GGU-SIEVE

Evaluation and presentation of grain size distribution via: -Sieve analysis -Hydrometer analysis -Combined sieve and hydrometer analyses . Capabilities: Variable sieving input (before/after sedimentation, partial mass weights, cumulative weight, in [g] or [%]) Define and save individual sieve sets Input and save various hydrometers with their constants Output of test results as graphics of percentages of grain fractions and as laboratory logs Determine soil types to DIN 4022, ISO 14688-1, SEP or ASTM Compute uniformity coefficients U and coefficients of curvature Cc Determine the hydraulic conductivity to Hazen, Beyer, Mallet/Pacquant or Seelheim, including the respective validity rules Determine the grain index Determine the soil group and frost resistance to German standards (DIN), Swiss standard SN 670 008a or USC (ASTM 2487) Take the coefficient of plasticity and the liquid limit into consideration for fine-grained soils Visualise Therzaghi and/or USBR filter criteria Estimate friction angle after Lang/Huder Determine any number of passage values (e.g. grain sizes at d10, d30, d50, d60) Mix grading curves using variable constituents of existing grading curves Separate 2 grading curves to compute suffosion Calculate filter stability to Cistin/Ziems via export to GGU-FILTER-STABILITY application Determine grading curves using user-definable smoothing out procedures Variable grading curve visualisation (user-definable line types and colours) Graphics for up to 630 mm grain size diameter (> 200 mm = blocks) Visualise grain size envelopes or boundary ranges via Extra GSDs (grain size distributions) Cumulate up to 50 existing grading curves via Extra GSDs Design your own graphics and log pages Print or copy screen sections, e.g. for transfer to a word processor Integrated Mini-CAD system for additional annotation of graphics