Precast concrete is a construction product made by pouring concrete into a reusable mold or “mold”, which is then cured in a controlled environment, transported to the construction site and lifted to the site (“tilted”). In contrast, standard concrete is poured into specific molds and cured on the spot. Precast stone differs from precast concrete by the presence of fine aggregates in the mixture, so the final product looks like natural stone or stone. Recently, expanded polystyrene has been used as a basis for prefabricated wall panels. It is lightweight and has better thermal insulation.