Use of marble sludge waste in the manufacture of eco ...
The suitability of a marble sludge generated in the ornamental rock industry of Andalusia (Spain) has been assessed as raw material in ceramic bricks. Mixtures containing a clayey base and 0, 2.5, 5, 7.5, and 10 wt% of marble powder have been shaped into 60 × 30 × 10-mm 3 prismatic specimens and sintered at 950 °C in a muffle. The main ...