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Specific volumetric heat capacity of soil material

The specific volumetric heat capacity of soil is used to calculate the thermal diffusivity and the thermal capacity of soil.

The values were taken from engineeringtoolbox.com

The equation is taken from the paper 'Estimation of soil thermal parameters from surface temperature of underground cables and prediction of cable rating (Li2005)' by H.J. Li, 2005.

Symbol
$c_{p,soil}$
Unit
J/(kg.K)
Formulae
${10}^{-4}\frac{{k_4}^{0.2}}{4.68}$
Related
$k_4$
Thermal conductivity of soil [W/(m.K)]
Used in
$C_{v,soil}$
Heat capacity of a unit volume of soil [J/(K.m$^3$)]
$\delta_{soil}$
Soil thermal diffusivity [m$^2$/s]
Choices
Material
 		Heat capacity
J/kg.K
Asphalt920
Basalt840
Brick, common900
Clay, sandy1381
Concrete960
Granite790
Limestone909
Sand900
Sand, quartz930
Soil, dry800
Soil, wet1480
Soot840
Wet mud2512