abstract |
The invention relates to a furnace roller 3 and a roller furnace with such a furnace roller 3. The furnace roller 3 has a hollow-cylindrical roller body 13 with an interior 14. In each end length section 8, 9 of the roller body 13, a plug 15, 16 is arranged. The plug 15, 16 consists of a geopolymer, in particular an alkaline-activated aluminosilicate. |