Phosphogypsum Self-Cementing Backfill Material

Simultaneous P and F immobilization

Quicklime-activated phosphogypsum achieves self-cementing with P and F immobilized in situ, providing both strength and environmental safety.

Jiang, Guanzhao · Liangliang, Zhao · Li, Hong · Wu, Shunchuan · Cheng, Haiyong · Sun, Wei · Wu, Aixiang · Chong, Chen

Construction and Building Materials 2024

Specifications

at quicklime content

{'zh': '1', 'en': '>1'} %

Advantages

Self-cementing deteriorates significantly when dissolved phosphorus exceeds threshold

Optimal self-cementing and environmental performance at pH 7.5–8.5