Influence of Polycarboxylate Superplasticizer on Rheological Behavior and Early Interfacial Evolution of Phosphogypsum-Based Supersulfated Cement.

Dafu Wang, Lehuan Kuang, Shaoyang Ding, Yudong Sun, Yuejing Li, Ziyu Chen, Jun Ren, Xincheng Li

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Article in Polymers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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8 authors.

Dafu WangSchool of Architecture and Planning, Yunnan University, Kunming 650050, China.

Lehuan KuangSchool of Architecture and Planning, Yunnan University, Kunming 650050, China.

Shaoyang DingSchool of Architecture and Planning, Yunnan University, Kunming 650050, China.

Yudong SunSchool of Architecture and Planning, Yunnan University, Kunming 650050, China.

Yuejing LiSchool of Architecture and Planning, Yunnan University, Kunming 650050, China.

Ziyu ChenSchool of Architecture and Planning, Yunnan University, Kunming 650050, China.

Jun RenSchool of Architecture and Planning, Yunnan University, Kunming 650050, China.ORCID 0000-0002-9605-4542

Xincheng LiYunnan Institute of Building Research, Kunming 650223, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Driven by global carbon reduction targets, supersulfated cement has emerged as a promising low-carbon cementitious material. This study investigates the influence of a polycarboxylate superplasticizer (PCE) on the rheological behavior and early interfacial evolution of phosphogypsum-based supersulfated cement (PSSC). Rheological measurements, pore solution ion analysis, hydration heat analysis, X-ray diffraction (XRD), and scanning electron microscopy coupled with energy-dispersive spectroscopy (SEM-EDS) are employed to correlate early hydration processes with structural development. The results indicate that the incorporation of PCE significantly reduces the initial yield stress and moderates the structural build-up rate. At a PCE dosage of 0.3 wt.%, the initial static yield stress decreases from 1313 Pa to approximately 125 Pa, while the structural build-up index

Indexed as

early interfacial evolutionphosphogypsumpolycarboxylate superplasticizerrheological propertiesstructural build-upsupersulfated cement

Identifiers

PMID42122649

DOI10.3390/polym18091021

PMCPMC13165242

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