Reactivity and function of magnesium oxide in sorel cement
Li Z.; Chau C.K.
Source PublicationJournal of Materials in Civil Engineering
AbstractThe reactivity, or rate of consumption, of magnesium oxide (MgO) powder used in forming magnesium oxychloride (MOC) cement is largely affected by its thermal history and particle size. That, in turn, influences both reaction rate and properties of the reaction products of MOC cement. It is believed that the traditional measurements of properties of MgO powder itself are not able to reflect the actual consumption rate of MgO during chemical reaction, which is the key information needed for the appropriate proportions of starting materials to ensure the formation of Phase 5 crystals for better strength and physical properties. The experimental results show that X-ray diffractograms and phase diagram of a ternary MOC system can be utilized to evaluate the reactivity of MgO, and to optimize the formulation of MOC cement as well. Consequently, the apparent molar ratios of MgO over magnesium chloride (MgCl) are adopted and recommended. The equivalent weight ratios between MgO and MgCl are also given for the convenience of normal applications. © ASCE.
KeywordCements Chemicals Particle size Portland cements
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Cited Times [WOS]:20   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
AffiliationHong Kong University of Science and Technology
Recommended Citation
GB/T 7714
Li Z.,Chau C.K.. Reactivity and function of magnesium oxide in sorel cement[J]. Journal of Materials in Civil Engineering,2008,20(3):239-244.
APA Li Z.,&Chau C.K..(2008).Reactivity and function of magnesium oxide in sorel cement.Journal of Materials in Civil Engineering,20(3),239-244.
MLA Li Z.,et al."Reactivity and function of magnesium oxide in sorel cement".Journal of Materials in Civil Engineering 20.3(2008):239-244.
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