in Highway Pavements recategorized by
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The following observations are made while testing aggregate for its suitability in pavement construction:

  1. Mass of oven-dry aggregate in air $=1000 $ g 
  2. Mass of saturated surface-dry  aggregate in air $=1025 $ g
  3. Mass of saturated surface-dry  aggregate under water $=625 $ g

Based on the above observations, the correct statement is

  1. bulk specific gravity of aggregate $=2.5$ and water absorption $=2.5 \%$
  2. bulk specific gravity of aggregate $=2.5$ and water absorption $=2.4 \%$
  3. apparent specific gravity of aggregate $=2.5$ and water absorption $=2.5 \%$
  4. apparent specific gravity of aggregate $=2.5$ and water absorption $=2.4 \%$
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