The object of research in this work is to substantiate the methodology of the secondary use of concrete scrap obtained as a result of the dismantling of the OUAE. In this study secondary application is considered within the framework of additive technologies. Construction using additive technologies is one of the promising areas. This line of research is part of the justification of the method of secondary use of concrete obtained as a result of the dismantling of nuclear energy facilities (OUAE).