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Evaluation of the Nanostructure of Calcium Silicate Hydrate Based on Atomic Force Microscopy-infrared Spectroscopy Experiments by Zheyu Zhu; Zhongping Wang; Yue Zhou; Yuting Chen; Long Zhou; Anming She is a Engineering article available to read on EtoBox.
What is Evaluation of the Nanostructure of Calcium Silicate Hydrate Based on Atomic Force Microscopy-infrared Spectroscopy Experiments about?
Calcium silicate hydrate (C-S-H) is the main product of cement hydration, which forms the microstructure of cement via the stacking of basic nanocrystals or gel units, and has a substantial influence on the mechanical performance of cement. Tetrahedron chains of silicon oxide form the main nanoscale structure of basic C-S-H units. Evaluation on the nanostructure of these tetrahedron chains facilitates to understand the source of cement strength. This article first introduced the atomic force microscopy-infrared spectroscopy (AFM-IR) technique into evaluating the nanostructure of C-S-H. The nano infrared spectroscopy of stacking C-S-H nanograins and tetrahedron spatial distribution mapping was obtained. The results demonstrate that the relative quantity of tobermorite-like and jennite-like units in C-S-H nanograins can be analyzed by AFM-IR. The stacking between C-S-H particles is facilitated to a large extent by silicate ( -SiO 4 2 ) tetrahedron chains formed of three tetrahedrons bridged by two oxygen atoms (i.e., Q 2 chains), and there are Q 2 chains acting as bridges between C-S-H particles. The proportions of different types of Q 2 chains available for facilitating C-S-H partic
Who reads Evaluation of the Nanostructure of Calcium Silicate Hydrate Based on Atomic Force Microscopy-infrared Spectroscopy Experiments?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Zheyu Zhu; Zhongping Wang; Yue Zhou; Yuting Chen; Long Zhou; Anming She
- Publisher
- Walter de Gruyter GmbH
- Published
- 2021
- Language
- EN
- Field
- Engineering (Physical Sciences)