磷石膏建材防水添加剂研究进展

Research Progress on Waterproof Additive in Phosphogypsum Building Materials

磷石膏是硫酸湿法萃取磷酸时排出的固体废弃物,每生产1 t湿法磷酸约产生5 t磷石膏。如何有效地利用磷石膏,生产建筑材料是人们极力寻求解决的问题,进行磷石膏防水剂的开发利用具有重要意义。本文总结了磷石膏防水剂的研究现状,然后对磷石膏的防水性作用原理进行了详细的介绍,对磷石膏防水添加剂研究进展进行了综述。

Phosphogypsum is discharged when phosphoric acid was extracted by WPA, 5 t phosphogypsum was produced when 1 t wet phosphoric acid was produced. How to effectively use phosphogypsum, product building materials is the problem that people struggle to solve, development and utilization of phosphogypsum waterproofing agent is important. The research status of phosphogypsum waterproofing agent was summarized, the role of the principle of waterproof phosphogypsum was detaily presented, research progress of phosphogypsum waterproof additives was reviewed.