Using Carpet Fibres for Stronger Concrete.

Engineers have discovered an innovative way to enhance concrete strength and reduce cracking by incorporating scrap carpet fibres.[1] This exciting development not only improves the durability of concrete but also promotes product circularity in the construction industry. The research team, collaborating with partners like Textile Recyclers Australia and Godfrey Hirst, is testing concrete made from recycled textiles. 

Dr. Chamila Gunasekara, a lead researcher from RMIT University, explained that their technique can reduce cracking in concrete by up to 30%, improving its durability. This is crucial, as repairing cracks in reinforced concrete structures costs Australia around A$8 billion annually.

"Cracking in early-age concrete slabs is a long-standing challenge in construction projects that can cause premature corrosion, not only making a building look bad but also risking its structural integrity and safety," said Dr. Gunasekara, an ARC DECRA fellow from the School of Engineering.

Laboratory tests confirm that this innovative concrete meets Australian standards for quality and environmental safety. This breakthrough not only addresses a significant issue in the industry but also helps recycle materials that would otherwise go to waste.

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[1] RMIT University, Carpet fibers can stop concrete cracking, TechXplore (2024. https://techxplore.com/news/2024-11-carpet-fibers-concrete.html#google_vignette