Hydration behavior and strength development of supersulfated cement prepared by calcined phosphogypsum and slaked lime

Y Liao, J Yao, F Deng, H Li, K Wang, S Tang - Journal of Building …, 2023 - Elsevier
The effect of the content of calcined phosphogypsum (CPG) and slaked lime (SL) on the
fluidity, setting time, and compressive strength of supersulfated cement (SSC) were …

Reuse of phosphogypsum as hemihydrate gypsum: The negative effect and content control of H3PO4

R Jia, Q Wang, T Luo - Resources, Conservation and Recycling, 2021 - Elsevier
Phosphogypsum can replace natural gypsum to produce hemihydrate gypsum. In order to
effectively reutilize phosphogypsum, the influence mechanism of the impurities in …

Efficient precipitation of soluble phosphorus impurities in the recycling of phosphogypsum to produce hemihydrate gypsum

W Zhang, L Zhao, M Xue, X Duan, C Feng… - Journal of Cleaner …, 2023 - Elsevier
Phosphogypsum (PG), a waste product of the phosphate fertilizer industry, is a source of
environmental pollution. PG can be calcined to form the hemihydrate gypsum (β-CaSO 4• …

A novel approach for improving the water resistance of gypsum plaster by internal mixing hypromellose and external coating waterproofing agent

L Wang, M Cao, X Li, W Du, X Wang - Construction and Building Materials, 2023 - Elsevier
The utilization of gypsum plaster in humid environments is strictly limited by the poor
waterproof performance and strong water absorption. To solve this problem, the self …

Hydration characteristics and mechanism analysis of β-calcium sulfate hemihydrate

X Chen, Q Wu, J Gao, Y Tang - Construction and Building Materials, 2021 - Elsevier
Although the dissolution/precipitation mechanism for hemihydrate hydration is widely
recognized, this study gives more detailed information for the hydration of hemihydrate by in …

Effect of graphene oxide on hydration and performance of phosphogypsum-based self-leveling materials used for floor heating backfill

Y Zhou, C Liu, J Gao, X Chen, X Luo, G Zhang… - … and Building Materials, 2024 - Elsevier
Gypsum-based self-leveling materials (GSLMs) are widely used in floor heating backfill
systems because of their advantages of fast setting and hardening, non-shrinkage and non …

Upcycling of phosphogypsum as anhydrite plaster: The positive effect of soluble phosphorus impurities

W Cao, W Yi, J Peng, S Yin - Construction and Building Materials, 2023 - Elsevier
The utilization of phosphogypsum (PG) to prepare anhydrite could massively consume its
stockpiling and obtain stable and excellent gypsum materials. In order to effectively recycle …

Effect of soluble fluorine on the hydration, strength and microstructure of hemihydrate phosphogypsum

W Cao, W Yi, J Peng, J Li, S Yin - Journal of Environmental Chemical …, 2024 - Elsevier
Preparing β-hemihydrate phosphogyspym (HPG) from phosphogypsum (PG) is a promising
and effective method to utilize PG massively. However, the influence mechanism behind the …

The rheological behavior of paste prepared from hemihydrate phosphogypsum and tailing

G Jiang, A Wu, Y Wang, J Li - Construction and Building Materials, 2019 - Elsevier
The paste prepared from hemihydrate phosphogypsum (HPG) and tailing (HTP) differs
greatly from the cement tailings paste (CTP). The rheological behavior of HTP including the …

Effect of polysaccharides on setting and rheological behavior of gypsum-based materials

C Liu, J Gao, X Chen, Y Zhao - Construction and Building Materials, 2021 - Elsevier
In this study, the effect of two polysaccharides including hydroxypropyl starch (HPS) and
hydroxypropyl methyl cellulose (HPMC) on setting and rheological behavior of gypsum …