EFFECTS OF VIBRATION FREQUENCY AND TIME DURING MANUFACTURING, AS WELL AS WATER-CEMENT RATIO ON AGGREGATE DISTRIBUTION WITHIN THE CROSS-SECTION OF MORTAR MIXED WITH ELECTRIC ARC FURNACE OXIDIZING SLAG AND EXPANDED POLYSTYRENE BEADS

Mortar mixed with expanded polystyrene beads and electric arc furnace oxidizing slag (“beads slag mortar”) can be used as a broadband electromagnetic wave absorber by applying vibration before curing. In this study, the effects of vibration frequency and time during manufacturing, as well as water-cement ratio on aggregate distribution within the cross-section of beads slag mortar were investigated. It was found that the higher the vibration frequency, the shorter the vibration time and the lower the water-cement ratio required to achieve the aggregate distribution that results in a broadband electromagnetic wave absorber.