Open AccessParameters of strength and deformability of ash and slag mixture of Ekibastuz coals
Author(s) -
Gennadiy Dolgih,
V. F. Ignatov,
Victor A. Utkin
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/687/4/044037
Subject(s) - compaction , slag (welding) , materials science , geotechnical engineering , bottom ash , deformation (meteorology) , shear strength (soil) , fly ash , compressive strength , composite material , metallurgy , geology , soil science , soil water
The article assesses the possibility of using ash and slag mixture for the construction of a road bed. To this end, the traditional and modern methods of calculation of road surfaces are analyzed, which allow establishing the parameters of strength and deformability that require experimental determination. Experimental determination of strength and deformability parameters is performed by laboratory tests. For the implementation of tests the authors make samples of ash and slag mixture of different density. During the experiments, the metal stamp is pressed into the model and the experimental dependences of the sediment on the pressure are determined. This makes it possible to calculate the California Bearing Ratio, the deformation modulus, and to establish the pressures at which the mixture of ash and slag operates under compaction or shear conditions. Mathematical models are developed to calculate the parameters of strength and deformability from the value of pressure.