The article presents comparative evaluation of autoclaved aerated concrete products modified additives in the shape of waste plastic material and natural discards of post-production using multicriteria analysis. To modify was used pulverized regrind high-impact polystyrene and meal chalcedonite produced as a waste product in the mine chalcedonite. Based on the analysis carried out, the most preferred material for the modification of autoclaved aerated concrete is a high impact polystyrene additive. The material used for the modification is a waste product that improves the physico-mechanical properties of the product to be tested. This material resulted in an increase in compressive strength by 40% and a reduction in the water absorption coefficient by 37% compared to traditional traction.