natural soils on the compaction characteristics,
compaction tests were carried out for five soils (Soil
nos.10, 17, 21, 24 and 39) with the soil fraction passing
through 425 lmmixed with 10% and 20% (by weight basis)
sand fraction having particle size >425 lm obtained by
sieving a locally available natural river sand with a
425 lm sieve. This sand fraction retained on 425 lm is
termed as Coarse Fraction (CF) in the further discussion.