Sustainable Tire Waste Biochar Additives for Enhancing Concrete Strength and Eco-Efficiency

This study checks the practicality of incorporating Waste Tire Biochar (WTBC) during the manufacturing process of concrete as an eco-friendly new option. The study focuses on the effect of mechanical properties and the carbon footprint due to the use of the biochar on traditional concrete. Environmental Impact Assessment (EIA) data demonstrates that the substitution of 1% of cement with WTBC leads to the reduction of CO 2 emissions by 1%. On the other hand, 7% replacement, a whopping 7% reduction in CO 2 emissions is realized. This means that there is a significant reduction from 291.15 kg/m³ of CO² for conventional concrete to 270.76 kg/m³ for concrete that contains 7% WTBC. Additionally, WTBC saves approximately 93% of CO₂ emissions in comparison to the solutions based on open burning for waste tires. This research provides evidence for the WTBC as a potential contributor to the environmental sustainability in construction without any compromise of the structural integrity.