武汉工程大学学报2011，Vol.33Issue(8)：86-89,94,5.DOI:10.3969/j.issn.1674-2869.2011.08.021
交互作用下磷石膏砌块的最佳配比的研究
Characterization of phosphogypsum-bricks and its optimumly interactive component
摘要
Abstract
Phosphogypsum (PG), an industrial by-production, is generated from the production of phosphoric acid by the wet process, and currently, stored in stockpiles in large quantities without any treatment. The storage of PG, containing heavy metals and presenting a low radioactivity, obviously will cause severe contamination with the time passing. A number of studies had been conducted on the feasibility of PG used for building blocks, this paper presents another method to achieve the optimum formulation of this binder, which consisted of 47% PG, 15% calcined lime,30% fly ash and 8% water. The results obtained by the calculation of exteeme vertex design demonstrate that the bricks successfully satisfied the standard requirements for mechanical testing. The analysis of scanning electron microscopy (SEM) and quantitative X-ray diffraction (XRD) shows that ettringite and calcium sulfate hydrate (C-S-H), form a dense network structure with the fly ash, and was found in the fly ash calcined lime cements pastes,and that might be the main cause to early strength of mortars.关键词
磷石膏/极端顶点设计/抗折强度/耐水性Key words
phosphogypsum/ the calculation of exteeme vertex design/ flexural strength/ water resistance分类
资源环境引用本文复制引用
王培雄,宾晓蓓,杨欢,王胜军,薛俊,陈家藏,曹宏..交互作用下磷石膏砌块的最佳配比的研究[J].武汉工程大学学报,2011,33(8):86-89,94,5.基金项目
国家科技支撑计划项目(2008BAE60B08) （2008BAE60B08）
