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MAS/NMR studies of the hydration process of β -C2S in the presence of chromium

✍ Scribed by J.H. Chen; Y.Y. Wang; C.C. Wan; D.C. Liou

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 223 KB
Volume: 24
Category: Article
ISSN: 0008-8846
DOI: 10.1016/0008-8846(94)90058-2

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✦ Synopsis

The effects of chromium (Cr) on the hydration process of 13 -dicalcium silicate (f5 -C2S) were investigated using the 29 Si solid state magic-angle spinning/nuclear magnetic resonance (MAS/NMR) technique.

We found that soluble Cr 3+ ions inhibit the hydration process of g -C2S. Furthermore, Cr(NO3) 3 has the least impact on the hydration of 13 -C2S, followed by CrC13 and Cr(CH 3 COO)3. However, insoluble Cr(OH) 3 does not show any interaction with 13 -C2S.

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