1.0 OBJECTIVE The sieve analysis determines the grain size distribution curve of soil sample by passing them through a stack of sieves of decreasing mesh opening sizes and by measuring the weight retained on each sieve. The sieve analysis is generally applied to the soil fraction larger than 75m 2.0 INTRODUCTION Sieving can be performed in either wet or dry conditions. Dry sieving is used only for soil with a negligible amount of plastic fines such as gravels and clean sand, where as wet sieving is applied to soils with plastic fines. According to the British Standard, dry sieving may be carried out only on materials for which this procedure gives the same result as the wet-sieving procedure. This means that it is applicable only to clean granular materials, which usually implies clean sandy or gravelly soils that is, soils containing negligible amounts of particles of silt or clay size. Normally the wet-sieving procedure should be followed for all soils...