läbilaskevõrk

A läbilaskevõrk, often translated as permeable pavement or porous pavement, is a type of construction material used for surfaces like roads, walkways, and parking lots. Its primary characteristic is its ability to allow water to pass through it. Unlike traditional impermeable surfaces, which shed rainwater and contribute to stormwater runoff, läbilaskevõrk is designed with a porous structure.

This porosity is typically achieved through the use of specialized aggregates and binders that create interconnected voids within the pavement. When rain falls, water can infiltrate the surface and seep into the underlying soil layers. This process helps to reduce surface water accumulation, mitigate flooding, and replenish groundwater.

The benefits of läbilaskevõrk extend beyond stormwater management. By reducing runoff, it can also decrease the amount of pollutants washed into waterways. Furthermore, it can help to lower the urban heat island effect by allowing evaporation to occur from the surface and within the pavement structure.

Common types of läbilaskevõrk include porous asphalt, pervious concrete, and permeable interlocking concrete pavers. The choice of material depends on factors such as the intended application, expected traffic load, and local environmental conditions. While offering environmental advantages, läbilaskevõrk may require specific maintenance to ensure its long-term performance and permeability.