Particle Density Summarised Help
Particle Density Summarised Help
Australian Standards
Particle Density - Fine[AS 1141.5.1]
Minimum Data Requirements
Particle Density - Coarse[AS 1141.6.1]
Minimum Data Requirements
Preliminary Requirement
- A value for the Percent Passing 4.75 mm sieve is required.
Measurements
| Requirement | Value |
| Mass of Basket and Saturated Surface-Dry (SSD) Aggregate Under Water | > 0 |
| Mass of Basket Under Water | ≥ 0 |
| Mass of SSD Aggregate in Air | > (Mass of Basket and SSD Aggregate Under Water - Mass of Basket Under Water) |
| Mass of Oven Dry Aggregate in Air | ≤ Mass of SSD Aggregate in Air |
| Water Temperature (T) | 5 ≤ T ≤ 30 |
Related Documents
- AS 1141.5.1
- AS 1141.11.1
Completion Requirements
Values exist for;
- Particle Density on Dry Basis
- Particle Density on Saturated-Surface Dry Basis
- Apparent Particle Density
- Water Absorption.
Reported Results
| Standard Reporting Requirements | |
| Particle Density on Dry Basis (t/m3) | nearest 0.01 |
| Particle Density on Saturated Surface-Dry Basis (t/m3) | nearest 0.01 |
| Apparent Particle Density (t/m3) | nearest 0.01 |
| Water Absorption (%) | nearest 0.1 |
Formulae
Coarse Aggregate Calculations
Apparent Particle Density
ρA = (M1 x ρW) / (M1 - (W1 - W2))
where,
ρA= Apparent Particle Density (t/m3)
M1 = Mass of dry aggregate in air (g)
W1 = Weight of basket and aggregate under water (g)
W2 = Weight of basket under water (g)
ρW = Density of water at test temperature (from Table 1)
Particle Density on Dry Basis
ρD = (M1 x ρW) / (M2 - (W1 - W2))
where,
ρD= Particle Density on Dry Basis (t/m3)
M1 = Mass of dry aggregate in air (g)
M2 = Mass of SSD aggregate in air (g)
W1 = Weight of basket and aggregate under water (g)
W2 = Weight of basket under water (g)
ρW = Density of water at test temperature (from Table 1)
Particle Density on Surface-Saturated Dry Basis
ρS = (M2 x ρW) / (M2 - (W1 - W2))
where,
ρS= Particle Density on SSD Basis (t/m3)
M2 = Mass of SSD aggregate in air (g)
W1 = Weight of basket and aggregate under water (g)
W2 = Weight of basket under water (g)
ρW = Density of water at test temperature (from Table 1)
Water Absorption (%)
WA = (M2 - M1) x 100 / M1
where,
WA = Water Absorption (%)
M1 = Mass of dry aggregate in air (g)
M2 = Mass of SSD aggregate in air (g)
Weighted Calculations
Weighted calculations are not available on this screen. To get the weighted results you need to add the screen Particle Density - Coarse [As 1141.6.1] to the sample.