The Mirafi RSi-series is a high-performance woven geotextile engineered for roadway subgrade reinforcement.

These fabrics combine separation, filtration, and reinforcement in a single layer, using high tensile strength and soil confinement to stabilize weak subgrades and extend pavement life. They are specified for reinforced base courses under roads and heavily loaded surfaces.

The RSi-series is chosen when a roadway must perform over difficult soils, reducing base thickness requirements and resisting the deformation that leads to premature pavement failure.