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HomeKey Engineering MaterialsKey Engineering Materials Vol. 539Study on the Unhydrated Cement Grain/C-S-H Gel...

Study on the Unhydrated Cement Grain/C-S-H Gel Interface in Cement Paste by Use of Nano-Scratch Technique

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Abstract:

Investigation at micro- and nano-scale is beneficial for the fundamental study of cement-based material as an extremely complex composite. This paper presents a preliminary exploration on the unhydrated cement grain/ C-S-H gel interface using nano-scratch technique. By comprehensive analysis of the penetration depth, the coefﬁcient of friction, and the elastic deformation ratio, the interfacial width of different w/c ratio and curing age were obtained, which shows a tendency to increase with the curing age in the range of 1-4 um, while has no relation to the w/c ratio.

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Periodical:

Key Engineering Materials (Volume 539)

Pages:

84-88

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.539.84

Citation:

Cite this paper

Online since:

January 2013

Authors:

Yue Mao, Wu Yao, Jing Xu

Keywords:

Cement Paste, Interface Width, Nano-Scratch, Tribological Property

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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