Recent research led by Maizuar Maizuar from Malikussaleh University has unveiled promising advancements in the construction materials sector, specifically regarding high-volume fly ash mortar (HVFAM). This innovative study, published in the Electronic Journal of Structural Engineering, investigates the mechanical properties of HVFAM when modified with hybrid carbon nanotubes (CNT) and graphene oxide (GO).
The construction industry has long grappled with the dual challenge of enhancing material performance while minimizing environmental impact. Maizuar’s research addresses this issue by exploring the potential of using fly ash—a byproduct of coal combustion—as a sustainable alternative to traditional cement. By replacing 60% of the cement with fly ash and incorporating small amounts of CNT and GO, the study reveals significant improvements in the mechanical properties of the mortar.
“The incorporation of hybrid CNT and GO not only enhances the strength of the mortar but also contributes to its sustainability,” Maizuar stated. The results indicate that even a modest addition of these nanomaterials can lead to a 15.8% improvement in early-age strength, with the maximum 28-day strength increasing by approximately 23% at specific dosages. This enhancement could translate into more durable structures, reducing maintenance costs and extending the lifespan of concrete applications.
However, the study also highlights a trade-off: as the content of CNT and GO increases, there is a notable reduction in workability and setting time. This is particularly critical for construction professionals who must balance the need for strong, durable materials with the practicalities of working with them on-site. “While the accelerated hydration process is beneficial for strength development, it poses challenges in terms of handling and application,” Maizuar cautioned, emphasizing the importance of optimizing dosages for practical use.
The implications of this research are vast. As the construction sector increasingly seeks eco-friendly solutions, the findings could pave the way for the widespread adoption of HVFAM modified with CNT and GO. This approach not only aligns with sustainability goals but also addresses the growing demand for high-performance materials in a competitive market.
With the construction industry under pressure to innovate, the insights gained from Maizuar’s study could lead to the development of new standards and practices that prioritize both environmental responsibility and structural integrity. As the sector evolves, the integration of advanced materials like HVFAM could become a key differentiator for companies looking to enhance their competitive edge.
For more information about this research, you can visit Malikussaleh University.
