By Ayo Onikoyi

The rapid transformation in civil engineering and construction appears to be gaining momentum, thanks to a jaw-dropping research by experts dedicated to addressing environmental sustainability and economic challenges.

Engr. Suraj Adedamola Rahmon, an acclaimed civil engineer and material scientist, is at the forefront of this movement.

His innovative exploration into using Corn Cob Ash (CCA) as a pozzolan in civil engineering construction can potentially revolutionize the industry.

Engr. Rahmon, who holds an MSc in Civil Engineering from Coventry University, United Kingdom, has established himself as a leader in sustainable construction materials research.

With a focus on cement and concrete materials, his career spans over a decade of groundbreaking work. He has extensively studied the properties of cementitious materials, their durability, and the role of innovative, eco-friendly substitutes to conventional materials in construction.

In his most recent study, “An Investigation of the Use of Corn Cob Ash as a Substitute to Cement in Civil Engineering Construction,” Engr. Rahmon tackles a dual challenge: managing agricultural waste and reducing the construction industry’s environmental footprint.

Nigeria, the 13th largest corn producer globally, generates over 1 million tonnes of corn cobs annually as a byproduct of maize production. These discarded cobs have long posed environmental hazards, representing a significant waste management challenge. At the same time, they present a valuable opportunity for sustainable resource utilization that remains largely untapped..

“Corn cob ash is a siliceous and aluminous material that can significantly reduce cement usage while providing an environmentally friendly alternative,” Engr. Rahmon explained.

He noted “Our findings confirmed that CCA can serve as a viable pozzolan, reacting chemically with lime during cement hydration to form compounds with cementitious properties.

This according to him, reduced greenhouse gas emissions and paves the way for sustainable construction practices.”

Further findings showed how he demonstrates how Corn Cob Ash can replace a portion of Portland cement in concrete production.

Portland cement, while essential for modern infrastructure, contributes significantly to greenhouse gas emissions. By integrating CCA into the mix, Engr. Rahmon’s findings suggest that it is possible to reduce cement use, lower production costs, and minimize the industry’s environmental impact.

“Repurposing agricultural waste like corn cobs into valuable construction materials aligns perfectly with global sustainability goals. It’s not just about reducing environmental hazards but also about creating economic opportunities for rural communities,” he said.

Engr. Rahmon’s work directly aligns with the United Nations’ Millennium Development Goal Number 1, which focuses on poverty eradication as well as helping the construction industry lower its emissions.

By converting agricultural waste into valuable construction material, rural communities can access cost-effective housing solutions while benefiting economically from the commercialization of CCA.

Beyond his research on CCA, Engr. Rahmon has played a pivotal role in other high-profile initiatives. he was instrumental in developing low-carbon binders from clay and other biomass in producing paving blocks and non-load bearing applications. His expertise spans in the uses of advanced analytical techniques, including calorimetry, X-ray fluorescence (XRF), Thermogravimetric Analysis (TGA), and Scanning Electron Microscopy (SEM), enabling precise characterization of materials for cutting-edge applications.

Engr. Rahmon emphasised the importance of bridging theory and practical application.

 “Scientific innovation should solve real-world challenges,” he noted. “By integrating sustainability into construction practices, we can significantly reduce costs while mitigating the environmental impact of one of the world’s most resource-intensive industries.”

His ability to blend meticulous research with a vision for impact has earned him recognition as a highly motivated and innovative professional in the fields of cement chemistry and sustainable construction.

Engr. Rahmon’s contributions offer a path toward a more sustainable and inclusive future. By transforming agricultural waste like corn cobs into an essential component of modern infrastructure, his work underscores the transformative power of scientific innovation.

“Creating eco-friendly construction materials is not just a professional pursuit for me; it’s a personal mission to make the world a better place,” Engr. Rahmon said. “Sustainability in construction is no longer optional—it is essential.”

For Engr. Rahmon, the future of construction lies in innovation, sustainability, and a commitment to addressing global challenges.