CONCRETE PRODUCTION

In our pursuit of sustainable solutions to address environmental challenges, the treatment and reuse of wastewater have gained significant attention. The automobile industry, renowned for its substantial water consumption and discharge, has emerged as a focal point for exploring innovative approaches to wastewater management. This study investigates the potential applications, benefits, and challenges associated with utilizing automobile wastewater in construction activities. The scope of work involved collecting samples from car wash facilities, analyzing chemical and mineral properties, preparing concrete mixes, and conducting tests using both potable water and automobile wastewater. Laboratory tests on the automobile wastewater samples demonstrated that key parameters such as Total Dissolved Solids (TDS), chloride (Cl⁻), bicarbonate (HCO₃), and sulfate (SO₄) were within standard limits for concrete production. Notably, the setting time tests on cement molds revealed a significant 27.73% reduction in initial setting time and a 14.81% increase in final setting time using first wash compared to potable water. The use of second wash resulted in a more substantial 45.38% decrease in initial setting time and a modest 3.70% increase in final setting time. Slump tests correlated detergent concentration with higher values for the first wash. However, the compression tests on concrete indicated a decrease in strength, with a 35.96% reduction at 28 days against first wash and a more significant 54.75% reduction against second wash. In conclusion it is evident that for automobile waste water to be used for concrete production, it must undergo process of treatment. As recommendation, it is advised to implement effective treatment processes for automobile wastewater before incorporating it into concrete production, ensuring that the construction materials meet required standards and contribute to sustainable environmental practices in the automobile industry.