Authors:
Volker Schweikle
Book:
Proceedings of the 14th International Peat Congress
Venue:
Stockholm
Keywords:
density, field-capacity, peat, porosity
Documentfile:
Schweikle 2012: Uncertain Physical Parameters of Peat
Summary:
Theme IV. Chemical, physical and biological characteristics of peat
SUMMARY
Conventional methods to determine density and bulk density of peat do not account for
physical characteristics of plant residues like inherent liquid and gas. Enlarging the density
models by all phasing fractions of plants residues shows that in textbooks reported porosities,
field capacities and out of it derived data are wrong. Even for strongly decomposed peat the
electric charge of the solids are as high that the decision whether the water of the electric
double layer belongs to the solid or to the free water.