ArticleScientific reports2022
Reuse of phosphogypsum pretreated with water washing as aggregate for cemented backfill.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 29 citations in OpenAlex.
- Article
- Purification of Synthetic Gypsum: Techniques and Mechanisms.Molecules (Basel, Switzerland) · 2026Review
- Experimental Study on Acoustic Emission Characteristics of Modified Phosphogypsum at Different Loading Rates.Materials (Basel, Switzerland) · 2025Article
- Experimental Study on Influence of Lime on Cross-Scale Characteristics of Cemented Backfill with Multiple Solid Wastes.Materials (Basel, Switzerland) · 2024Article
- Article
- Effects of Pretreated Phosphogypsum and Granulated Blast-Furnace Slag on the Rheological Properties of the Paste Excited by NaOH.Molecules (Basel, Switzerland) · 2023Article
- Using Iron Tailings for Phosphate Removal in Cemented Phosphogypsum (PG) Backfill.Materials (Basel, Switzerland) · 2022Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Phosphogypsum (PG) is reused as aggregate in the cemented backfill, which effectively improves the PG reutilization efficiency. However, the massive impurities contained in aggregate PG would adversely affect the hydration of binder, and therefore deteriorate the strength development of backfill. This research starts with the feasibility study on pretreating PG with the water washing method. Based on the most economical principle of the water demand, the optimal conditions for washing PG were determined at a stirring time of 5 min and a solid-liquid ratio of 1:0.5. Then, the original and pretreated PG were made into the backfill. Compared to using the original PG, the backfill slurry using the pretreated PG had better fluidity performance, such as the lower slurry viscosity and the higher bleeding rate. Furthermore, with the pretreated aggregate PG, the backfill strength was significantly enhanced by more than 8 times. Finally, the environmental behavior of the cemented backfill was investigated. Using the pretreated PG as aggregate, concentrations of PO
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