In the quest for sustainable construction materials, researchers have turned to an unlikely ally: discarded cotton textiles. A groundbreaking study led by Anabel Patricia Castillo-Rodríguez from the Universidad Politécnica de Madrid has revealed that adding post-consumer cotton textile waste into gypsum compounds can significantly enhance their physical-mechanical properties.
The research, published in the journal ‘Anales de Edificación’ (Annals of Construction), explores how the incorporation of recycled cotton fibers can improve the performance of gypsum, a material widely used in construction for its fire-resistant and soundproofing qualities. The study focused on gypsum specimens of 4x4x16 cm, with the addition of cotton fibers in various lengths and concentrations.
The results are striking. The addition of 35mm cotton fibers at a 0.5% concentration increased the flexural and compressive strength of the gypsum by 5.9% and 11%, respectively. Moreover, the capillary water absorption decreased by 26% with a 1% addition of fibers. This means that the gypsum compounds not only became stronger but also more resistant to water absorption, a critical factor in construction durability.
“One of the most notable findings was that the fibers significantly reduced the detachment of gypsum fragments at the breaking load,” said Castillo-Rodríguez. “This improvement in toughness could lead to more durable and resilient construction materials, which is a game-changer in the industry.”
The implications for the construction and energy sectors are enormous. By reusing textile waste, the construction industry can reduce its reliance on virgin materials, lowering both material and energy costs. This approach aligns with global sustainability goals, promoting a circular economy where waste is minimized, and resources are reused efficiently.
The study also highlights the potential for reducing landfill waste, as textile waste is a significant contributor to environmental degradation. By integrating recycled cotton fibers into gypsum compounds, the construction industry can take a significant step towards sustainability while improving the performance of building materials.
“This research opens up new possibilities for the use of recycled materials in construction,” Castillo-Rodríguez added. “It’s not just about sustainability; it’s about creating stronger, more durable materials that can withstand the test of time.”
The findings from this study could shape future developments in the construction field, encouraging more research into the use of recycled materials. As the industry continues to evolve, the integration of sustainable practices and materials will become increasingly important. The research published in the Annals of Construction provides a compelling case for the adoption of recycled cotton fibers in gypsum compounds, offering a sustainable and efficient solution for the construction industry.