A comprehensive study of basalt fiber reinforced magnesium phosphate cement incorporating ultrafine fly ash
A comprehensive study of basalt fiber reinforced magnesium phosphate cement incorporating ultrafine fly ash
复制标题
玄武岩纤维增强超细粉煤灰磷酸镁水泥的综合研究
DOI：
10.1016/j.compositesb.2018.12.065
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发表时间：
2019-07-01
影响因子：
13.1
通讯作者：
Yu, Jiang
中科院分区：
文献类型：
--
作者：
Ahmad, Muhammad Riaz;Chen, Bing;Yu, Jiang
采用X射线衍射（XRD）、热重分析（TGA）、压汞仪（MIP）和扫描电子显微镜能谱（SEM/SEM-EDS）等分析技术，研究了超细粉煤灰（FA）对玄武岩纤维增强磷酸镁水泥力学性能、耐高温性能和水稳定性的影响，并探讨了其协同作用机理。实验结果表明，FA的加入提高了MPC复合材料的力学性能、耐温性能和水稳定性。TGA结果表明，随着FA含量的增加，MPC复合材料的质量损失逐渐减小。MIP分析结果表明，FA的加入降低了材料的累积孔容、大孔体积百分比和平均孔径。XRD和SEM-EDS分析表明，复合材料中存在二次反应产物，这可能是导致复合材料具有上级性能的主要原因。重要的是，所有表征技术的结果证实了MPC复合材料的机械结果。
This study investigated the influence of ultrafine fly ash (FA) on the mechanical properties, elevated temperature resistance and water stability of basalt fiber reinforced magnesium phosphate cement, and synergy mechanism was examined with the help of X-ray diffraction (XRD), thermogravimetric analysis (TGA), mercury intrusion porosimeter (MIP) and scanning electron microscopy energy dispersive spectroscopy (SEM/SEM-EDS) analysis techniques. Experimental results showed that incorporation of FA improved the mechanical properties, temperature resistance and water stability of MPC composites. TGA results exhibited that the mass loss of MPC composites was gradually reduced by increasing the percentage of FA. MIP analysis showed that cumulative pore volume, volume percentage of large pores and mean pore diameter of were decreased with the addition of FA. XRD and SEM-EDS analysis of MPC composites revealed the formation of secondary reaction products, that could be possibly responsible for the superior properties of FA/MPC composites. Importantly, the results of all characterization techniques corroborated with the mechanical results of MPC composites.