Valorizing Carbide Slag as Cement-Compatible CaCO3 Suspension via Pretreatment-Controlled Carbonation
Jiahui Zhu, Zanqun Liu, Yu Cui, Haitao Chen, Liping Guo, Geert De Schutter · 2026
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Description
Jiahui Zhu and five co-authors present a 2026 materials study that turns carbide slag, an industrial waste, into a calcium carbonate mix for cement. Such mixes could cut the carbon cost of cement, but poor fit with cement hydration products holds them back. The team used acid washing, wet milling, and a crystal guide in one joined route.
After treatment, two impurity oxides fell by about two thirds, clumping shrank, and wetting improved. At a 15 percent dose, the 28-day strength of the cement rose by 37.9 percent over the untreated mix. Hardness and stiffness at the nano scale also jumped. The authors credit cleaner crystals, better spread, and closer contact with hydration products.
Catalog record
| CREATOR | Jiahui Zhu, Zanqun Liu, Yu Cui, Haitao Chen, Liping Guo, Geert De Schutter |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 51 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |