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State of soil density influenced by particle size distribution
Density state is closely related to the packing structure of granular soil, which has significant influence to the material properties such as volume change tendency, the fluid conductivity and the shear strength. The structure of a random packing depends highly on the particle size distribution. Thus, the effect of particle size distribution on packing structure and density is an important subject to study. Based on the concept of dominant particle network, we aim to develop a mathematical model that can predict the density state for soils with a wide range of particle size. The evaluation of the model will be performed on mixtures of round and crushed aggregates, and soils containing gravelly sand with silt.Author(s):
Ching Chang
University of Massachusetts at Amherst
United States