In a significant stride towards sustainable construction, researchers at the Tecnológico Nacional de México/ITS de Misantla have unveiled promising findings on the durability of steel-reinforced concrete structures in coastal environments. Led by Humberto Raymundo González-Moreno, the study, published in the journal Infrastructures, emphasizes the potential of using sugarcane bagasse ash (SBA) and silica fume (SF) as alternative materials to enhance concrete performance while mitigating environmental impacts.
Concrete, a fundamental material in infrastructure, is responsible for approximately 8% to 9% of global greenhouse gas emissions. This research addresses the urgent need for sustainable practices in construction by exploring how agro-industrial waste can be repurposed. “The incorporation of SBA and SF not only improves the durability of concrete but also contributes to the economic development of the sugar sector,” González-Moreno stated. This dual benefit positions the construction sector to reduce its carbon footprint while supporting local economies.
The study highlights that a 15% replacement of conventional cement with SBA resulted in a 25% reduction in corrosion rates and a 12% increase in compressive strength after 150 days. Even more impressive, the addition of SF enhanced carbonation resistance by 20% and compressive strength by 25%. These findings are particularly relevant for regions like Boca del Río, Veracruz, where coastal conditions expose structures to aggressive agents such as CO2 and SO2.
“By utilizing agricultural byproducts like sugarcane bagasse, we can transform waste into a valuable resource, fostering community awareness and promoting local processing and commercialization,” González-Moreno added. This innovative approach not only addresses the environmental challenges posed by traditional concrete production but also opens new avenues for economic opportunities in the sugarcane industry.
As the construction sector grapples with the impacts of climate change, this research could pave the way for new standards in material usage, encouraging the adoption of sustainable alternatives. The findings suggest that modified concrete, which reduces the need for high-temperature processing and aggregate extraction, can significantly lower environmental impact while ensuring structural reliability.
For the construction industry, the implications are clear. The use of SBA and SF could lead to more resilient infrastructures that withstand the test of time and adverse conditions, ultimately shaping future developments in sustainable construction practices. This study not only provides a scientific foundation for innovation but also encourages public policies aimed at reducing the environmental footprint of construction activities.
As the industry moves forward, the findings from González-Moreno and his team serve as a beacon of hope for a more sustainable future in construction. For more information on their work, visit the Division of Graduate Studies and Research at Tecnológico Nacional de México/ITS de Misantla lead_author_affiliation.