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dc.contributor.authorMousavi, M.A.
dc.contributor.authorSadeghi-Nik, A.
dc.contributor.authorBahari, A.
dc.contributor.authorAshour, Ashraf
dc.contributor.authorKhayat, K.H.
dc.date.accessioned2022-01-21T09:58:25Z
dc.date.accessioned2022-02-09T16:47:38Z
dc.date.available2022-01-21T09:58:25Z
dc.date.available2022-02-09T16:47:38Z
dc.date.issued2022-05
dc.identifier.citationMousavi MA, Sadeghi-Nik A, Bahari A et al (2022) Cement paste modified by nano-montmorillonite and carbon nanotubes. ACI Materials Journal. 119(3): 173-185.en_US
dc.identifier.urihttp://hdl.handle.net/10454/18743
dc.descriptionYesen_US
dc.description.abstractThis paper investigates the coupled effect of functionalized multiwall carbon nanotubes (MWCNTs-COOH), nanomontmorillonite (NM), and sodium dodecyl benzene sulfonate (SDBS) anionic surfactant on compressive and flexural strengths of cement paste. The response surface methodology (RSM) was used to optimize the content of the two nanomaterials and surfactant, and to analyze the effect of their interactions on mechanical properties and microstructural characteristics of the paste. Test results indicate that the simultaneous use of NM and MWCNT can lead to 30% gain in compressive strength and 40% increase in flexural strength. Using analysis of variance, it was possible to predict the optimal weight percentage of nanomaterials. Atomic Force Microscope observations showed that the use of NM and MWCNT can reduce the surface roughness of cement paste and refine porosity, thus reducing the risk of cracking at the cement matrix and improving the homogeneity of the microstructure.en_US
dc.language.isoenen_US
dc.subjectCementen_US
dc.subjectCentral composite designen_US
dc.subjectMultiwall carbon nanotubesen_US
dc.subjectNanomontmorilloniteen_US
dc.subjectResponse surface methodologyen_US
dc.subjectSodium dodecyl benzene sulfonateen_US
dc.subjectStrengthen_US
dc.titleCement paste modified by nano-montmorillonite and carbon nanotubesen_US
dc.status.refereedYesen_US
dc.typeArticleen_US
dc.type.versionNo full-text in the repositoryen_US
dc.identifier.doihttps://doi.org/10.14359/51734612
dc.date.updated2022-01-21T09:58:30Z
refterms.dateFOA2022-02-09T16:48:03Z
dc.openaccess.statusclosedAccessen_US


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