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1. A lightweight, precast, concrete building material invented in the mid-1920s that simultaneously provides structure, insulation, and fire- and mould-resistance.
   "Better thermal efficiency of AAC makes it suitable for use in areas with extreme temperature as it eliminates need for separate materials for construction and insulation leading to faster construction and savings.";
   - autoclaved concrete, autoclaved aerated concrete, porous concrete, autoclaved lightweight concrete, autoclaved cellular concrete

Type of: concrete

Encyclopedia: AAC, El Salvador