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Investigations of Calcium Silicate Hydrate Structure Using Silicon‐29 Nuclear Magnetic Resonance Spectroscopy
Author(s) -
Francis Young J.
Publication year - 1988
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1988.tb05028.x
Subject(s) - alite , silicate , calcium silicate hydrate , orthosilicate , calcium silicate , silicon , hydrate , chemical engineering , amorphous solid , materials science , mineralogy , vitrification , chemistry , inorganic chemistry , crystallography , composite material , metallurgy , organic chemistry , clinker (cement) , nanotechnology , portland cement , cement , engineering , tetraethyl orthosilicate , medicine , andrology
Silicon‐29 nuclear magnetic resonance has been used to probe the effects of temperature and the addition of reactive silica on the silicate structure of amorphous calcium silicate hydrate (C‐S‐H), produced by the hydration of alite (Ca 3 SiO 5 ). Both an increase in the temperature of formation and the addition of reactive silica increase the degree of silicate polymerization in the C‐S‐H. However, in all cases the data are consistent with the formation of linear chain silicates and the absence of any cross‐linking. The initial formation of a hydrated orthosilicate is observed, and it is suggested that this species may form during the adsorption of water onto the surface of alite during storage.