Location of Aluminum in Substituted Calcium Silicate Hydrate (C-S-H) Gels as Determined by 29Si and 27Al NMR and EELS期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Location of Aluminum in Substituted Calcium Silicate Hydrate (C-S-H) Gels as Determined by ²⁹Si and ²⁷Al NMR and EELS

Authors:	Ian G Richardson Adrian R Brough Rik Brydson Geoffrey W Groves Christopher M Dobson

Affiliation:	Department of Materials, University of Oxford, Oxford OX1 3PH, United Kingdom;Inorganic Chemistry Laboratory, University of Oxford, Oxford, OX1 3QR, United Kingdom;Department of Materials Science and Engineering, University of Surrey, Guildford, Surrey, GU2 5XH, United Kingdom

Abstract:	Solid-state ²⁷Al and ²⁹Si magic angle spinning NMR spectroscopy has been combined with electron energy loss spectroscopy carried out in the transmission electron microscope to determine the location of Al substituting in a semicrystalline C-S-H gel present in a hydrated synthetic slag glass. The gel is found to contain mainly pentameric silicate chains in which the central silicon is substituted by aluminum.

Keywords: