3.1.1. Physical Properties

All the pellets presented a cylindrical shape with around 8 mm of diameter and 10 mm length. Samples produced at 6 and 7 tons showed the best performances and were reproduced to obtain a representative amount for their further characterization. Table 2 presents the averaged values of diameter, length, and density of all the repeated samples.

**Table 2.** Averaged results of physical properties of RS pellets produced at lab conditions.

