In the heart of Morocco, a groundbreaking approach to construction is emerging, one that could reshape the industry’s environmental footprint and resilience. Researchers, led by Mohamed Char of the Research Team in Thermal and Applied Thermodynamics at Moulay Ismaïl University of Meknès, are pioneering a method to recycle local soils into high-performance, eco-friendly building materials. Their work, published in the journal *Next Materials* (translated as “Next Materials”), offers a promising alternative to traditional construction methods, with significant implications for the energy sector.
The construction industry is a major contributor to global energy consumption and CO₂ emissions. In Morocco, traditional earthen buildings, while thermally efficient, often lack the structural integrity to withstand seismic and climatic stresses. The devastating 2023 Al Haouz earthquake underscored this vulnerability, prompting a search for innovative solutions.
Enter geopolymerization, a low-carbon alternative to Portland cement. Char and his team have successfully transformed locally available materials—pozzolan, kaolin, sandstone, and limestone—into compressed earth bricks with remarkable mechanical and durability improvements. “We’ve seen gains of over 1200% in compressive strength for pozzolan-based bricks,” Char explains. “This is a game-changer for the construction industry.”
The process involves activating these materials with a solution of sodium hydroxide and sodium silicate. The results are impressive: water absorption decreased by up to 55%, and carbon emissions could be reduced by up to 70% compared to Portland cement stabilization. “This isn’t just about improving building materials; it’s about creating a sustainable future,” Char asserts.
The commercial impacts for the energy sector are substantial. By reducing the carbon footprint of construction, this technology aligns with Morocco’s national energy transition goals. It also supports energy efficiency and seismic safety, critical factors in a country prone to earthquakes and semi-arid conditions.
This research opens doors to future developments in the field. As Char notes, “The potential is vast. We’re not just talking about Morocco; this technology can be adapted globally.” The use of local resources not only reduces transportation emissions but also supports local economies.
In an industry ripe for innovation, Char’s work stands out. It’s a testament to the power of recycling and sustainable practices, offering a viable pathway for climate-resilient construction. As the world grapples with the urgent need for low-carbon alternatives, this research provides a beacon of hope and a blueprint for the future.