RT journal article
T1 Phosphogypsum leachate cleaning waste as partial cement replacement in mortars
A1 Soto Cruz, Francisco Javier
A1 Rosales, Julia
A1 Bolívar Raya, Juan Pedro
A1 Ramos Lerate, Inmaculada Concepción
A1 Agrela, Francisco
A1 Gázquez González, Manuel Jesús
A2 Física Aplicada
K1 Phosphogypsum leachate treatment
K1 Cement mortars
K1 Leaching test
K1 Technical properties
K1 Heavy metals immobilisation
AB This study presents the first valorisation of a waste generated from the cleaning process of phosphogypsum leachate. Leachate decontamination waste (LDW), which contains non-negligible concentrations of heavy metals, radionuclides and fluorine, was used as a partial cement replacement in mortars at varying proportions. New cements and mortars were produced from mixtures of a commercial Portland cement (CEM I 52.5) with different concentrations of this waste (2.5, 5, 7.5, 10, 25 and 35 wt.%).The physical-chemical properties, mechanical behaviour, and environmental impact of these LDW-cement mortars were evaluated. The results revealed that incorporating LDW at levels of up to 10% not only maintained but even enhanced the mechanical properties compared to the reference mortar. Furthermore, the cement matrix effectively immobilized potential contaminants in all cases, contributing to environmental safety.
PB Elsevier
SN 2590-1230
YR 2025
FD 2025-12
LK http://hdl.handle.net/10498/37850
UL http://hdl.handle.net/10498/37850
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-nov-2026