A micromechanical investigation for the effects of pore size and its distribution on geopolymer foam concrete under uniaxial compression

This study investigates the influences of pore-structure and mortar properties on the fracture behaviour of geopolymer foamed concrete. The discrete element method (DEM) is utilised to explicitly describe the internal pore-structure, while the mortar phase is modelled at the micro/meso-scale using a cohesive-frictional model. Numerical tests are conducted on numerous DEM foam concrete specimens with various porosities and pore-size...