The production of binderless granules and their mechanical characteristics

Influence of Moisture Content on the Compression Behavior of Granules

“…Mainly binderless granules consisting of primary particles were produced and wetted using water or an aqueous solution [9][10][11][12]. In these investigations, the acting adhesion force between the primary particles of the dry granules is the van der Waals force and thus no solid bridge bonds exist.…”

Multiple Compression of Moist Spherical Elastic‐Plastic Zeolite 4A Granules

“…Although there were numerous experimental studies on compression tests, the development and propagation of the stress field within a particle had not been comprehensively studied until Chau et al [8] proposed a mechanical model to analyze the stress field in elastic isotropic spheres at uniaxial compression. The experimental study performed by Cheong et al [9] on the energy dissipation mechanism of binderless granules suggested that the surface chemistry of primary particles largely influences the macroscopic response of a granule at compression. Salman and Gorham [10] studied the fracture characteristics of glass spheres at uniaxial compression, providing vital insights on cracking patterns and fragmentation.…”

Influence of snow cover properties on avalanche dynamics

“…Those granules were only destroyed if they were dropped from 1-2 m on the concrete floor. In those cases they showed a semi-brittle behavior [Cheong et al, 2005], i.e. the fracture is preceded by limited plastic deformation.…”

“…These have been measured either by direct tensile tests or uniaxial compression tests where the granule or compact is assumed to fail due to tensile stress. Also the mechanical response of agglomerates at high and low strain rates [Cheong et al, 2005] has not been investigated yet. Schubert [1977] has described the different methods available to measure the strength of moist agglomerates.…”