BOTTOM-ASH MIXTURE DEFORMATION PARAMETERS OBTAINED IN LABORATORY AND NATURAL CONDITIONS

Abstract

In engineering geology and soil mechanics, there are dependencies that allow one to transfer from deformation parameters obtained in the laboratory conditions to that obtained in natural conditions and between parameters obtained during laboratory tests using different methods. These dependencies greatly simplify and facilitate research into the field. However, for bottom-ash mixtures, considered as man-made soil for the embankment construction, the construction of such dependencies has not been previously performed. The aim of this work is to obtain these dependencies and determine the modulus of deformation under triaxial compression, the elastic moduli determined in laboratory conditions on a lever press and experimental tray. The dependencies are also obtained using the plate test method on the experimental embankment and the California bearing ratio in a wide range of density and humidity.It is found that the transfer equations derived earlier for deformation parameters are not suitable for the bottom-ash mixes. Mathematical dependencies are then derived for the deformation parameters of these mixes in different conditions.TheOriginalityandpractical implicationsof this work is the derivation of new dependencies based on experimental data allowing to obtain desired values of these parameters for bottom-ash embankments with higher accuracy than achieved by other authors using mathematical calculations.