AAC (Autoclaved Aerated Concrete) has relatively high thermal conductivity. In order to im-prove this property, mineral hydrate insulation has been developed. This material holds fine and uniform pores and is much more lightweight in comparison to AAC. It has the same workability, flame retardancy with AAC and improved thermal performance (0.040 ~ 0.050 W/mK). The fabrication method of mineral hy-drate is similar to that of AAC, however making normal slurry with a considerable amount of foaming agent is difficult due to material segregation and collapse of slurry. In this study, the mixing ratio of raw materials meeting the required insulation performance has been investigated. Physical characteristics of mineral hydrate insulation were analyzed.

Keywords: Autoclaved aerated concrete, High thermal conductivity, Mineral hydrate insulation, Lightweight.