What are Geonets, and how are they used in road engineering?

A: Geonet in road engineering are three-dimensional synthetic drainage materials used to enhance the performance of roads. They are typically made from high-density polyethylene (HDPE) or polypropylene and feature a honeycomb-like structure. In road engineering, Geonets are primarily used to: Improve Drainage: They effectively channel water away from the roadbed, preventing waterlogging and associated issues like frost heave and soil erosion. Enhance Soil Stabilization: Geonets reinforce the underlying soil layers, improving their load-bearing capacity and preventing settlement. * Separate Layers: They act as a barrier between different layers of the roadbed, preventing intermixing and ensuring the proper functioning of each layer.