NDLI: Dominant factors on the early hydration of metakaolin-cement paste

Content Provider	Springer Nature Link
Author	Shui, Zhonghe Sun, Tao Fu, Zhiheng Wang, Guiming
Copyright Year	2010
Abstract	The dominant factors during early hydration process of cement paste containing 10% metakaolin replacement (MK10) and 10% kaolin replacement (K10) are investigated in comparison to neat cement paste (NCP), and X-ray Diffraction (XRD) analysis is employed to identify the crystalline phases of all specimens. Thermogravimetric (TG) and Differential Scanning Calorimetry (DSC) are used to identify the phase constituents. The amount of acid-insoluble residue (AIR) of all specimens is used to evaluate the unreacted materials. The results indicate that, after the first day, MK act as nuclei for the formation of C-S-H during hydration of C$_{3}$S and C$_{2}$S, densifying the microstructure of cement paste. Its contribution is mainly due to the fine nature of the MK. From 3 days to 7 days, more and more MK reacts with CH to form C-S-H, making the microstructure denser. The strength contribution is mainly due to the chemical activity of MK.
Starting Page	849
Ending Page	852
Page Count	4
File Format	PDF
ISSN	10002413
Journal	Journal of Wuhan University of Technology-Mater. Sci. Ed.
Volume Number	25
Issue Number	5
e-ISSN	19930437
Language	English
Publisher	Wuhan University of Technology
Publisher Date	2010-10-07
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	metakaolin (MK) hydration dominant factor cement paste Materials Science
Content Type	Text
Resource Type	Article
Subject	Materials Science

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