中文摘要：

为了透彻了解赤泥一煤矸石基胶凝材料水化过程中所发生的物理化学变化，采用x射线光电子能谱技术（XPS）对赤泥一煤矸石基胶凝材料水化过程中ca、si、A1、0、Na等主要元素化学键能的变化进行了深入、系统的分析。结果表明：水化3d至90d的赤泥一煤矸石基胶凝材料水化产物中ca、si、A1、Na、O等主要元素的结合能均随着水化龄期的延长逐渐升高；Nals结合能的升高说明赤泥一煤矸石基胶凝材料在水化过程中对Na’具有一定程度的固化作用；随着c—A—S—H凝胶钙硅原子比的升高，Si2p结合能将降低，二者呈较好的线性负相关性；基于水化产物的Ols结合能与相对桥氧数（RBO值）之间具有良好的线性正相关性，因此可用水化产物Ols结合能来评价胶凝产物中[SiO。]四面体的聚合度。

英文摘要：

In order to fully understand the physical and chemical changes during the hydration process of red mud-coal gangue based cementitious materials, X-ray photoelectron spectroscopy （XPS） technique was used to investigate the binding en- ergy among Ca, Si, A1, O and Na elements of the hydration products of red mud-coal gangue based cementitious materials. The results showed that with the increasing of hydration period from 3 to 90 days, the binding energies among Ca, Si, A1, O and Na elements of the hydration products gradually increased. Especially, the increasing of Nals binding energy represents that the red mud-coal gangue based cementitious materials can solidify Na ＋ during the hydration process. Si2p binding energy decrea- ses with the increasing of Ca/Si atom ratio of C-A-S-H gel, and negative linear correlation occurs between them. As O1 s bind- ing energy of the hydration products has positive linear correlation with the relative number of bringing oxygen（RBO）. There- fore, O1 s binding energy can be used to evaluate the polymerization degree of [ SiO4 ] tetrahedron from hydration products.