Hydration of ferrite-rich Portland cement: Evaluation of Fe-hydrates and Fe uptake in calcium-silicate-hydrates

Noguchi, Natsumi; Siventhirarajah, Krishnya; Chabayashi, Takashi; Kato, Hiroyoshi; Nawa, Toyoharu; Elakneswaran, Yogarajah

Hydration of ferrite-rich Portland cement: Evaluation of Fe-hydrates and Fe uptake in calcium-silicate-hydrates

Noguchi, Natsumi; Siventhirarajah, Krishnya; Chabayashi, Takashi et al.

Construction and building materials, 2021, 288, 123142

Permalink : https://hdl.handle.net/2115/88719

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アクセス権	open access
URI	https://hdl.handle.net/2115/88719
タイトル	Hydration of ferrite-rich Portland cement: Evaluation of Fe-hydrates and Fe uptake in calcium-silicate-hydrates
著者	Noguchi, Natsumi ; Siventhirarajah, Krishnya ; Chabayashi, Takashi ; Kato, Hiroyoshi ; Nawa, Toyoharu ; Elakneswaran, Yogarajah
著者名 Noguchi, Natsumi
著者名 Siventhirarajah, Krishnya
著者名 Chabayashi, Takashi
著者名 Kato, Hiroyoshi
e-Rad_Researcher 30292056 著者名 Nawa, Toyoharu
著者名 Elakneswaran, Yogarajah
言語	英語
キーワード	Ferrite-rich cement (FC)
	Hydration
	Fe phases
	Calcium-silicate-hydrate (C-S-H)
	Thermodynamic modelling
発行日	2021-06-21
出版者	Elsevier
収録物名	Construction and building materials
巻(号)	288
ページ	123142
抄録	The hydration process in ferrite-rich cement (FC) and its pore structure have been investigated by experimental and thermodynamic modelling techniques. X-ray diffraction (XRD)/Rietveld analysis, thermogravimetry (TG), and mercury intrusion porosimetry (MIP) were performed to study the hydration process, pore volume-pore size distributions, and Fe uptake in calcium-silicate-hydrate (C-S-H). Similar phases were found in both FC and ordinary Portland cement (OPC). The hydration degree of FC was higher at the early stage compared with that of OPC; however, the hydration of OPC exceeded that of FC after 14 days because the high amount of C2S in OPC promoted the late hydration. The XRD-TG results revealed relatively similar Fe uptake by C-S-H in both FC and OPC. The thermodynamic model confirmed the formation of a high amount of Fe phases in FC. Moreover, the model predictions agreed well with the experimental results, demonstrating the accuracy of the proposed model for FC.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
権利情報	© <2021>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
PISSN	0950-0618
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.conbuildmat.2021.123142