Pset_LabTestResult Properties resulting from commonly conducted laboratory tests on soil, rock or fluid specimens. IfcGeoScienceObservation/LABTESTRESULT IfcGeoScienceObservation/LABTESTRESULT TestedMaterial Description of the tested material, e.g. according to existing rock and soil classification systems. UnconfinedCompressiveStrength The unconfined compressive strength (UCS) is the maximum axial compressive stress that a right-cylindrical sample of material can withstand under unconfined conditions. YoungModulus Elastic modulus, mean value, α=0°. MassDensity Material mass density. Mass Density WaterContent The ratio of weight of water Ww to the weight of solids (Ws or Wd) in a given mass of soil or rock. Porosity The volumetric fraction of pores in the material. CohesionBehaviour Cohesive shear strength of a rock or soil that is independent of interparticle friction. FrictionAngle Derived from the Mohr-Coulomb failure criterion and used to describe the friction shear resistance of ground materials, together with the normal effective stress. LiquidLimits The water content in percent where the soil starts to behave as a liquid. > NOTE  Definition according to ISO17892. PlasticLimit The water content in percent where the soil starts to behave as a semi-solid state. > NOTE  Definition according to ISO17892. PlasticityIndex The plasticity index Ip is the numerical difference between the liquid limit and plastic limit of a fine soil. IP = wL - wP. Slaking The crumbling and disintegration of rock or hard soil upon exposure to air or water. HydraulicConductivity Hydraulic Conductivity (permeability) of soil for water, given with the K or Kf value in m/s.