Premium
Analysis of a moisture characteristic curve employing a crystalline lattice of capillary pores
Author(s) -
COX M. A. A.
Publication year - 1983
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1983.tb01061.x
Subject(s) - dimensionless quantity , capillary pressure , quadratic equation , moisture , plot (graphics) , mathematics , distribution (mathematics) , suction , capillary action , materials science , mathematical analysis , mechanics , thermodynamics , geometry , porous medium , physics , statistics , porosity , composite material
Summary The conventional method used to investigate the pore structure of a core of wet sand is to construct a moisture characteristic curve. The plot summarizes the dimensionless volume obtained from the sample at a given suction pressure. We assume here that pore diameters are selected from an arbitrary normal distribution. The problem of estimating the parameters of this distribution reduces to the solution of a quadratic equation and substitution of the resulting value into a polynomial. There is no necessity to plot the characteristic curve, the only values being needed are the first two moments of the raw distribution.