Densities of hemp shiv for building: From multiscale characterisation to application

This paper concerns the packing of plant particles (hemp shiv) used for building applications and aims to quantify skeletal, particle densities associated porosities. These parameters were measured on hemp as a case study assess physical behaviour this material in terms water adsorption absorption, mechanical compression thermal acoustic behaviours. A number experimental methods have been characterise these including fluid powder pycnometry, mercury intrusion X-ray computed tomography, leading robust complementary results function size level aging by immersion water. It was concluded that smaller are characterised higher densities, while aged present strong evolution their microstructure, which is visible through lower skeletal density. By comparing with property characterisations, correlations found between absorption open porosity, three density scales, dissipation intra- inter-particle