UM
Microstructure of magnesium potassium phosphate cement
Chau C.K.; Qiao F.; Li Z.
2011-06-01
Source PublicationConstruction and Building Materials
ISSN09500618
Volume25Issue:6Pages:2911-2917
AbstractThe ever growing concerns over global warming and other detrimental ecological changes have spurred the research and development of new types of cementitious materials. Along this line, magnesium potassium phosphate cement (MKPC) appears as one of the most promising candidates, especially in the field of rapid repair. A systematic study of the microstructure of MKPC is conducted, starting from paste design and phase identification, to morphology examination and compositional analysis. The experimental results show that the mechanical properties of the cement pastes are influenced by the crystallinity and growth of magnesium potassium phosphate hexahydrate, the principal reaction product of the heterogeneous system. The final form of the hexahydrate developed in the matrix largely depends on the growth conditions, which is closely related to the calculated molar ratio of magnesia to phosphate (M/P). It is demonstrated that a poor crystal growth and a significant amount of unreacted raw materials can be observed in the cement pastes with low M/P ratios, while a better crystal growth associated with high early strength can be achieved for the pastes with an M/P ratio as high as ten folds of the theoretical one. Finally, the microstructural observations of the different crystalline phases in MKPC are further verified by compositional analysis which agree well with the theoretical values. © 2011 Elsevier Ltd. All rights reserved.
KeywordAcid-base reaction Cement Magnesium potassium phosphate Microstructure
DOI10.1016/j.conbuildmat.2010.12.035
URLView the original
Language英語
Fulltext Access
Citation statistics
Cited Times [WOS]:86   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
AffiliationHong Kong University of Science and Technology
Recommended Citation
GB/T 7714
Chau C.K.,Qiao F.,Li Z.. Microstructure of magnesium potassium phosphate cement[J]. Construction and Building Materials,2011,25(6):2911-2917.
APA Chau C.K.,Qiao F.,&Li Z..(2011).Microstructure of magnesium potassium phosphate cement.Construction and Building Materials,25(6),2911-2917.
MLA Chau C.K.,et al."Microstructure of magnesium potassium phosphate cement".Construction and Building Materials 25.6(2011):2911-2917.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chau C.K.]'s Articles
[Qiao F.]'s Articles
[Li Z.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chau C.K.]'s Articles
[Qiao F.]'s Articles
[Li Z.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chau C.K.]'s Articles
[Qiao F.]'s Articles
[Li Z.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.