Investigate The Potential of Graphene to Enhance Concrete Performances

Abstract

Concrete is a fundamental construction material used worldwide, but its inherent brittleness, susceptibility to cracking, and environmental impact due to high cement consumption remain challenges. The integration of graphene, a nanomaterial with exceptional mechanical and electrical properties, offers a promising approach to enhancing concrete’s strength, durability, and sustainability. This study investigates the potential of graphene to improve concrete performance, particularly in Ethiopia, where sustainable construction practices are increasingly vital. The primary objective of this research is to explore how graphene powder can enhance the mechanical properties of concrete while optimizing its composition. Evaluating the impact of graphene on compressive and flexural strength.Identifying the optimal graphene dosage for maximum performance. Analyzing the microstructural changes in concrete using advanced testing techniques. .Graphene powder was incorporated into concrete at varying concentrations (0.1%–0.5%) by weight of cement. Standard laboratory tests, including compressive and flexural strength evaluations (ASTM C39 and C78), X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) are use to characterization the graphene micro structure and water absorption assessments, were conducted to measure performance improvements. Additionally, Scanning Electron Microscopy (SEM) was used to analyze graphene's distribution within the concrete matrix.Experimental findings showed that graphene-enhanced concrete exhibited superior mechanical properties, with compressive strengths reaching 25.16 N/mm² at 7 days and 37.75 N/mm² at 28 days. Similarly, flexural strength improved to 2.985 N/mm² and 4.47 N/mm², respectively. XRD analysis confirmed successful graphene integration, with a characteristic peak at 26.5 degrees. Water absorption tests indicated enhanced resistance to permeability, contributing to improved durability. The study highlights the potential of graphene to reduce cement consumption and enhance construction sustainability, A graphene dosage of 0.4% is recommended for optimizing strength and durability . Future research should focus on long-term durability studies, economic viability, and large-scale implementation strategies. This study demonstrates graphene's transformative potential in revolutionizing concrete technology, paving the way for stronger, more sustainable, and resilient infrastructure development.