Fresh and hardened performance of concrete enhanced with graphene nanoplatelets (GNPs)

Jaramillo, Leidys Johana; Kalfat, Robin

doi:10.1016/j.jobe.2023.106945

Cited by 6 publications

(1 citation statement)

References 46 publications

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“…4 shows an illustration of the fresh ECC-G mixture before and after the addition of PVA fibers following the slump flow 3. Since GNP has a negative effect on the workability due to its hydrophobic nature, agglomeration potential, large specific surface area, high aspect ratio and strong Van der Waals bonds between particles [37,38], it can be seen that more amount of HRWRA was used to achieve the same level of flowing ability. PVA fibers were finally incorporated and mixed thoroughly to ensure even distribution and avoid bundling throughout the matrix.…”

Section: Mixing Proceduresmentioning

confidence: 99%

Investigating the Effect of GNP Addition on Self-healing of ECC through Mechanical and Nondestructive Testing

Göçügenci,

Keskin

2024

Period. Polytech. Civil Eng.

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Inclusion of nanomaterials is an effective method for enhancing the mechanical and durability characteristics of cement-based materials. Among various graphene-based nanomaterials, graphene nanoplatelets (GNPs) are cost-effective nanoparticles that possess graphene's key properties. Since limited information is available regarding their influence on the fresh, mechanical, non-destructive, and self-healing behavior of Engineered Cementitious Composites (ECC), this research focuses on GNP inclusion on these properties of ECC in a comprehensive way. In this research, the changes in material properties of ECC were monitored with several mechanical and nondestructive test methods. According to the results, GNP inclusion significantly enhanced flexural behavior and also promoted self-healing of ECC, with preloaded specimens exhibiting substantial or complete crack closure and similar performance to virgin specimens. Non-destructive tests and microstructural analyses also confirmed the promoting effects of GNP. A noticeable increase was observed in compressive strength when GNP was included. In conclusion, this study provides compelling evidence about the positive impact of GNP inclusion on improving the properties of ECC. The findings demonstrate the potential of GNPs to enhance the performance of cementitious materials and offer valuable insights for future research and practical applications.

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Section: Mixing Proceduresmentioning

confidence: 99%