MG-XONOTLITE AND ITS COEXISTING PHASES

Authors
QIAN GR XU GL LI HY LI AM
Citation
Gr. Qian et al., MG-XONOTLITE AND ITS COEXISTING PHASES, Cement and concrete research, 27(3), 1997, pp. 315-320
Citations number
8
Categorie Soggetti
Construcion & Building Technology","Material Science
Journal title
Cement and concrete research → ACNP
ISSN journal
00088846
Volume
27
Issue
3
Year of publication
1997
Pages
315 - 320
Database
ISI
SICI code
0008-8846(1997)27:3<315:MAICP>2.0.ZU;2-C
Abstract
Mixtures of different MgO/CaO and CaO/SiO2 were treated hydrothermally at 180 to 300 degrees C saturated water vapor pressures for 10h-3days . The results show that tobermorite coexists with Mg(OH)2 and xonotlit e phases at 180 degrees C, that xonotlite phase is coexistent with hyd rous magnesium silicate when Mg(OH)2 disappears at over 240 degrees C. MgO can enter 14.71wt.% into xonotlite phase, more than in tobermorit e phase. At the same time, the variation of lattice parameters in Mg-x onotlite phase is extremely small. (C) 1997 Elsevier Science Ltd.