Hybrid effect of GNPs, GOs, and CNTs on the flexural and compressive strengths of cement paste

Mohsen, Mohamed O.; Al-diseet, Malak M.; Aburumman, Mervat O.; Abdel-Jaber, Mu'tasim; Taha, Ramzi; Ansari, Mohamed S. Al; Taqa, Ala Abu

doi:10.1016/j.jobe.2023.106679

Cited by 6 publications

(2 citation statements)

References 27 publications

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“…Cementitious materials, as typical inorganic materials, exhibit significant issues such as brittleness and susceptibility to cracking, which affect their application in engineering. 4–10 Calcium silicate hydrates (C–S–H) is the main product of cement hydration, which determines the durability, strength, and ductility of cement. 11–16 The C–S–H gel contributes significantly to the strength and cohesion of cement paste.…”

Section: Introductionmentioning

confidence: 99%

The influence of the molecular chain length of PVA on the toughening mechanism of calcium silicate hydrates

Cheng,

Zhou,

Zhang

et al. 2024

Phys. Chem. Chem. Phys.

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Section: Introductionmentioning

confidence: 99%

The influence of the molecular chain length of PVA on the toughening mechanism of calcium silicate hydrates

Cheng,

Zhou,

Zhang

et al. 2024

Phys. Chem. Chem. Phys.

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“…Graphene nanoplatelets (GNPs) are one of the most promising nanofillers used to develop high-performance cementbased materials due to their distinct properties [15]. Past research findings have shown that small additions of GNPs can effectively enhance cementitious composites' rheological, mechanical, and microstructural characteristics [16][17][18][19]. However, research on the use of this technology to advance the production of 3D-printed clay elements is still missing or nonexistent.…”

Section: Introductionmentioning

confidence: 99%

3D-Printed Clay Enhanced with Graphene Nanoplatelets for Sustainable and Green Construction

Mohsen,

Al-Diseet,

Aburumman

et al. 2023

Buildings

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This paper presents a study on the effects of graphene nanoplatelets (GNPs) on the mechanical behavior of 3D-printed burnt clay, the most sustainable and green construction material, under constant printing parameters. Mixes with different nanofilament contents—0.1%, 0.2%, and 0.3% by clay weight—were printed and tested under compression and bending loadings. The results obtained on the printed samples were compared with those fabricated using the molding method. The samples’ microstructures were then analyzed using a scanning electron microscope (SEM). Energy dispersive X-ray (EDX) analysis was employed to obtain the elemental distributions. The testing results were then statistically analyzed using a t-statistical method to investigate the impact of using GNPs on the properties of 3D-printed clay. Strength test results showed that mixes containing a low GNP content, i.e., 0.1 wt.%, attained higher compressive and flexural strengths than those containing higher contents, i.e., 0.2 and 0.3wt.%. The results additionally highlighted that the efficiency of GNPs was better observed in the printed samples rather than the molded ones, indicating that the printing process contributed to a better and more uniform dispersion of GNPs in the clay matrix. The t-statistical analysis confirmed that a significant improvement in compressive strength could be obtained using a GNP content of 0.1 wt.%, regardless of the fabrication method. On the other hand, significant flexural strength improvements were observed in the printed samples at all GNP dosages. Micrographs of GNP-modified clay supported the strength results obtained in this study. In summary, this research work signified the importance of using nanofilaments in 3D printing applications in order to achieve the desired elements’ mechanical properties.

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Hybrid effects of graphene oxide-zeolitic imidazolate framework-67 (GO@ZIF-67) nanocomposite on mechanical, thermal, and microstructure properties of cement mortar

Al-Fakih,

Al-Shugaa,

Al-Koshab

et al. 2024

Journal of Building Engineering

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Hybrid effect of GNPs, GOs, and CNTs on the flexural and compressive strengths of cement paste

Cited by 6 publications

References 27 publications

The influence of the molecular chain length of PVA on the toughening mechanism of calcium silicate hydrates

The influence of the molecular chain length of PVA on the toughening mechanism of calcium silicate hydrates

3D-Printed Clay Enhanced with Graphene Nanoplatelets for Sustainable and Green Construction

Hybrid effects of graphene oxide-zeolitic imidazolate framework-67 (GO@ZIF-67) nanocomposite on mechanical, thermal, and microstructure properties of cement mortar

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