Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Properties of tested soils
| Parameter | Standard | Soil_1 | Soil_2 |
|---|---|---|---|
| Plastic limit [%] | PN-88/B-04481 | 19 | 29 [11] |
| Liquid limit [%] | PN-88/B-04481 | 28 | 66 [11] |
| Plasticity index [%] | PN-88/B-04481 | 9 | 37 [11] |
| Optimum water content [%] | PN-EN 13286-2 Proctor test method A | 14 [10] | 21 [11] |
| Maximum bulk density [g/cm3] | PN-EN 13286-2 Proctor test method A | 1.85 [10] | 1.63 [11] |
| Loss on ignition [%] | PN-88 B-04481:1988 | 1.9 [10] | 4.8 [11] |
| Specific density [g/cm3] | PN-88 B-04481:1988 | 2.6 [10] | 2.7 [11] |
| pH | ASTM-D 4972-01 1998 | 6.2 | 7.5 |
Oxide composition of fly ash from Bełchatów power plant tested with XRF according to ISO 29851-2:2010
| Component | The content after conversion into the initial state [% mass (% m/m)] | |
|---|---|---|
| fly ash | cement kiln dust | |
| SiO2 | 42.56 | 18.29 |
| Al2O3 | 18.81 | 4.57 |
| Fe2O3 | 4.51 | 2.16 |
| CaO including free CaO | 24.14 2.06 | 64.19 21.39 |
| MgO | 1.40 | 1.32 |
| Na2O | 0.22 | 0.48 |
| K2O | 0.21 | 0.99 |
| SO3 | 2.74 | 3.03 |
| TiO2 | 1.32 | 0.23 |
| P2O5 | 0.13 | 0.12 |
| ZnO | 0.02 | 0.23 |
| residue | 0.27 | 4.16 |