Guidelines for the Design and ConstructLow-Volume Volume Rural Roads Using Jute Geotextiles
2019 Edition

IRC SP 126 does not specify exact types or properties of jute geotextiles for rural roads. Nonetheless, standard engineering practices suggest using woven jute fabrics for strength and permeability and non-woven jute mats for erosion control and soil reinforcement. Typical properties include tensile strength ranging from 10 to 20 kN/m, thickness between 2 and 5 mm, high water permeability for drainage, controlled biodegradability lasting 1 to 3 years, and weight from 300 to 600 g/m². These geotextiles serve functions such as subgrade separation, facilitating drainage, erosion protection, and soil reinforcement. For detailed specifications, refer to IRC:SP:138-2023 or BIS standards on natural fiber geotextiles.

Jute geotextiles improve soil stabilization and drainage by reinforcing soil structure, enhancing cohesion and tensile strength, which reduces deformation and rutting. They act as filtration media, allowing water to drain while retaining fine soil particles to prevent clogging. Additionally, they protect surface soils from erosion caused by water flow or traffic. Being biodegradable, jute geotextiles decompose naturally, enriching the soil without adverse environmental effects. These properties contribute to better load distribution, reduced maintenance needs, and improved drainage preventing waterlogging and subgrade damage, aligning with sustainable rural road design practices.

Though IRC SP 126 does not explicitly outline installation procedures, standard recommendations include preparing a clean, level subgrade free of debris and sharp objects to prevent damage. Jute geotextile should be laid on dry or slightly moist surfaces, with rolls oriented along the road alignment and overlapped by 150 to 300 mm to ensure continuity. Secure the fabric using wooden pegs, staples, or sandbags to maintain position during backfilling. Backfill carefully without dragging to avoid tearing, and cover the geotextile within 24 to 48 hours to minimize UV exposure and premature degradation. These steps ensure effective separation, filtration, and reinforcement functions.

The use of jute geotextiles in rural roads enhances durability by reinforcing the subgrade soil, which reduces rutting and deformation from traffic. They improve moisture management by facilitating drainage and preventing water accumulation that can weaken pavement layers. As natural fibers, jute geotextiles biodegrade over time, minimizing long-term environmental impact. These factors collectively extend the service life of roads and diminish the frequency and extent of maintenance activities required, making jute geotextiles a sustainable and cost-effective solution for rural infrastructure.

Jute geotextiles provide several environmental benefits over synthetic options. Being natural fibers, they are biodegradable and decompose without leaving persistent microplastic pollution. Jute is a renewable resource cultivated with relatively low energy input and contributes to carbon sequestration. They improve soil health by enhancing aeration and moisture retention without harmful chemical leaching. Disposal of jute geotextiles is simpler and environmentally friendly, often compostable, unlike synthetic materials which may require special handling and contribute to landfill waste. These attributes make jute geotextiles a greener choice for sustainable construction.