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- Publisher Website: 10.1016/j.matchar.2012.08.008
- Scopus: eid_2-s2.0-84867192413
- WOS: WOS:000310423400018
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Article: Quantifying the distribution of paste-void spacing of hardened cement paste using X-ray computed tomography
Title | Quantifying the distribution of paste-void spacing of hardened cement paste using X-ray computed tomography |
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Authors | |
Keywords | Paste-void spacing Cement X-ray CT Air voids |
Issue Date | 2012 |
Citation | Materials Characterization, 2012, v. 73, p. 137-143 How to Cite? |
Abstract | The distribution of paste-void spacing in cement-based materials is an important feature related to the freeze-thaw durability of these materials, but its reliable estimation remains an unresolved problem. Herein, we evaluate the capability of X-ray computed tomography (CT) for reliable quantification of the distribution of paste-void spacing. Using X-ray CT images of three mortar specimens having different air-entrainment characteristics, we calculate the distributions of paste-void spacing of the specimens by applying previously suggested methods for deriving the exact spacing of air-void systems. This methodology is assessed by comparing the 95th percentile of the cumulative distribution function of the paste-void spacing with spacing factors computed by applying the linear-traverse method to 3D air-void system and reconstructing equivalent air-void distribution in 3D. Results show that the distributions of equivalent void diameter and paste-void spacing follow lognormal and normal distributions, respectively, and the ratios between the 95th percentile paste-void spacing value and the spacing factors reside within the ranges reported by previous numerical studies. This experimental finding indicates that the distribution of paste-void spacing quantified using X-ray CT has the potential to be the basis for a statistical assessment of the freeze-thaw durability of cement-based materials. © 2012 Elsevier Inc. |
Persistent Identifier | http://hdl.handle.net/10722/251008 |
ISSN | 2023 Impact Factor: 4.8 2023 SCImago Journal Rankings: 1.137 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Yun, Tae Sup | - |
dc.contributor.author | Kim, Kwang Yeom | - |
dc.contributor.author | Choo, Jinhyun | - |
dc.contributor.author | Kang, Dong Hun | - |
dc.date.accessioned | 2018-02-01T01:54:19Z | - |
dc.date.available | 2018-02-01T01:54:19Z | - |
dc.date.issued | 2012 | - |
dc.identifier.citation | Materials Characterization, 2012, v. 73, p. 137-143 | - |
dc.identifier.issn | 1044-5803 | - |
dc.identifier.uri | http://hdl.handle.net/10722/251008 | - |
dc.description.abstract | The distribution of paste-void spacing in cement-based materials is an important feature related to the freeze-thaw durability of these materials, but its reliable estimation remains an unresolved problem. Herein, we evaluate the capability of X-ray computed tomography (CT) for reliable quantification of the distribution of paste-void spacing. Using X-ray CT images of three mortar specimens having different air-entrainment characteristics, we calculate the distributions of paste-void spacing of the specimens by applying previously suggested methods for deriving the exact spacing of air-void systems. This methodology is assessed by comparing the 95th percentile of the cumulative distribution function of the paste-void spacing with spacing factors computed by applying the linear-traverse method to 3D air-void system and reconstructing equivalent air-void distribution in 3D. Results show that the distributions of equivalent void diameter and paste-void spacing follow lognormal and normal distributions, respectively, and the ratios between the 95th percentile paste-void spacing value and the spacing factors reside within the ranges reported by previous numerical studies. This experimental finding indicates that the distribution of paste-void spacing quantified using X-ray CT has the potential to be the basis for a statistical assessment of the freeze-thaw durability of cement-based materials. © 2012 Elsevier Inc. | - |
dc.language | eng | - |
dc.relation.ispartof | Materials Characterization | - |
dc.subject | Paste-void spacing | - |
dc.subject | Cement | - |
dc.subject | X-ray CT | - |
dc.subject | Air voids | - |
dc.title | Quantifying the distribution of paste-void spacing of hardened cement paste using X-ray computed tomography | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.matchar.2012.08.008 | - |
dc.identifier.scopus | eid_2-s2.0-84867192413 | - |
dc.identifier.volume | 73 | - |
dc.identifier.spage | 137 | - |
dc.identifier.epage | 143 | - |
dc.identifier.isi | WOS:000310423400018 | - |
dc.identifier.issnl | 1044-5803 | - |