The aim of the research was to investigate the influences of high alkaline content foundry sand regeneration wastes incorporated with fly ash in the production of geopolymer concrete. The fly ash-based geopolymer concrete was activated using alkaline solutions of sodium silicate and sodium hydroxide. The geopolymeric products were characterized using X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy and simultaneous thermal analysis. A higher compressive strength was observed in mechanical strengths test in the geopolymer and its respective foam concrete made of waste water in comparing to reference water (tap water). Furthermore, a packed arrangement and lower pore size distribution for both geopolymer and foam concrete were observed using nitrogen gas adsorption and mercury intrusion porosimetry, in contrast, to waste water and reference water.

该研究的目的是研究高碱性含量的铸造砂再生废料与粉煤灰的掺入对地聚合物混凝土生产的影响。使用硅酸钠和氢氧化钠的碱性溶液活化了粉煤灰基地聚合物混凝土。使用X射线衍射，扫描电子显微镜，傅立叶变换红外光谱和同时进行热分析来表征地质聚合物。与参考水（自来水）相比，在地聚合物及其由废水制成的泡沫混凝土的机械强度测试中观察到了更高的抗压强度。此外，使用氮气吸附和压汞法测量了地质聚合物和泡沫混凝土的填充排列和较低的孔径分布，