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Appendix DVoid fraction calculations from tests Details of notations on page 51 Weight of plastic cup for water measurements: 8 g Weight of plastic cup for the sand: 3.8 g Density of water = 998 kg/m3
Exact amount of water added: 
Weight dry sand: 
Density of dry silica sand = 1602 kg/m3 Volume of dry silica sand: 
Volume of total volume is the same as volume of dry sand since this includes air filled voids between sand grains.  (D-1)
Void fraction for sharp sand Exact amount of water added: 
Volume of dry sharp sand = 0.2*10-3 m3 Volume of total volume is the same as volume of dry sand since this includes air filled voids between sand grains. Void fraction of sharp sand: 
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