In the quest for sustainable construction materials, researchers are turning to an unlikely resource: discarded tires. A recent bibliometric study published in the journal *Geotechnics* (translated from Arabic as “Geotechnics”) sheds light on the growing trend of using sand-rubber tire mixtures in geotechnical engineering, offering a promising solution to both environmental and economic challenges.
Led by Madhusudhan Bangalore Ramu from the Department of Civil and Construction Engineering at A’Sharqiyah University in Oman, the study analyzed 366 publications from 2000 to 2025, revealing a significant uptick in research activity post-2015. This surge reflects a heightened interest in sustainable construction practices and the potential of tire-derived aggregates to enhance soil stabilization, embankment reinforcement, seismic isolation, and drainage.
“Improper disposal of waste tires has been a persistent issue, leading to pollution and inefficient resource utilization,” Ramu explained. “Our study highlights how sand-rubber mixtures can address these challenges while contributing to the circular economy.”
The research identified key themes in the field, including the optimization of shear strength, enhancement of compressibility, and mitigation of seismic impacts. Citation network maps revealed influential studies and collaborative research networks that are driving advancements in this area.
Despite the advantages, challenges such as compaction difficulties, variability in rubber particle size, and long-term durability remain. Ramu emphasized the need for further research, particularly in large-scale field applications and the standardization of design methodologies. “Future studies should also focus on integrating advanced computational modeling to optimize performance,” he added.
The commercial implications for the energy sector are substantial. As the demand for sustainable and cost-effective construction materials grows, sand-rubber mixtures could become a viable option for infrastructure projects, including those in the energy sector. This could lead to reduced waste, lower costs, and enhanced environmental stewardship.
Ramu’s study not only contributes to the development of sand-rubber mixtures but also positions them as a viable and ecological solution within the framework of sustainable construction practices. As the industry continues to evolve, this research could shape future developments, paving the way for innovative and environmentally friendly construction materials.