2020
DOI: 10.3390/polym12122900 View full text |Buy / Rent full text
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Abstract: One of the considerable challenges in the design of cementitious mixtures for additive manufacturing/three-dimensional (3D) printing applications is achieving both suitable fresh properties and significant mechanical strengths. This paper presents the use of graphene oxide (GO) as a promising nano reinforcement material with the potential to improve the printing feasibility and quality of a 3D printed cementitious matrix. Additionally, in this study, a viscosity modifying agent (VMA) was employed as a chemical… Show more

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“…The printable cementitious mixture was fabricated from ordinary Portland cement, industrial waste materials, GO, and chemical additives. GO improved the printability, the fresh mechanical properties and after 28 days curing as well (compression strength of 125 MPa), signaling this route as a viable method for 3D fabrication of a wide range of engineered cementitious materials for civil and construction applications, which is a promising novel manufacturing technology for reducing cost in the use of cement materials [ 318 ].…”
Section: Structural Engineering Applications Of Ceramic/graphene Compositesmentioning
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“…The printable cementitious mixture was fabricated from ordinary Portland cement, industrial waste materials, GO, and chemical additives. GO improved the printability, the fresh mechanical properties and after 28 days curing as well (compression strength of 125 MPa), signaling this route as a viable method for 3D fabrication of a wide range of engineered cementitious materials for civil and construction applications, which is a promising novel manufacturing technology for reducing cost in the use of cement materials [ 318 ].…”
Section: Structural Engineering Applications Of Ceramic/graphene Compositesmentioning
“…Then, GO was added drop-wise to the CS solution. The reaction was carried out under stirring at room temperature for 36 h. To investigate the effects of the grafting level on the dispersibility of GO in the cementitious medium, different amounts of CS (2,5,7,10,25,35,50 or 60 wt%, with respect to GO) were added to the reaction mixture. The grafted GO samples were filtered and washed with water to remove the precursor residue.…”
Section: Cs Grafting Onto Gomentioning
“…Graphene oxide (GO) consisting of oxygenated carbon‐hexagonal structures has been recognized as a promising reinforcement material for polymer and cementitious composites 1,2 . The most important challenges that should be addressed to achieve the full potential of GO nano‐materials in these composites are their dispersion and interfacial interactions with the matrices 3–5 .…”
Section: Introductionmentioning
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“…Additionally, the nanomaterials are very small in size and dispersed in the cement mortars, which can fill the internal pores of the cement mortars [ 13 ] and improve the compaction of cementitious materials. Due to its excellent properties, graphene, a novel nanomaterial, shows important promise in many fields such as electronics, photonics, biophysics, and materials science [ 14 , 15 , 16 , 17 , 18 ], and it also has great potential for application in cement composites [ 19 , 20 ].…”
Section: Introductionmentioning