Abstract The knowledge of sustainable development believes that natural resources should be treated limited. and waste must be managed rationally. This idea and the constant striving to reduce production costs make the use of waste materials potential substitutes for traditionally used raw materials. In cement concrete technology. https://comneb89p5ya.timeblog.net/70688001/automobilový-průmysl-v-evropské-unii-a-jeho-konkurenceschopnost-ve-světě