Porous concrete is a type of concrete designed to allow water to pass through it, reducing surface runoff. It is made with larger aggregates and a higher water-to-cement ratio, creating voids that enable drainage. This feature makes it ideal for applications like driveways, parking lots, and walkways, where managing stormwater is essential. The permeability of porous concrete helps recharge groundwater and minimizes flooding during heavy rain. Additionally, it can improve the durability of surfaces by reducing the risk of freeze-thaw damage. Overall, porous concrete is an environmentally friendly option for urban development and landscaping.