The effect of alkaline hydrothermal activation of class-C fly ash belite cement was studied using thermal analysis (TG/DTG) by determining the increase in the combined water during a period of hydration of 180 days. The results were compared with those obtained for a belite cement hydrothermally activated in water. The two belite cements were fabricated via the hydrothermal-calcination route of class-C fly ash in 1 M NaOH solution (FABC-2-N) or demineralised water (FABC-2-W). From the results, the effect of the alkaline hydrothermal activation of belite cement (FABC-2-N) was clearly differentiated, mainly at early ages of hydration, for which the increase in the combined water was markedly higher than that of the belite cement that was hydrothermally activated in water. Important direct quantitative correlations were obtained among physicochemical parameters, such as the combined water, the BET surface area, the volume of nano-pores, and macro structural engineering properties such as the compressive mechanical strength.
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机译：通过热分析（TG / DTG），通过确定水合180天期间合并水的增加量，研究了C级粉煤灰贝利特水泥的碱式水热活化效果。将结果与在水中水热活化的贝利特水泥获得的结果进行比较。通过在1 M NaOH溶液（FABC-2-N）或软化水（FABC-2-W）中进行C级粉煤灰的水热煅烧工艺制备了两种贝利特水泥。从结果可以明显看出，碱性水热活化的贝利特水泥（FABC-2-N）的效果明显不同，主要是在水合作用的早期，为此，结合水的增加明显高于贝利特水泥。在水中被水热活化。在物理化学参数之间获得了重要的直接定量相关性，例如组合水，BET表面积，纳米孔的体积以及宏观结构工程特性（例如压缩机械强度）。
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