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- Publisher Website: 10.1016/j.cemconres.2018.06.013
- Scopus: eid_2-s2.0-85046293938
- WOS: WOS:000440529500002
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Article: Enhancing thixotropy of fresh cement pastes with nanoclay in presence of polycarboxylate ether superplasticizer (PCE)
Title | Enhancing thixotropy of fresh cement pastes with nanoclay in presence of polycarboxylate ether superplasticizer (PCE) |
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Authors | |
Keywords | Focused Beam Reflectance Measurement (FBRM) Thixotropy (A) Stiffening mechanism PCE (D) Nanoclay (D) |
Issue Date | 2018 |
Citation | Cement and Concrete Research, 2018, v. 111, p. 15-22 How to Cite? |
Abstract | © 2018 Elsevier Ltd Nanoclay, a thermal treated, purified attapulgite clay, has been used to increase thixotropy. However, the effect of nanoclay in presence of water reducing agent, such as PCE, on rheology, and the compatibility between nanoclay and PCE have not been well studied. The dynamic yield stress, thixotropic index, characteristic time, and microstructure of fresh cement pastes with combination of nanoclay and PCE addition are measured. It is found that nanoclay has a good compatibility with PCE. Nanoclay increases the dynamic yield stress and enhances the thixotropy of fresh cement pastes with and without PCE addition. The nanoclay addition agglomerates the microstructure at high PCE addition and increases the thixotropic index from bottom value to a high value. This study gives insight of achieving low dynamic yield stress yet high static yield stress and thixotropy mixtures. |
Persistent Identifier | http://hdl.handle.net/10722/278531 |
ISSN | 2023 Impact Factor: 10.9 2023 SCImago Journal Rankings: 4.781 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Qian, Ye | - |
dc.contributor.author | De Schutter, Geert | - |
dc.date.accessioned | 2019-10-11T02:54:02Z | - |
dc.date.available | 2019-10-11T02:54:02Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Cement and Concrete Research, 2018, v. 111, p. 15-22 | - |
dc.identifier.issn | 0008-8846 | - |
dc.identifier.uri | http://hdl.handle.net/10722/278531 | - |
dc.description.abstract | © 2018 Elsevier Ltd Nanoclay, a thermal treated, purified attapulgite clay, has been used to increase thixotropy. However, the effect of nanoclay in presence of water reducing agent, such as PCE, on rheology, and the compatibility between nanoclay and PCE have not been well studied. The dynamic yield stress, thixotropic index, characteristic time, and microstructure of fresh cement pastes with combination of nanoclay and PCE addition are measured. It is found that nanoclay has a good compatibility with PCE. Nanoclay increases the dynamic yield stress and enhances the thixotropy of fresh cement pastes with and without PCE addition. The nanoclay addition agglomerates the microstructure at high PCE addition and increases the thixotropic index from bottom value to a high value. This study gives insight of achieving low dynamic yield stress yet high static yield stress and thixotropy mixtures. | - |
dc.language | eng | - |
dc.relation.ispartof | Cement and Concrete Research | - |
dc.subject | Focused Beam Reflectance Measurement (FBRM) | - |
dc.subject | Thixotropy (A) | - |
dc.subject | Stiffening mechanism | - |
dc.subject | PCE (D) | - |
dc.subject | Nanoclay (D) | - |
dc.title | Enhancing thixotropy of fresh cement pastes with nanoclay in presence of polycarboxylate ether superplasticizer (PCE) | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.cemconres.2018.06.013 | - |
dc.identifier.scopus | eid_2-s2.0-85046293938 | - |
dc.identifier.volume | 111 | - |
dc.identifier.spage | 15 | - |
dc.identifier.epage | 22 | - |
dc.identifier.isi | WOS:000440529500002 | - |
dc.identifier.issnl | 0008-8846 | - |