Let ( B = M₂ - M₁ ) (SSD mass) Let ( C = M₃ - M₂ ) (mass of water added after aggregate) Let ( V_p ) = calibrated volume of pycnometer = mass of water to fill pycnometer (from calibration)
B = 500 g, Vp = 450 mL, C = 340 mL → Bulk SSD = 500/(110) = 4.54 (impossible – sand ~2.6). This shows C should be ~ Vp – (B/2.6). Let ( B = M₂ - M₁ )
[ \textAbs = \fracB - M₄M₄ \times 100 ] 5. Sample Data & Results | Parameter | Value | |-----------|-------| | Pycnometer volume (Vp) | 450.0 mL | | Mass empty pycnometer (M₁) | 200.0 g | | Mass pycnometer + SSD agg (M₂) | 700.0 g → SSD mass (B) = 500.0 g | | Mass pycnometer + SSD agg + water (M₃) | 985.0 g | | Mass of water added after agg (C = M₃ – M₂) | 285.0 g | | Mass oven-dry agg (M₄) | 490.7 g | Sample Data & Results | Parameter | Value