Nature of the sample

Specific weights (g/cm3)

Mixture of sand (70% river sand and 30% crushed sand 0/4)

2.60

Reddish sand of the Congo River

2.59

Mixture of sand (70% Djiri sand and 30% crushed sand 0/4)

2.59

Djiri quarry white sand

2.58

Mixture of sand (70% Mfilou sand and 30% crushed sand 0/4)

2.58

White sand from Mfilou quarry

2.54

Crushed sand 0/5

2.50