Influence of treated and purified wastewater with biofilter on the strength and durability of concrete
摘要
In the construction industry, there is a growing interest in replacing conventional materials in concrete production by exploring new alternative substitutes. This research evaluates the influence of using treated wastewater from wastewater treatment plants (WWTP) and water purified through an artisanal biofilter (ABF) on the mechanical and durability properties of concrete. A methodology was employed that replaces potable water with WWTP and ABF water at 50 and 100% by weight. The results, compared to standard concrete, showed that fresh concrete exhibited a temperature range of 26 to 27.5 °C, a 7.5% decrease in workability, a density range of 2267 to 2363 kg/m3, and an air content between 0.6% and 1.0%. Regarding mechanical properties, concrete made with 100% biofilter-treated wastewater showed significant improvements: compressive strength increased by 11.35%, and flexural strength increased by 11.08%. In terms of durability, the experimental concrete presented a higher risk of corrosion due to chloride ion penetration but demonstrated significant improvements in permeability and wear resistance. Specifically, concrete with 50% ABF water showed a 38.42% reduction in permeability and a 24.79% decrease in abrasion wear. These findings demonstrate that the use of biofilter-treated water is a viable alternative in concrete production, not only for its ability to enhance mechanical strength but also for its improvements in durability due to reduced permeability and wear. The novelty of this study lies in the use of handmade water purification systems in construction applications, promoting more sustainable practices and reducing reliance on conventional water resources. This approach has significant practical implications for sustainable construction, as it leverages non-conventional resources and reduces the environmental impact associated with concrete production.