Evaluation of steel fibrous concrete impact resistance properties utilizing incinerated biomedical waste ash for a sustainable future construction

The construction industry is expanding with great pace in current scenario so to meet the demand of this industry, new ingredients such as engineered, composite materials along with ash from thermal power plant as well as biomedical incineration ash are emerged as prominent substitute by weight in concrete. The use of steel fibre with concrete was carried out previously, but the combination of hooked end steel fibre with biomedical ash as partial replacement is not reported. So, effects of incinerated biomedical waste ash (BMA) as a partial replacement for cement on hooked end steel fiber-reinforced concrete composite against impact loads is focused in this manuscript. The objective is to provide insight on how well this material performs and its possible uses in situations where impact resistance is important. Twenty-five mixes have been created for this purpose. Twenty mixtures of cremated biomedical waste ash with 0.5% to 2% of hooked end steel fibres, four steel fiber-reinforced concrete (SFRC) samples, while one served as a control. The drop weight hammer test has a 28-day curing period and is intended to be performed using 5, 10, 15, and 20% of incinerated biomedical waste ash in place of cement. The concrete having 5% biomedical waste ash exhibits the most impact resistance as compare to 2% concentration. According to the findings, it is possible to substitute 7.5% of the cement with incinerated biomedical waste ash combined with steel fibers, which exhibits nearly same impact strength. When more than 7.5% of the cement is replaced with incinerated biomedical waste ash, steel fiber-reinforced concrete exhibits brittle failure as compared to ductile failure, which lowers the concrete’s impact strength.