waterproofing material Natural sodium bentonite Geosynthetic Clay Liner (GCL) Our GCL is composed of 3 layers, the upper layer is nonwoven geotextile, while the lower layer is woven geotextile, natural sodium bentonite fills the gap between geotextile layers. The application with natural sodium bentonite can enlong the using life of construction. Our GCL creates a new green and environmental building material. Technical Parameter:

Inspection Item	Testing Procedure	Technical Index
Bentonite mass for unit area	ASTMD5993	≥5.5kg/m2
Expansion coefficient	ASTMD5890	≥ 25mL/2g
Low temperature ductility	ASTMD5898	No impact at -35°C
Thickness	ASTMD5892	≥6.4mm
Tensile strength	ASTMD4632	≥540N
Peel strength of concrete face	ASTMD4632	≥3.0 KN/ m2
Peel strength	ASTMD4632	≥68N
Indicated flow	ASTMD5887	≤1 × 10-8m3/m2/sec
Hydrostatic pressure resistance	ASTMD5888	≥70
Permeability	ASTMD5887	≤5 × 10-12cm/sec
Extension rate	ASTMD5896	≥20
Puncture strength	ASTMD5894	≥635N

Our product advantage: 1. Environment friendly 2. Long-lasting waterproof performance 3. Easy application Renzhong Advantage1. Excellent raw material We choose the best natural sodium bentonite to guarantee our good quality. 2. Competitive price Our advanced production line, quality control and analysis system and convenient transportation to shanghai port help us the reduce cost, so that we can provide you competitive price. 3. First-class service and product “Quality first, customer is god. ”is our doctrine. We will serve for our customer with all our effort. Application:

· Landfills	· Mud Pits
· Lagoons	· Canals
· Bund Lining	· Tank Lining
· Fish Farm Lining	· Roof Lining
· Waste Water Pits	· Ponds and Reservoirs
· Dams	· Floating Covers
· Vertical Cutoff Walls	· Hydraulic Structure
· Basement Lining	· Drip Irrigation Ponds

GCL for civil engineering

Workshop Laboratory Equipment Projects

Certificate

construction picture