Open AccessElastic and Deformation Characteristics of MSWI Bottom Ash for Road Construction
Author(s) -
V. T. Phan,
Thanh Trung Nguyên
Publication year - 2020
Publication title -
engineering, technology and applied science research/engineering, technology and applied science research
Language(s) - English
Resource type - Journals
eISSN - 2241-4487
pISSN - 1792-8036
DOI - 10.48084/etasr.3817
Subject(s) - bottom ash , deformation (meteorology) , modulus , incineration , poisson's ratio , geotechnical engineering , fly ash , materials science , work (physics) , triaxial shear test , elastic modulus , road construction , young's modulus , geology , composite material , poisson distribution , engineering , waste management , civil engineering , mechanical engineering , mathematics , statistics , shear (geology)
Bottom ash from Municipal Solid Waste Incineration (MSWI) is a typical granular material resulting from the incineration of domestic waste. It is mainly used in road engineering substituting traditional natural aggregates. As the characterization of the mechanical behavior is essential, the work presented in this paper pursues the study of the elastic and deformation characteristics of bottom ash, in particular Young’s modulus and Poisson’s ratio. From the consolidated-drained triaxial test data, it was possible to extract fundamental material parameters about the samples, including their Young’s modulus E0.2 and E50, its Poisson’s ratio ν, and its maximum deviatoric stress peak. These parameters were then used in computer models to predict how the bottom ash will behave in a larger-scale engineering application. Furthermore, the mechanical behavior of bottom ash related to road construction’s loading condition, especially the secant modulus, was detailed.