Try Gradistat

http://www.kpal.co.uk/gradistat.html

Pretty commonly used in the UK

I've always had good luck with gINT

https://www.bentley.com/en/products/brands/gint

I always depend on https://www.retsch.com/products/sieving/evaluation-software/function-features/

3D sieving machines

You can also use the package 'G2SD' R-CRAN

https://cran.r-project.org/web/packages/G2Sd/index.html

https://cran.r-project.org/web/packages/G2Sd/G2Sd.pdf

or this interface : https://regisgallon.wordpress.com/r-software/g2sd-r-interface/

and this reference : https://journals.openedition.org/geomorphologie/10513

Fournier J., Gallon R.K., Paris R. 2014. G2Sd: a new R package for the statistical analysis of unconsolidated sediments. Géomorphologie, relief, processus, environnement, 20(1), 73-78.

Kind regards

Jérôme

Take a look at:

https://www.en.bakhtisoftware.com/Civil-engineering-laboratory-software.html