The effect of stabilizing agents on the hydration rate of β-C2S

✍ Scribed by Irvin M. Pritts; Kenneth E. Daugherty

• Publisher: Elsevier Science
• Year: 1976
• Tongue: English
• Weight: 676 KB
• Volume: 6
• Category: Article
• ISSN: 0008-8846
• DOI: 10.1016/0008-8846(76)90008-9

✦ Synopsis

Small quantities (<2%) of various metal oxides are incorporated into the lattice of ~-C2S during the high temperature preparation. The effect which these stabilizers have on the hydration rate is examined. A model involving the charge/radius ratio of the metal ion is developed to explain altered hydration rates. This charge/ radius ratio model also proves useful in describing the crystalchemical stabilization of~-C2S.

In addition, the solubility of Cr203 in~-C2S is determined by a novel differential thermal analysis technique. 783 784 Vol. 6, No. 6 I. M. Pritts, K. E. Daugherty no Mn+4 7.5 no 6.7 no AI +3 5.9 no As +3 5.2 no Cr +3 4.8 no Fe +3 4.7 no Mn +3 4.5 no Ti +4 4.1 no Mg +2 3.0 no Ni +2 2.9 no Fe +2 2.7 no Mn +2 2.5 no *Sr +2 1.8 no *Li +I I. 5 no *Ba +2 I. 5 no *Na +I 1.0 yes *K +I 0.8 yes *Stabilization effect, if any, which has been studied by the authors (see Appendix II). **See reference 14.