Experimental investigation shows graphene enhances compressive strength in concrete, indicating improved thermal performance.
This paper presents the outcomes of an experimental investigation into graphene nanoengineered sustainable concrete, utilizing porous recycled concrete aggregates (RCA) as carriers for phase-change materials (PCM). The PCM impregnated-RCA (PCM-RCA) composite was created through an immersion technique followed by carbonation using high-purity carbon dioxide. Test results reveal that the addition of 0.02% graphene significantly enhances the 28-day compressive strength of PCM-RCA concrete compared to standard RCA concrete. In terms of thermal performance, experimental tests demonstrate that graphene reinforced PCM-RCA concrete has the potential to reduce indoor peak temperatures by 4.9 °C compared to RCA concrete. The graphene nanoengineered PCM-RCA concrete emerges as an innovative and sustainable building material suitable for thermal conditioning, offering the prospect of saving thermal energy consumption.
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Md Jaynul Abden (2024) studied this question.
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