Table 3

Physical properties of copper slag

PropertyValue
Grain size analysis
 Gravel size: %1.00
 Sand size: %98.9
 Silt and clay sizes: %0.05
Hardness on Moh’s scale6.5–7.0
Specific gravity3.6
Plasticity indexNon-plastic
Swelling indexNon-swelling
Granule shapeAngular with sharp edges
Maximum dry density: kN/m323.5
Optimum moisture content: %6
Direct shear test
Cohesion: kN/m20
Angle of internal friction: °40
Coefficient of permeability, k1.54 × 10−2 cm/s
CBR: %3.5

CBR, California bearing ratio

(Courtesy: Sterilite Industries Ltd, Tuticorin, Tamil Nadu, India)

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