Pervious Concrete
摘要
Pervious concrete, also known as porous or permeable concrete, is engineered with a high porosity to allow water to pass through it, thereby facilitating groundwater recharge and reducing stormwater runoff. This is achieved by a specialized mix design that omits fine aggregates, resulting in a network of interconnected voids. The primary mechanism of pervious concrete involves the direct percolation of water through these voids, which significantly reduces surface runoff and enhances the management of stormwater. This unique characteristic is particularly beneficial under severe environmental conditions where traditional concrete surfaces contribute to waterlogging and increased urban heat island effects. However, the open pore structure of pervious concrete can lead to lower compressive strength and reduced durability if not properly maintained, making it less suitable for high-traffic areas or structural applications.