Modification of cement-based materials with nanoparticles

Shiho Kawashima; Pengkun Hou; David J. Corr; Surendra P. Shah

doi:10.1016/j.cemconcomp.2012.06.012

Modification of cement-based materials with nanoparticles

Shiho Kawashima^*, Pengkun Hou, David J. Corr, Surendra P. Shah

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

504 Scopus citations

Abstract

This is a summary paper on the work being done at the Center for Advanced Cement-Based Materials at Northwestern University on the modification of cement-based materials with nanoparticles, specifically nanoclays, calcium carbonate nanoparticles, and nanosilica. The rheological properties of clay-modified cement-based materials are investigated to understand the influence of nanoclays on thixotropy. The influence of the method of dispersion of calcium carbonate nanoparticles on rate of hydration, setting, and compressive strength are evaluated. And an in-depth study on the mechanisms underlying the influence of nanosilica on the compressive strength gain of fly ash-cement systems is discussed. The motivation behind these studies is that with proper processing techniques and fundamental understanding of the mechanisms underlying the effect of the nanoparticles, they can be used to enhance the fresh-state and hardened properties of cement-based materials for various applications. Nanoclays can increase the green strength of self-consolidating concrete for reduced formwork pressure and slipform paving. Calcium carbonate nanoparticles and nanosilica can offset the negative effects of fly ash on early-age properties to facilitate the development of a more environmentally friendly, high-volume fly ash concrete.

Original language	English (US)
Pages (from-to)	8-15
Number of pages	8
Journal	Cement and Concrete Composites
Volume	36
Issue number	1
DOIs	https://doi.org/10.1016/j.cemconcomp.2012.06.012
State	Published - Feb 2013

Funding

The authors would like to acknowledge the financial support from both the Infrastructure Technology Institute at Northwestern University and Tennessee Valley Authority (TVA) and Oak Ridge Associated Universities (ORAU) (Award 105866). The second author would also like to thank China Scholarship Council for its financial support during his stay at Northwestern University.

Keywords

Clay
Fly ash
NanoCaCO
NanoSiO
Nanomodification
Rheology

ASJC Scopus subject areas

Building and Construction
General Materials Science

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10.1016/j.cemconcomp.2012.06.012

Cite this

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title = "Modification of cement-based materials with nanoparticles",

abstract = "This is a summary paper on the work being done at the Center for Advanced Cement-Based Materials at Northwestern University on the modification of cement-based materials with nanoparticles, specifically nanoclays, calcium carbonate nanoparticles, and nanosilica. The rheological properties of clay-modified cement-based materials are investigated to understand the influence of nanoclays on thixotropy. The influence of the method of dispersion of calcium carbonate nanoparticles on rate of hydration, setting, and compressive strength are evaluated. And an in-depth study on the mechanisms underlying the influence of nanosilica on the compressive strength gain of fly ash-cement systems is discussed. The motivation behind these studies is that with proper processing techniques and fundamental understanding of the mechanisms underlying the effect of the nanoparticles, they can be used to enhance the fresh-state and hardened properties of cement-based materials for various applications. Nanoclays can increase the green strength of self-consolidating concrete for reduced formwork pressure and slipform paving. Calcium carbonate nanoparticles and nanosilica can offset the negative effects of fly ash on early-age properties to facilitate the development of a more environmentally friendly, high-volume fly ash concrete.",

keywords = "Clay, Fly ash, NanoCaCO, NanoSiO, Nanomodification, Rheology",

author = "Shiho Kawashima and Pengkun Hou and Corr, {David J.} and Shah, {Surendra P.}",

note = "Funding Information: The authors would like to acknowledge the financial support from both the Infrastructure Technology Institute at Northwestern University and Tennessee Valley Authority (TVA) and Oak Ridge Associated Universities (ORAU) (Award 105866). The second author would also like to thank China Scholarship Council for its financial support during his stay at Northwestern University. ",

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doi = "10.1016/j.cemconcomp.2012.06.012",

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AU - Corr, David J.

AU - Shah, Surendra P.

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PY - 2013/2

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N2 - This is a summary paper on the work being done at the Center for Advanced Cement-Based Materials at Northwestern University on the modification of cement-based materials with nanoparticles, specifically nanoclays, calcium carbonate nanoparticles, and nanosilica. The rheological properties of clay-modified cement-based materials are investigated to understand the influence of nanoclays on thixotropy. The influence of the method of dispersion of calcium carbonate nanoparticles on rate of hydration, setting, and compressive strength are evaluated. And an in-depth study on the mechanisms underlying the influence of nanosilica on the compressive strength gain of fly ash-cement systems is discussed. The motivation behind these studies is that with proper processing techniques and fundamental understanding of the mechanisms underlying the effect of the nanoparticles, they can be used to enhance the fresh-state and hardened properties of cement-based materials for various applications. Nanoclays can increase the green strength of self-consolidating concrete for reduced formwork pressure and slipform paving. Calcium carbonate nanoparticles and nanosilica can offset the negative effects of fly ash on early-age properties to facilitate the development of a more environmentally friendly, high-volume fly ash concrete.

AB - This is a summary paper on the work being done at the Center for Advanced Cement-Based Materials at Northwestern University on the modification of cement-based materials with nanoparticles, specifically nanoclays, calcium carbonate nanoparticles, and nanosilica. The rheological properties of clay-modified cement-based materials are investigated to understand the influence of nanoclays on thixotropy. The influence of the method of dispersion of calcium carbonate nanoparticles on rate of hydration, setting, and compressive strength are evaluated. And an in-depth study on the mechanisms underlying the influence of nanosilica on the compressive strength gain of fly ash-cement systems is discussed. The motivation behind these studies is that with proper processing techniques and fundamental understanding of the mechanisms underlying the effect of the nanoparticles, they can be used to enhance the fresh-state and hardened properties of cement-based materials for various applications. Nanoclays can increase the green strength of self-consolidating concrete for reduced formwork pressure and slipform paving. Calcium carbonate nanoparticles and nanosilica can offset the negative effects of fly ash on early-age properties to facilitate the development of a more environmentally friendly, high-volume fly ash concrete.

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Modification of cement-based materials with nanoparticles

Abstract

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Keywords

ASJC Scopus subject areas

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