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dc.contributor.authorLi, Z.
dc.contributor.authorDong, S.
dc.contributor.authorAshour, Ashraf F.
dc.contributor.authorWang, X.
dc.contributor.authorThakur, V.K.
dc.contributor.authorHan, B.
dc.contributor.authorShah, S.P.
dc.date.accessioned2021-12-03T11:06:11Z
dc.date.accessioned2021-12-10T09:34:40Z
dc.date.available2021-12-03T11:06:11Z
dc.date.available2021-12-10T09:34:40Z
dc.date.issued2022-01-05
dc.identifier.citationLi Z, Dong S, Ashour AF et al (2022) On the incorporation of nano TiO2 to inhibit concrete deterioration in the marine environment. Nanotechnology. 33(13): 135704.en_US
dc.identifier.urihttp://hdl.handle.net/10454/18676
dc.descriptionYesen_US
dc.description.abstractTo develop high deterioration resistance concrete for marine infrastructures, two types of nano TiO2 (NT) including anatase phase NT and silica surface-treated rutile phase NT were incorporated into concrete. The fabricated NT modified concrete was then put into the marine environment for 21 months in this study. The effects and mechanisms of two types of NT on the deterioration of concrete in the marine environment were investigated from three aspects, including seawater physical and biological and chemical actions on concrete with NT. Under the seawater physical action, the exposed degree of coarse sand particles on the surface of control concrete is greater than that of concrete with NT. Owing to the microorganism biodegradation property of NT, the elimination and inhibition rates of concrete with NT on microorganisms can reach up to 76.98% and 96.81%, respectively. In addition, the surface biofilm thickness of concrete can be reduced by 49.13% due to the inclusion of NT. In the aspect of seawater chemical action, NT can increase the pH value inside concrete by 0.81, increase the degree of polymerization of C-S-H gel, and improve the interfacial transition zone between cement paste and aggregate in concrete. Compared to concrete with anatase phase NT, silica surface-treated rutile phase NT is more effective in improving the deterioration resistance of concrete in the marine environment. It can be concluded that incorporating NT can inhibit the deterioration of concrete in the marine environment.en_US
dc.language.isoenen_US
dc.publisherhttps://publishingsupport.iopscience.iop.org/accepted-manuscripts/
dc.relation.isreferencedbyhttps://doi.org/10.1088/1361-6528/ac3f55en_US
dc.rights(c) 2022 IoP. This is an author-created, un-copyedited version of an article accepted for publication/published in Nanotechnology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6528/ac3f55. Reuse permitted under CC-By-NC-ND 3.0 (https://creativecommons.org/licenses/by-nc-nd/3.0/)en_US
dc.subjectNano TiO2en_US
dc.subjectConcrete deteriorationen_US
dc.subjectMarine environmenten_US
dc.titleOn the incorporation of nano TiO2 to inhibit concrete deterioration in the marine environmenten_US
dc.status.refereedYesen_US
dc.date.Accepted2021-12-02
dc.date.application2021-12-02
dc.typeArticleen_US
dc.type.versionAccepted manuscripten_US
dc.date.updated2021-12-03T11:06:13Z
refterms.dateFOA2021-12-10T09:35:08Z
dc.openaccess.statusGreenen_US


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