30	10
Gypsum, (80-150mm) lump	70	80	30	20
Gypsum, dust	60	70	42	30
Illmenite	140	140	44	10
Iron, ore	100	200	35	25
Iron Oxide, pigment	25	25	40	30
Iron, chips	125	125	30	30
Iron, ore crushed	135	150	30	20
Iron, pellets	131	175	35	10
Kaolin clay	62	62	35	0
Kaolin, ground	42	56	45	5
Kaolin, 100 mesh	42	56	45	30
Kaolin, <75mm lumps	63	63	35	20
Lactose	32	32	44	10
Lead, ore	200	270	30	15
Lead, arsenate	72	72	45	25
Lead, oxides	60	150	45	25
Lime, fine	60	66	43	0
Lime, ground < 3mm	60	60	43	30
Lime, hydrated	32	40	42	25
Limestone, (50-80mm) lump	90	95	45	25
Limestone, agricultural 3mm	68	68	44	10
Limestone, crushed	85	90	35	25
Magnesium chloride	33	33	40	25
Magnesium Sulphate	70	70	44	20
Manganese dioxide	80	80	44	20
Manganese, ore	125	140	40	20
Manganese, Sulphate	70	70	44	10
Marble, crushed <12mm	90	95	44	10
Mica, (50-80mm) lump	91	95	0	5
Molybdenite, powdered	107	107	40	20
Nickel, ore	80	150	44	35
Paper, pulp	40	62	19	5
Paper, pulp pellets	12	25	0	10
Phosphate, rock	75	85	40	25
Phosphate, ground	51	51	45	30
Potash, salts	80	80	29	10
Potassium carbonate	51	51	29	10
Potassium chloride, pellets	120	130	44	15
Potassium nitrate	76	76	29	10
Potassium Sulphate	42	48	45	30
Pyrites Iron, 50-75mm	135	145	29	20
Pyrites, pellets	120	130	44	10
Quartz, 38-75mm	85	95	35	25
Quartz, 50-80mm lump	91	95	35	25
Quartz, dust	70	80	40	5
Quartz, screenings	80	90	35	15
Rock, soft excavated	100	110	44	20
Rubber, pellets	50	55	35	20
Rubber, reclaimed	25	30	32	18
Salt, dry course	40	55	35	20
Salt, dry fine	70	80	25	5
Sand, foundry	90	100	44	30
Sand, foundry shakeout	90	100	39	25
Sand, littoral damp	110	130	45	25
Sand, littoral dry	90	110	35	20
Sand, siliceous dry	125	125	29	10
Sandstone, chips	85	90	44	20
Sawdust	10	13	36	5
Sewage, sludge	40	50	29	10
Shale, broken	90	100	29	10
Shale, crushed	85	90	39	25
Slag, blast furnace, crushed	80	90	25	10
Soda, ASM	55	65	32	25
Sugar, beet, pulp dry	12	15	35	30
Sugar, beet, pulp wet	25	45	35	30
Sugar, cane knifed	15	18	45	30
Sugar, powdered	50	60	44	10
Sugar, raw cane	55	65	45	20
Sugar, beet wet	55	65	30	20
Sulphur, crushed <12mm	50	60	44	15
Sulphur, <75mm	80	85	44	15
Talc, 12mm screenings	80	90	29	20
Talc, powder	50	60	20	10
Wheat	45	48	28	10
Wood, chips	10	30	45	30
Zinc, concentrates	75	80	25	5
Zinc, ore crushed	160	160	38	20
Zinc, oxide heavy	30	35	55	10
Zinc, oxide light	10	15	45	10