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Hydration study of slag-blended cement based on thermodynamic considerations

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Title: Hydration study of slag-blended cement based on thermodynamic considerations
Authors: Elakneswaran, Yogarajah Browse this author
Owaki, Eiji Browse this author
Miyahara, Shigeyoshi Browse this author
Ogino, Masataka Browse this author
Maruya, Tsuyoshi Browse this author
Nawa, Toyoharu Browse this author →KAKEN DB
Keywords: Thermodynamic calculations
Slag-blended cement
Hydration products
Pore solution
Issue Date: 15-Oct-2016
Publisher: Elsevier
Journal Title: Construction and building materials
Volume: 124
Start Page: 615
End Page: 625
Publisher DOI: 10.1016/j.conbuildmat.2016.07.138
Abstract: Thermodynamic calculations, using the geochemical code PHREEQC coupled with empirical equations for kinetics of cement hydration and slag reaction, were carried out to predict the compositions of the hydrate assemblage and pore solutions of hydrating Portland cement and cement blended with slag and the blended cement containing limestone. The predicted compositions of hydration products and element concentrations in pore solutions compared well with experimental data reported in literature. The calculation results showed the varying Ca/Si and Al/Si ratios of calcium aluminosilicate hydrate (C-A-S-H)(1) in the hydration products due to hydration and slag addition. Limitations on the equation for reaction of slag and the importance of a C-A-S-H solid solution model in prediction of hydration products are discussed.
Rights: © 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Elakneswaran YOGARAJAH

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