Astm C128 Specific Gravity And Absorption Of Fine Aggregate Pdf May 2026

[ G_sa = \fracM₄V_p - C - (B - M₄) ] Where ( B - M₄ ) = water absorbed.

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) [ G_sa = \fracM₄V_p - C - (B

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). Vp = 450 mL