This experiment examined the particle-size distribution of soil using Sieve Analysis Method. The experiment was to determine the percentage passing in each sieve using Sieve Analysis. The sample was sieved through a series of sieves with varying opening sizes and measured the mass retained in each sieve. Results are plotted in a semi logarithmic graph and showed that it is relatively well graded because its uniformity coefficient lied within the set range.
The grain size distribution is a representation of the approximate distribution of soil grain sizes for a soil. The sieve analysis, also called mechanical method, measures the dry mass of soil retained on each sieve in a stack of sieves, where the sieve opening sizes vary from the largest to smallest going from the top to the bottom of the stack. All the soil particles retained on a particular sieve will have an ‘intermediate size’ or ‘average diameter’ that is smaller than the opening of the sieve above and larger than all the sieves below. Thus the individual particle sizes of the soil are not measured but the range of sizes (i.e. smaller than the sieve above and larger than the sieve retaining the particle) is determined. The grain size distribution is obtained by plotting the percent finer by dry mass, the percent of all the soil below a particular sieve, versus the log of the particle diameter, taken as the opening size of the sieve. A smooth curve is drawn to represent the grains size distribution. The grain size distribution is used to classify soils and to determine the suitability of soils for various engineering purposes.
This test is performed to determine the percentage of different grain sizes contained within a soil. The mechanical or sieve analysis is performed to determine the distribution of the coarser, larger-sized particles.
Determine the particle size distribution of a soil sample by applying the particle size analysis using the...