Features

Units

Sand

Crushed granites

Specification for hydraulic concrete [45] [46]

Natural sand (from Donsin)

Sand recycled (from Kamboinsin)

Natural crushed (from Donsin)

Recycled Crushed (form North Interchange)

Recycled crushed (from Shell Dapoya station)

Granular class (d/D)

mm

0/5

0/2

16/25

16/25

16/25

-

Fineness modulus (MF)

2.27

3.1

-

-

-

1.8 ≤ MF ≤ 3.2

Flattening coefficient (A)

%

-

-

16.47

7.63

9.87

Vss (A) ≤ 20 and Vss (C) ≤ 40

% fine < 0.08 mm

%

0.5

10.5

-

-

-

Vss (A) ≤ 12 and Vss (C) ≤ 18

Apparent volumetric mass

g/cm³

1.47

1.35

1.45

1.46

1.48

ρ_ap > 1200 kg/m³

Absolute density (ρa)

g/cm³

2.63

2.66

2.65

2.65

2.65

2200 kg/m³ < ρ_a < 3000 kg/m³

Actual density after oven drying

g/cm³

-

-

2.63

2.6

2.61

2200 kg/m³ < ρ_rd < 3000 kg/m³

Actual saturated dry surface density

g/cm³

-

-

2.64

2.61

2.62

2200 kg/m³ < ρ_rsd < 3000 kg/m³

Water absorption coefficient

%

-

-

0.22

0.93

0.57

Vss ≤ 2.5 and Vss (C) ≤ 6

Visual Sand Equivalent

%

89.3

72

-

-

-

PVC > 65%

Equivalent of sand on piston

%

85

66

-

-

-

ESP > 60

Superficial cleanliness

%

-

-

0.51

0.56

0.54

Vss ≤ 1.5 or 3

Los Angeles (LA) coefficient

-

-

28

19

18

LA ≤ 30