The content of unburned carbon is an important characteristic of bottom ash which could make it
unsuitable for incorporation as aggregate for road construction. In this work, the effect of the content
of unburned carbon in the bottom ash from the Serbian power plant “Nicola Tesla” on its applicability
for road construction was examined. Four samples with different contents of unburned carbon, i.e.,
raw bottom ash, two size fractions obtained from it (2–5 and