Application of vitrified microspheres in lightweight gypsum mortar

Glass beads are used as lightweight aggregates for gypsum mortar, with a particle size of 0.05~0.60mm, a bulk density of 132kg/m3, a volume water absorption rate of 39%, and a cylinder compressive strength of 159kpa. The application of vitrified microspheres in self-leveling gypsum can reduce the amount of fine sand, reduce the density of mortar,…