<< Click to Display Table of Contents >> Navigation:  Chapter 9 Geotechnical Data Management > Geotechnical Tests > Entering Test Data > Soil and Aggregates Tests > Sieve Analysis

This test is used to determine the distribution of particle sizes in soils. The sieve analysis or grain size distribution as determined by sieve and hydrometer tests is normally presented as a curve on a semi-logarithmic plot. The ordinate of the graph is the percentage by weight of grains passing or retained by the size given by the abscissa. Grain size is presented on a logarithmic scale so that soils with the same degree of uniformity have the same distribution curve shape regardless of their positions on the graph.

 

The sieve analysis test represents a major upgrade to the WinSieve program.Existing WinSieve templates and projects can be easily imported into GDMS. After they are imported the WinSieve templates will show up as Geotechnical templates for sieve analysis. These WinSieve templates may require minor editing after they are imported.

 

The data entry and calculations for this test are performed on the Sieve Data form described in the next section. After the data and calculations have been performed the results are displayed in a test report as described in the reporting section below. The format of this report is controlled by the geotechnical template used for the test.

 

The methodology and calculations for this test adhere to "ASTM D 422-63 Standard Test Method for Particle-Size Analysis of Soils". For more detailed information on the methodology and calculations please review this standard.