1. Product Overview

The water-swelling bentonite blanket is a self-sealing geosynthetic material made from natural sodium bentonite clay. When exposed to water, the bentonite absorbs moisture and expands significantly, creating a watertight barrier. Encased between layers of geotextile or geomembrane, it is widely used for waterproofing and containment applications in landfills, reservoirs, and environmental engineering projects.

2. Product Features

• Water-Activated Expansion: Swells upon contact with water to create a self-healing, impermeable barrier.
• Exceptional Waterproofing: Effectively prevents leakage and seepage in challenging conditions.
• Durability and Resistance: Resists punctures, tearing, and chemical exposure, ensuring long-term performance.
• Eco-Friendly Material: Made from natural bentonite, providing sustainable and environmentally safe solutions.
• Easy Installation: Lightweight and flexible, simplifying transportation and application.

3. Product Specifications

• Material: Natural sodium bentonite with geotextile or geomembrane layers
• Thickness: 5mm to 15mm (customizable based on project requirements)
• Weight: 4000g/m² to 6500g/m²
• Width: 1m to 6m
• Roll Length: Standard 30m to 50m rolls, customizable upon request
• Permeability: ≤ 5×10⁻¹² m/s
• Compliance: Meets ISO, ASTM, and other international geosynthetics standards

4. Application Areas

• Landfill Liner Systems: Provides a reliable barrier to prevent leachate leakage.
• Reservoirs and Canals: Ensures waterproofing in water storage and distribution systems.
• Mining and Industrial Sites: Protects against contamination from waste or tailings.
• Environmental Remediation: Suitable for soil and groundwater containment and cleanup.
• Ponds and Lagoons: Waterproofs aquaculture ponds, decorative water features, and lagoons.

5. Installation Guidelines

• Surface Preparation: Ensure a clean, smooth, and compacted base to prevent damage to the blanket.
• Placement: Roll out the water-swelling bentonite blanket and position it as per the project layout.
• Overlap: Maintain a minimum overlap of 30 cm between adjacent sections for effective sealing.
• Anchoring: Use anchor trenches or weights to secure the blanket and prevent movement during installation.
• Inspection: Check for wrinkles, alignment, or damage before covering with backfill or protective layers.