High strength Engineered Cementitious Composites (ECC) with recycling waste glass powder: Mechanical properties and environmental benefits

Engineered Cementitious Composites (ECC) is innovative fiber-reinforced materials known for their excellent tensile ductility, yet their binder imposes significant environmental burdens. In this study, a low-carbon, ductile ECC was developed by partially replacing cement with waste glass powder (GP). This study investigated the impact of GP replacement on mechanical properties of ECC, including compressive strength, tensile performance and four-point bending performance. The CO 2 footprint of GP-ECC was also investigated for developing an environmentally sustainable GP-ECC that features the unique ductile performance. The results indicated that replacing cement with waste GP effectively reduces CO₂ emissions and energy consumption to 394.27 kg/m 3 and 3.71 GJ/m 3 , respectively. Additionally, GP-ECC exhibits a compressive strength ranging from 66.2 to 101.1 MPa, accompanied by a tensile strength of 6–8 MPa and a tensile strain capacity of 4–7 %. Overall, this study demonstrates that recycling waste GP in ECC provides an eco-friendly production method and conserves non-renewable resources.