Modifying Cement Hydration with NS@PCE Core-Shell Nanoparticles
Joint Authors
Ran, Qianping
Gu, Yue
She, Wei
Liu, Jiaping
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-07-27
Country of Publication
Egypt
No. of Pages
13
Abstract EN
It is generally accepted that fine particles could accelerate cement hydration process, or, more specifically, this accelerating effect can be attributed to additional surface area introduced by fine particles.
In addition to this view, the surface state of fine particles is also an important factor, especially for nanoparticles.
In the previous study, a series of nano-SiO2-polycarboxylate superplasticizer core-shell nanoparticles (NS@PCE) were synthesized, which have a similar particle size distribution but different surface properties.
In this study, the impact of NS@PCE on cement hydration was investigated by heat flow calorimetry, mechanical property measurement, XRD, and SEM.
Results show that, among a series of NS@PCE, NS@PCE-2 with a moderate shell-core ratio appeared to be more effective in accelerating cement hydration.
As dosage increases, the efficiency of NS@PCE-2 would reach a plateau which is quantified by various characteristic values.
Compressive strength results indicate that strength has a linear correlation with cumulative heat release.
A hypothesis was proposed to explain the modification effect of NS@PCE, which highlights a balance between initial dispersion and pozzolanic reactivity.
This paper provides a new understanding for the surface modification of supplementary cementitious materials and their application and also sheds a new light on nano-SiO2 for optimizing cement-based materials.
American Psychological Association (APA)
Gu, Yue& Ran, Qianping& She, Wei& Liu, Jiaping. 2017. Modifying Cement Hydration with NS@PCE Core-Shell Nanoparticles. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1123942
Modern Language Association (MLA)
Gu, Yue…[et al.]. Modifying Cement Hydration with NS@PCE Core-Shell Nanoparticles. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1123942
American Medical Association (AMA)
Gu, Yue& Ran, Qianping& She, Wei& Liu, Jiaping. Modifying Cement Hydration with NS@PCE Core-Shell Nanoparticles. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1123942
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123942