Evaluating the Role of Pervious Concrete in Sustainable Urban Water Management and Flood Control

Water scarcity and environmental challenges have heightened the need for sustainable construction materials like recycled concrete. This study investigates the effects of microsilica on the compressive strength and permeability of recycled concrete, focusing on mix designs with ۵% and ۱۰% microsilica content. Laboratory tests were conducted on cubic samples cured for ۷, ۱۴, and ۲۸ days to evaluate these properties. Results indicate that samples with ۱۰% microsilica exhibit higher compressive strength due to the densification of the concrete matrix, particularly at later curing stages. However, the permeability of these samples is significantly reduced, highlighting microsilica's role in enhancing durability by minimizing water ingress pathways. While both mix designs demonstrate improved mechanical properties with increased microsilica content, the differences in permeability and compressive strength emphasize the need for tailored designs to balance strength and durability. The findings underscore the potential of microsilica to optimize the performance of recycled concrete for environmentally sustainable construction, particularly in applications requiring enhanced durability and reduced permeability, such as hydraulic structures and urban infrastructure.

کلیدواژه ها:

Recycled concrete ، Microsilica ، Compressive strength ، Permeability