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Probing Nanostructure of Calcium Silicate Hydrate by AFM and Nanoindentation

Liang, Kang / Yao, Wu / Chen, Lin-Jie / Gao, Qun

It is important to study the nanostructure and mechanical properties of calcium silicate hydrate at the nanoscale for it is the main binding phase in Portland cement paste. In this paper, atomic force microscopy and nanoindentation (NI) were combine used to determine the morphology and mechanical properties of Calcium Silicate Hydrate (C-S-H) at microscale. It is found that C-S-H is made of globules from size of 50 nm to 300 nm irrelevant with water-to-cement ratio and ages in nanostructure, and we suggest that the maximum load for NI testing of the C-S-H is no more than 2 mN.

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Probing Nanostructure of Calcium Silicate Hydrate by AFM and Nanoindentation

Liang, Kang / Yao, Wu / Chen, Lin-Jie / Gao, Qun

It is important to study the nanostructure and mechanical properties of calcium silicate hydrate at the nanoscale for it is the main binding phase in Portland cement paste. In this paper, atomic force microscopy and nanoindentation (NI) were combine used to determine the morphology and mechanical properties of Calcium Silicate Hydrate (C-S-H) at microscale. It is found that C-S-H is made of globules from size of 50 nm to 300 nm irrelevant with water-to-cement ratio and ages in nanostructure, and we suggest that the maximum load for NI testing of the C-S-H is no more than 2 mN.

Probing Nanostructure of Calcium Silicate Hydrate by AFM and Nanoindentation

Liang, Kang / Yao, Wu / Chen, Lin-Jie / Gao, Qun

It is important to study the nanostructure and mechanical properties of calcium silicate hydrate at the nanoscale for it is the main binding phase in Portland cement paste. In this paper, atomic force microscopy and nanoindentation (NI) were combine used to determine the morphology and mechanical properties of Calcium Silicate Hydrate (C-S-H) at microscale. It is found that C-S-H is made of globules from size of 50 nm to 300 nm irrelevant with water-to-cement ratio and ages in nanostructure, and we suggest that the maximum load for NI testing of the C-S-H is no more than 2 mN.

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Title:

Probing Nanostructure of Calcium Silicate Hydrate by AFM and Nanoindentation

Contributors:

Liang, Kang (author) / Yao, Wu (author) / Chen, Lin-Jie (author) / Gao, Qun (author)

Published in:

Testing and Evaluation of Advanced Building Materials, TEBM, National Academic Symposium on Testing and Evaluation of Building Materials, 1 ; 80-83

Key Engineering Materials ; 539

Publication date:

2013

Size:

4 Seiten

ISSN:

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.539.80

Type of media:

Conference paper

Type of material:

Print

Language:

English

Keywords:

Zementpaste , Nanohärteeindruck , Calciumsilicathydrat , Nanogefüge , Rasterkraftmikroskopie , Calciumsilicat , Portlandzement , Mikromaßstab

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