Efficient Use of Graphene Oxide and Silica Fume in Cement-Based Composites

Incorporation of graphene oxide (GO) and silica fume (SF) to cement composites enhances their mechanical properties if suitable proportional amounts of GO and SF are used. This study presents a simplified approach to determine experimentally the optimum GO and SF contents that should be added to the...

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Autores principales:	Ahmad Abdullah, Mohamed Taha, Mohamed Rashwan, Mohamed Fahmy
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	cement composites graphene oxide silica fume mix design Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/ccbcc6b425464834b51bd134c75f393b
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spelling	oai:doaj.org-article:ccbcc6b425464834b51bd134c75f393b2021-11-11T18:06:17ZEfficient Use of Graphene Oxide and Silica Fume in Cement-Based Composites10.3390/ma142165411996-1944https://doaj.org/article/ccbcc6b425464834b51bd134c75f393b2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6541https://doaj.org/toc/1996-1944Incorporation of graphene oxide (GO) and silica fume (SF) to cement composites enhances their mechanical properties if suitable proportional amounts of GO and SF are used. This study presents a simplified approach to determine experimentally the optimum GO and SF contents that should be added to the cementitious mixture to obtain a proper and stable dispersion of GO sheets within the cement matrix. Composite mortar specimens with different GO and SF contents were designed and tested under flexural and compression loading. The phase formation and the microstructure of selected samples were also investigated to give an in-depth interpretation of the test results. The main criterion to determine the GO and SF contents was the ultimate strength required of the GO–cement composite. It was found that there was a composite interaction between the SF and GO contents in the cementitious mixture, which an envelope surface could describe if all other mix design parameters are kept constant.Ahmad AbdullahMohamed TahaMohamed RashwanMohamed FahmyMDPI AGarticlecement compositesgraphene oxidesilica fumemix designTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6541, p 6541 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cement composites graphene oxide silica fume mix design Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	cement composites graphene oxide silica fume mix design Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Ahmad Abdullah Mohamed Taha Mohamed Rashwan Mohamed Fahmy Efficient Use of Graphene Oxide and Silica Fume in Cement-Based Composites
description	Incorporation of graphene oxide (GO) and silica fume (SF) to cement composites enhances their mechanical properties if suitable proportional amounts of GO and SF are used. This study presents a simplified approach to determine experimentally the optimum GO and SF contents that should be added to the cementitious mixture to obtain a proper and stable dispersion of GO sheets within the cement matrix. Composite mortar specimens with different GO and SF contents were designed and tested under flexural and compression loading. The phase formation and the microstructure of selected samples were also investigated to give an in-depth interpretation of the test results. The main criterion to determine the GO and SF contents was the ultimate strength required of the GO–cement composite. It was found that there was a composite interaction between the SF and GO contents in the cementitious mixture, which an envelope surface could describe if all other mix design parameters are kept constant.
format	article
author	Ahmad Abdullah Mohamed Taha Mohamed Rashwan Mohamed Fahmy
author_facet	Ahmad Abdullah Mohamed Taha Mohamed Rashwan Mohamed Fahmy
author_sort	Ahmad Abdullah
title	Efficient Use of Graphene Oxide and Silica Fume in Cement-Based Composites
title_short	Efficient Use of Graphene Oxide and Silica Fume in Cement-Based Composites
title_full	Efficient Use of Graphene Oxide and Silica Fume in Cement-Based Composites
title_fullStr	Efficient Use of Graphene Oxide and Silica Fume in Cement-Based Composites
title_full_unstemmed	Efficient Use of Graphene Oxide and Silica Fume in Cement-Based Composites
title_sort	efficient use of graphene oxide and silica fume in cement-based composites
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ccbcc6b425464834b51bd134c75f393b
work_keys_str_mv	AT ahmadabdullah efficientuseofgrapheneoxideandsilicafumeincementbasedcomposites AT mohamedtaha efficientuseofgrapheneoxideandsilicafumeincementbasedcomposites AT mohamedrashwan efficientuseofgrapheneoxideandsilicafumeincementbasedcomposites AT mohamedfahmy efficientuseofgrapheneoxideandsilicafumeincementbasedcomposites
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Efficient Use of Graphene Oxide and Silica Fume in Cement-Based Composites

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