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Title:

Molecular Dynamics Study of Interaction Between Corrosion Inhibitors, Nanoparticles, and Other Minerals in Hydrated Cement

Accession Number:

01157615

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States
Order URL: http://www.trb.org/Main/Blurbs/Nanotec...Cement_and_Concrete_Volume_2_163738.aspx

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Order URL: http://worldcat.org/isbn/9780309142779

Abstract:

How NaNO2 corrosion inhibitors and water molecules interact with nanoparticles and other minerals in hydrated cement is investigated at the nanoscale, with a focus on the dynamic behavior of inhibitors in the pore solution at different length and timescales. Representative minerals in hydrated cement (ettringite, Friedel’s salt, jennite, kuzelite, portlandite, and tobermorite) and nanoparticles (Al2O3, Fe2O3, SiO2, and TiO2) are computationally studied. The parameters for potential functions of NO2 ion necessary to describe interactions are evaluated from inverse parameterization. The focus is on the structure of nanoparticles, minerals, and water molecules near the solution–solid interface. Information on interactions of aqueous species with their surroundings is retrieved by molecular dynamics simulations, which provide insight into dynamic behaviors around the solution–solid interfaces. Further analysis reveals that the solid surfaces have a strong effect on the dynamic behaviors of corrosion inhibitors.

Monograph Accession #:

01157601

Report/Paper Numbers:

NANO10-0033

Language:

English

Authors:

Liu, Yajun
Shi, Xianming

Pagination:

pp 58-66

Publication Date:

2010

Serial:

Transportation Research Record: Journal of the Transportation Research Board

Issue Number: 2142
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

9780309142779

Media Type:

Print

Features:

Figures (8) ; References (42) ; Tables (5)

Subject Areas:

Materials; I32: Concrete

Files:

TRIS, TRB, ATRI

Created Date:

May 27 2010 9:28AM

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