Cracking and Chemical Composition of Cement Paste Subjected to Heating and Water Re-Curing

Henry, Michael; Hashimoto, Katsufumi; Darma, Ivan Sandi; Sugiyama, Takafumi

doi:10.3151/jact.14.134


Hokkaido University \| Library \| HUSCAP	Advanced Search		言語

	Home
	About HUSCAP
	Open Access Policy

	Browse by Author

Browse
	Communities & Collections

	Scholarly Journals
	Theses
	Doctoral Dissertations Listed by Graduate Schools
	Conference Procs.
	Events

	HUSCAP Senior (in Japanese)

	Societies

	Downloads (country)

For university staff
	How to post your papers to HUSCAP
	Publication of theses
	Helpline about theses publication

Open Archives Compliant

You can search our collection also at:
	Google
	Google Scholar
	CiNii
	IRDB
	OAIster
	NDLTD

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >

Cracking and Chemical Composition of Cement Paste Subjected to Heating and Water Re-Curing

This item is licensed under:Creative Commons Attribution 2.0 Generic

Files in This Item:

14_134.pdf

1.85 MB

PDF

View/Open

Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/63007

Title:	Cracking and Chemical Composition of Cement Paste Subjected to Heating and Water Re-Curing
Authors:	Henry, Michael Browse this author
	Hashimoto, Katsufumi Browse this author
	Darma, Ivan Sandi Browse this author
	Sugiyama, Takafumi Browse this author →KAKEN DB
Issue Date:	Apr-2016
Publisher:	Japan Concrete Institute
Journal Title:	Journal of advanced concrete technology
Volume:	14
Issue:	4
Start Page:	134
End Page:	143
Publisher DOI:	10.3151/jact.14.134
Abstract:	Water re-curing of fire-damaged concrete may reduce the environmental and economic impacts of repair operations by re-using the existing concrete. To clarify the rehydration mechanism, the effects of water re-curing on the microstructure and chemical properties of fire-damaged cement paste were examined. Analysis by X-ray CT showed that heating led to radial cracks that propagated horizontally and vertically in the cement paste specimen. Water supply led to a growth in the cracked space through an increase in the connectivity of the crack network. This growth may be due to expansion caused by the rehydration of CaO into Ca(OH)(2). Chemical analyses suggest that the rehydration reaction differs from the initial hydration in that C2S plays a greater role in generating C-S-H gel during the earlier period of water re-curing.
Rights:	https://creativecommons.org/licenses/by/2.0/
Type:	article
URI:	http://hdl.handle.net/2115/63007
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: HENRY Michael Ward

OAI-PMH ( junii2 , jpcoar_1.0 )

- Hokkaido University