Estimating the Total Dissolved Salts of Soil from the Grain Size Distribution Curve

A procedure is presented to calculate Total Dissolved Salts of Soil. The grain size distribution curve could be uttered as a normal probability distribution cumulative curve and the frequency congruous to Total Dissolved Salts is consequently found. This frequency is adopted as the percent finer congruous to the Total Dissolved Salts. a new relation is found for the Estimate the Total Dissolved Salts by using the final percent finer. A lot of Grain size distribution curves of soil samples are gathered and the value for the Total Dissolved Salts of each soil sample is determined using the final percent finer. The values of the Total Dissolved Salts obtained from these gradation curves are compared with those found using the ordinary test for each soil sample. The results have shown good agreement for using the final percent finer that presented in this paper to determine the total dissolved salt for soils instead of using the usual long test.