Experimental and operations viability assessment of powder-to-powder (P2P) mixture of graphene and cement for industrial applications

Yunusa-Kaltungo, Akilu; Su, Meini; Manu, Patrick; Cheung, Clara M.; Gallego-Schmid, Alejandro; Tarpani, Raphael Ricardo Zepon; Hao, Jingyue; Ma, Lin

Abstract

Studies have demonstrated that a minute quantity of graphene is sufficient to boost cement characteristics, but the attainment of good dispersion and uniformity of the resultant graphene-cement mixture remains a challenge. To alleviate these challenges, this study proposes a low-energy powder-to-powder homogeniser for dispersing reasonably large quantities of graphene powder into cement powders. Microscopic analysis of graphene dispersion from two samples (1% and 0.02% graphene) at 5x, 10x and 20x objectives revealed that graphene accounts for 1.3% and 0.09% over the cement area respectively, which is relatively uniform across all selected samples. Furthermore, four different dosages of graphene were used to validate the impacts of various proportions of graphene, i.e., 0%, 0.02%, 0.04% and 0.06% (by mass of cement) on two types of cement (i.e., Portland cement CEM I 52.5 N and Portland cement CEM II 42.5 N) which also revealed compressive strength increases up to 25% at 7 and 28 days.

• Journal Article Type: Article
• Acceptance Date: May 13, 2024
• Online Publication Date: May 16, 2024
• Publication Date: Jun 21, 2024
• Deposit Date: May 17, 2024
• Publicly Available Date: May 21, 2024
• Journal: Construction and Building Materials
• Print ISSN: 0950-0618
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 432
• Article Number: 136657
• DOI: https://doi.org/10.1016/j.conbuildmat.2024.136657
• Public URL: https://uwe-repository.worktribe.com/output/11999224
• Additional Information: This article is maintained by: Elsevier; Article Title: Experimental and operations viability assessment of powder-to-powder (P2P) mixture of graphene and cement for industrial applications; Journal Title: Construction and Building Materials; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.conbuildmat.2024.136657; Content Type: article; Copyright: © 2024 The Author(s). Published by Elsevier Ltd.