Ferone Claudio, Colangelo Francesco, Messina Francesco, Santoro Luciano, Cioffi Raffaele
INSTM Parthenope Research Unit, Department of Engineering, University of Naples Parthenope, Centro Direzionale Is. C4, Naples 80143, Italy.
Department of Chemical Sciences, University of Naples Federico II, Monte Sant'Angelo Complex, Naples 80126, Italy.
Materials (Basel). 2013 Aug 12;6(8):3420-3437. doi: 10.3390/ma6083420.
In this work, three samples of municipal solid waste incinerators fly ash (MSWI-FA) have been stabilized in systems containing coal fly ash to create geopolymers through a polycondensation reaction. Monolithic products have been obtained with both MSWI fly ash as received and after the partial removal of chloride and sulfate by water washing. The polycondensation products have been characterized qualitatively by means of Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy and quantitatively, through the determination of the volume of reacted water and silicate. Furthermore, the heavy metals and chloride releases together with the physico-mechanical properties have been evaluated on the hardened products. In conclusion, considering the technological and environmental performances of the obtained geopolymers, they could be suitable for many non-structural applications, such as backfilling of abandoned quarries, decorative materials or brick fireplaces, hearths, patios,
在这项工作中，三个城市固体废物焚烧炉飞灰（MSWI-FA）样品在含有粉煤灰的体系中得到稳定化处理，通过缩聚反应制备地质聚合物。使用原样的MSWI飞灰以及水洗部分去除氯和硫酸盐后的飞灰，均获得了块状产物。通过傅里叶变换红外光谱、X射线衍射和扫描电子显微镜对缩聚产物进行了定性表征，并通过测定反应水和硅酸盐的体积进行了定量表征。此外，还对硬化产物的重金属和氯释放量以及物理力学性能进行了评估。总之，考虑到所获得地质聚合物的技术和环境性能，它们可能适用于许多非结构应用，如废弃采石场的回填、装饰材料或砖砌壁炉、炉膛、庭院等。
