This document provides properties and values for autoclaved aerated concrete (AAC) blocks including a density between 551-650 kg/cum, a compressive strength of at least 30 kg/cm2, a thermal conductivity of 0.162 W/mK, resistance to fire for 2-6 hours depending on thickness, drying shrinkage of 0.1%, and a design gross density of 850 kg/cum. It also lists relevant BIS standards and notes AAC blocks have good workability.