Astm C128 Specific Gravity And Absorption Of Fine Aggregate Pdf

[ \textAbs = \fracB - M₄M₄ \times 100 ]

The values derived from ASTM C128 are not merely academic; they have direct economic and structural implications. [ \textAbs = \fracB - M₄M₄ \times 100

$$Absorption (%) = \left( \fracA - DD \right) \times 100$$ [ \textAbs = \fracB - M₄M₄ \times 100

$$G_sa = \fracDB + A - C$$ Note: The denominator uses the mass of the SSD sample ($A$) because apparent gravity ignores the volume of water-permeable pores in the density calculation. [ \textAbs = \fracB - M₄M₄ \times 100

| 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 |

Bulk Specific Gravity (SSD): Based on the saturated-surface-dry state, where pores are filled with water but the surface is dry.