Table 4 Physical parameters of raw materials.
Raw material | Character | Particle size/mesh | Bulk density/(g/cm3) | Purity/% | |
|---|---|---|---|---|---|
Cementing agent | Kaolin | Yellow powder | 150–200 | 2.57 | 84.40 |
Rectorite | Light grey powder | 150–200 | 2.73 | 75.02 | |
Gypsum | Light yellow powder | 150–200 | 2.32 | 99.99 | |
Aggregate | Fine sand | Yellowish particle | > 60 | 1.61 | 99.99 |
Powder sand | White powder | 200–300 | 1.50 | 99.99 | |
Iron sand | Black granule | > 60 | 4.19 | 99.99 | |
