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| Reference | Solidified agents | Soil type | Durability type | Cured days and one cycle condition | Results of strength |
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| Hu [12] | Inorganic cementitious materials (20%) | Sewage sludge | Freeze-thaw | 28 days, −20°C (24 h) + 20°C (24 h) | Decrease from 100 kPa (before cycle) to 50 kPa (6th) then keep constant |
| Dry-wet | — | Increase from 200 kPa (before cycle) to 400 kPa (1st) and decrease to 300 kPa (7th) then destroyed |
|
| Hu [12] | Inorganic cementitious materials (20%) + waste incineration bottom ash | Sewage sludge | Dry-wet | — | Increase from 250 kPa (before cycle) to 600 kPa (1st) and decrease to 400 kPa (4th) and then destroyed |
|
| Li [10] | Conditioned with fly ash + lime + ferric chloride and then dewatered | Sewage sludge | Freeze-thaw | 28 days, −20°C (5 h) + 10∼20°C (3 h) | Decrease slightly and strength loss ratio is about 15% (12th) |
| Dry-wet | 28 days, 60°C (24 h) + immerse at 20°C (24 h) | Decrease slightly and strength loss ratio is about 10% (12th) |
|
| Li [8] | Bentonite (10∼20%) + cement (20∼60%) | Sewage sludge | Dry-wet | 28 days, 60°C (24 h) + immerse at 20°C (24 h) | Increase after 12 cycles, the higher the cement content, the more the difference |
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| Yang et al. [13] | Soil + quicklime (20%) + curing agent (10%) | Sewage sludge | Dry-wet | 28 days, 35°C (12 h) + adsorb water through porous stone + 20°C (24 h) | Decrease rapidly (≤5 cycles) and then tend to be stable |
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| Wang et al. [22] | MgO (7%) + fly ash (3%) | Dredge sludge | Freeze-thaw | 28 days, −20°C (24 h) + 20°C (24 h) | Increase from 900 kPa (before cycle) to 1910 kPa (16th) and then decrease to 1400 kPa (20th) |
| Dry-wet | 28 days, 40°C (24 h) + immerse at room temperature (24 h) | Increase from 900 kPa (before cycle) to 2320 kPa (8th) and then decrease to 1700 kPa (20th) |
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| Liu et al. [23] | Cement (100, 150, and 200 kg/m3) | Dredge sludge | Dry-wet | 28 days, 60°C (8 h) + vacuum saturation at 20°C (16 h) | Decrease after cycle for 100 kg/m3 and increase for 150 and 200 kg/m3 |
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| Wang et al. [24] | Cement (5, 10, and 15%) | Lead-polluted soil | Freeze-thaw | 28 days, −15°C (3 h) + 20 ± 1°C (3 h) | Increase when the cycles increase from 1 to 3 and then decrease |
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| Hou et al. [25] | Sodium silicate (3%) | Loess | Freeze-thaw | 7 days, −15°C (12 h) + 15°C (12 h) | Decrease from 3935 kPa (before cycle) to 577 kPa (20th) |
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