In the quest for sustainable construction, a groundbreaking study has emerged from the Structural Engineering Department at Ain Shams University, led by Engy Hany. The research, published in the International Journal of Concrete Structures and Materials, delves into the thermal behavior of compressed earth brick (CEB) walls, offering a promising alternative to conventional bricks that contribute significantly to CO2 emissions.
The study, which simulated the thermal behavior of an office building prototype using Design Builder software, reveals that CEB walls made with alkali-activated ground granulated blast furnace slag (GGBS) as a soil stabilizer can dramatically reduce total energy consumption and CO2 emissions. This innovation not only promises environmental benefits but also competitive compressive strength, making it a viable option for modern construction.
“Using walls of compressed earth bricks made by alkali-activated GGBS as a soil stabilizer with full replacement of cement is promising for reducing the total energy consumption and CO2 emissions,” Hany explained. This finding is particularly significant for the energy sector, as it opens up new avenues for reducing the carbon footprint of buildings, which account for a substantial portion of global energy consumption.
The research also highlights the impact of wall thickness and the addition of an expanded polystyrene (EPS) insulating layer. The results showed a reduction in total energy consumption and CO2 emissions by about 21–25% for different wall types of thickness 120 mm when EPS thicknesses increased up to 50 mm compared to the same walls without EPS. This underscores the importance of insulation in enhancing the thermal performance of buildings, a crucial factor in achieving energy efficiency.
The implications of this research are far-reaching. For the energy sector, it presents an opportunity to develop more sustainable building materials that can significantly reduce energy consumption and emissions. For construction companies, it offers a cost-effective and eco-friendly alternative to traditional bricks, potentially leading to a shift in construction practices.
As the world continues to grapple with climate change, the need for sustainable construction practices has never been more urgent. This study, published in the International Journal of Concrete Structures and Materials, provides a compelling case for the adoption of compressed earth bricks in modern construction. It is a step towards a greener future, where buildings not only serve their functional purposes but also contribute to the well-being of the planet.
The findings of this research could shape future developments in the field by encouraging further exploration into the use of eco-friendly materials in construction. It could also lead to the development of new standards and regulations that prioritize sustainability, ultimately driving the construction industry towards a more environmentally conscious future.