In this monograph, the scientific and practical work on polystyrene concrete, the raw materials used for the production of polystyrene concrete and their properties were studied. Thermal-physical and physico-chemical properties of polystyrene concrete were studied using research methods. Expanded polystyrene granules produced by "Penoplast" LLC in Tashkent were used as the main raw material for the production of polystyrene concrete.The obtained results are based on many years of theoretical and experimental research of the authorsThe monograph is intended for students and masters studying at a construction institute, and it can be useful for engineering and technical staff of construction and project organizations conducting construction work in dry and hot climates, as well as for researchers conducting scientific research in this field.