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DC Field | Value | Language |
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dc.contributor.author | Chougan, M | - |
dc.contributor.author | Lamastra, FR | - |
dc.contributor.author | Bolli, E | - |
dc.contributor.author | Caschera, D | - |
dc.contributor.author | Kaciulis, S | - |
dc.contributor.author | Mazzuca, C | - |
dc.contributor.author | Montesperelli, G | - |
dc.contributor.author | Ghaffar, SH | - |
dc.contributor.author | Al-Kheetan, MJ | - |
dc.contributor.author | Bianco, A | - |
dc.date.accessioned | 2021-12-31T08:45:11Z | - |
dc.date.available | 2021-12-31T08:45:11Z | - |
dc.date.issued | 2021-12-02 | - |
dc.identifier | 3278 | - |
dc.identifier.citation | Chougan, M., Lamastra, F.R., Bolli, E., Caschera, D., Kaciulis, S., Mazzuca, C., Montesperelli, G., Ghaffar, S.H., Al-Kheetan, M.J. and Bianco, A. (2021) ‘Extra-Low Dosage Graphene Oxide Cementitious Nanocomposites: A Nano- to Macroscale Approach’, Nanomaterials, 11 (12), 3278, pp. 1-20. doi: 10.3390/nano11123278. | en_US |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/23852 | - |
dc.description.abstract | Copyright: © 2021 by the authors. The impact of extra-low dosage (0.01% by weight of cement) Graphene Oxide (GO) on the properties of fresh and hardened nanocomposites was assessed. The use of a minimum amount of 2-D nanofiller would minimize costs and sustainability issues, therefore encouraging the market uptake of nanoengineered cement-based materials. GO was characterized by X-ray Photoelectron Spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), Atomic Force Microscopy (AFM), X-ray Diffraction (XRD), and Raman spectroscopy. GO consisted of stacked sheets up to 600 nm × 800 nm wide and 2 nm thick, oxygen content 31 at%. The impact of GO on the fresh admixtures was evaluated by rheology, flowability, and workability measurements. GO-modified samples were characterized by density measurements, Scanning Electron Microscopy (SEM) analysis, and compression and bending tests. Permeability was investigated using the boiling-water saturation technique, salt ponding test, and Initial Surface Absorption Test (ISAT). At 28 days, GO-nanocomposite exhibited increased density (+14%), improved compressive and flexural strength (+29% and +13%, respectively), and decreased permeability compared to the control sample. The strengthening effect dominated over the adverse effects associated with the worsening of the fresh properties; reduced permeability was mainly attributed to the refining of the pore network induced by the presence of GO. | en_US |
dc.format.extent | 1 - 20 | - |
dc.format.medium | Electronic | - |
dc.language.iso | en_US | en_US |
dc.publisher | MDPI AG | en_US |
dc.rights | Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This is an open access article distributed under the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | graphene oxide | en_US |
dc.subject | cementitious nanocomposites | en_US |
dc.subject | rheology | en_US |
dc.subject | workability | en_US |
dc.subject | mechanical properties | en_US |
dc.subject | permeability | en_US |
dc.title | Extra-low dosage graphene oxide cementitious nanocomposites: A nano-to macroscale approach | en_US |
dc.type | Article | en_US |
dc.identifier.doi | https://doi.org/10.3390/nano11123278 | - |
dc.relation.isPartOf | Nanomaterials | - |
pubs.issue | 12 | - |
pubs.publication-status | Published | - |
pubs.volume | 11 | - |
dc.identifier.eissn | 2079-4991 | - |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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