The qualitative mineralogical composition of the used ordinary Portland cement (OPC) is given in Fig. 6. The X-ray diffractogram shows that OPC mostly comprises alite, belite, and pentlandite...

2018年7月1日 · In-situ XRD, 1 H NMR and pore water analysis were combined in order to achieve a complete mass balance approach for a commercial OPC. In-situ 1 H NMR was used in order …

2012年1月1日 · Heat flow was calculated from XRD data and compared with measured heat flow from calorimetric experiments. It was shown that the heat released during the hydration of a …

X-ray diffraction (XRD) patterns of Ordinary Portland Cement (OPC) at the submersion ages of 0 and 180 days. [...] In this paper, the pore structure characterization of concrete exposed to...

2024年1月3日 · Here we show a hydration control additive that selectively modifies the hydration kinetics, thereby facilitating enhanced dissolution of aluminates (calcium aluminoferrite and …

2011年4月7日 · OPC and 35% slag pastes are investigated using five techniques: 29Si NMR, 27Al NMR, X-ray diffraction (XRD), infrared (IR) and synchrotron near edge X-ray absorption …

The hydration of ordinary Portland cement (OPC) [1] is related to the mechanical properties and durability of cement/concrete, as well as the performance level...

This report describes XRD and SEM/XMA imaging and analysis procedures for quantitative phase analysis of portland cement. Emphasis is placed on documenting the procedures and best …

2024年11月7日 · To address this challenge, our study employs in-situ X-ray diffraction (XRD) to accurately assess Pb-OPC hydration kinetics in real time. Furthermore, we develop a …

摘要 根据 xrd 数据计算热流，并与从量热实验测得的热流进行比较。 结果表明，市售普通硅酸盐水泥水化过程中释放的热量主要归因于三种机制，即硅酸盐反应（阿利特的溶解和 CSH 相和 …