Pneumatic stowing of construction material comprising calcium alpha- and beta-sulphate hemihydrates

摘要

An improved method for pneumatic stowing of calcium alpha-sulphate hemihydrate, calcium beta-sulphate hemihydrate or mixtures thereof using natural anhydrite, limestone or mixtures thereof is disclosed. In addition, construction reinforcement compositions comprising said hemihydrates and natural anhydrite, limestone or mixtures thereof are taught.