Sodium Bentonite Geosynthetic Clay Liner 4000g/㎡ Waterproof Blanket for Water Conservancy Projects

Price Negotiable

Price: 0.83USD~2.75USD per sqm

MOQ: 180㎡

Delivery Time: 30 days

Brand: JianYi

Product Description

Repairable and Durable Sodium Bentonite Geosynthetic Clay Liner

Sodium bentonite waterproof blanket (GCL) is an advanced geosynthetic material engineered for superior seepage prevention in various construction applications. Composed of graded natural sodium bentonite particles with specialized admixtures, this product is manufactured by securely fixing bentonite particles between geotextile and plastic woven cloth using advanced needling technology.

Key Product Properties

High Expansion Capability: Sodium bentonite rapidly absorbs water and expands to form a dense gel, effectively sealing seepage channels and providing reliable waterproof protection
Easy Installation: Features convenient construction with short project timelines, unaffected by temperature variations, offering strong self-healing properties, compact size, lightweight design, and high internal shear and tensile strength
Long-Term Durability: Made from natural inorganic materials that resist aging and corrosion, ensuring permanent waterproof performance even under changing environmental conditions

Application Areas

Water Conservancy: Seepage prevention for reservoirs, channels, and river projects
Environmental Protection: Base treatment and capping systems for landfills
Transportation Infrastructure: Seepage control for highways, railways, and related traffic projects
Building Construction: Waterproofing for basements, subways, tunnels, underground passages, and other subterranean structures
Landscape Engineering: Seepage prevention for artificial lakes, water features, and ecological landscape projects

Standard Specifications

Unit Weight: ≥4000g/㎡ (customization available)

Width: 4m~6m

Roll Length: Customizable to project requirements

Technical Specifications (JG/T 193-2006)

Parameter	GCL-NP (Needle Punched)	GCL-OF (Needle Punched & Cocoon)	GCL-AH (Viscose Process)
Unit Weight (g/㎡)	≥4000	≥4000	≥4000
Bentonite Swell Index (ml/2g)	≥24	≥24	≥24
Blue Clay (g/100g)	≥30	≥30	≥30
Tensile Strength (N/mm)	≥600	≥700	≥600
Elongation At Max Load (%)	≥10	≥10	≥8
Peel Strength (N/100mm)	≥40 (No-woven & Woven)	≥40 (No-woven & Woven) ≥30 (PE Geomembrane & No-woven)	-
Permeability Coefficient (m/s)	≤5.0×10⁻¹¹	≤5.0×10⁻¹²	≤1.0×10⁻¹²
Hydraulic Pressure Resistance	0.4MPa, 1h, No Leakage	0.6MPa, 1h, No Leakage	0.6MPa, 1h, No Leakage
Fluid Loss (m/L)	≤18	≤18	≤18
Bentonite Durability (mL/2g)	≥20	≥20	≥20