Analysis of the effect of heating and re-curing on the microstructure of high-strength concrete using X-ray CT

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

Construction and Building Materials, 2014, 67(Part A), 37-46

Permalink : https://hdl.handle.net/2115/57545

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アクセス権	open access
URI	https://hdl.handle.net/2115/57545
タイトル	Analysis of the effect of heating and re-curing on the microstructure of high-strength concrete using X-ray CT
著者	Henry, Michael ; Darma, Ivan Sandi ; Sugiyama, Takafumi
著者名 Henry, Michael
著者名 Darma, Ivan Sandi
著者名 Sugiyama, Takafumi
言語	英語
キーワード	Microstructure
	Connectivity
	High temperature
	Re-curing
	X-ray CT
	Non-destructive evaluation
	High-strength concrete
発行日	2014-09-30
出版者	Elsevier
収録物名	Construction and Building Materials
巻(号)	67(Part A)
ページ	37-46
抄録	Microstructure recovery plays an important role in restoring the performance of concrete damaged by fire. This research applied X-ray CT and image analysis techniques to non-destructively examine the internal microstructure of high-strength concrete in order to clarify the effects of heating and re-curing on microstructure characteristics. Heating caused an increase in total pore space due to an increase in connectivity caused by the formation of cracks in the mortar-aggregate interface and bridging cracks. Water re-curing, however, was effective in recovering microstructure through the reduction in connected pore space, with most recovery occurring within 7 days.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0950-0618
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.conbuildmat.2013.11.007