Improvement in the aging resistance of uncoated AR-glass textile reinforcement

Textile-reinforced concrete typically uses coated glass or carbon fibers, but uncoated textiles offer better recyclability and formability. A key challenge is the strength loss of uncoated alkali-resistant (AR) glass fibers due to corrosion in cementitious matrices. This study investigates how optimized concrete mixtures improve aging resistance. By incorporating silica fume, calcined clay, and CEM III blast furnace cement, strength losses of up to 50% – typically observed with CEM I – can be significantly reduced. These findings contribute to more durable and sustainable textile-reinforced concrete solutions.

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http://dx.doi.org/10.1016/j.conbuildmat.2025.140089