Nucleation effect of graphene in mechanical and microstructure properties of mortar with copper slag and quarry dust

In recent days, research on graphene-based cement has gained prominence owing to its distinct characteristics, such as ultimate ductile behavior, enhanced specific surface area, and activation effect. Previous research suggests that Graphene Nanoplatelets (GNP) have the potential to enhance the micr...

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Bibliographic Details
Published inFullerenes, nanotubes, and carbon nanostructures Vol. 31; no. 12; pp. 1137 - 1156
Main Authors S, Divya, Shanmugam, Praveenkumar
Format Journal Article
LanguageEnglish
Published Taylor & Francis 02.12.2023
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Summary:In recent days, research on graphene-based cement has gained prominence owing to its distinct characteristics, such as ultimate ductile behavior, enhanced specific surface area, and activation effect. Previous research suggests that Graphene Nanoplatelets (GNP) have the potential to enhance the micro- and macro-properties of cement-based composites. This study analyzes the performance of graphene nanoplatelets (GNP) with industrial by-products, such as copper slag (CS) and quarry dust (QD) admixed as partial replacement fine aggregates in mortar mixes. The mix proportions were optimized by improving the packing intensity through particle packing theory (Andersen and Modified Andreasen model) to reduce the number of trial mixes. According to the particle packing theory, the experimental analysis revealed that copper slag and quarry dust exhibited maximum strength at 40% replacement. A maximum compressive strength of 63.23 MPa was achieved in the mortar mixed with 0.25% GNP and 40% copper slag (25G2CS). In addition to the experimental analysis, the functional groups and changes in the elemental characteristics of the different cement composites were studied using microstructure analysis. The significance of this research is to optimize the materials used in the construction industry as well as to enhance the strength and durability of cement composites.
ISSN:1536-383X
1536-4046
DOI:10.1080/1536383X.2023.2255319