Geosynthetic Clay Liner Specification - 4000g/square meter

Geosynthetic Clay Liner Specification

Geosynthetic Clay Liner is manufactured by three levels, including two levels of geotextile whose functions are protecting and strengthen to ensure shearing strength and tensile strength, inner content is Sodium bentonite clay. It is manufactured by nature layer silicate inorganic materials and has high expansibility and high water-absorbing capacity, when soak with low permeable capability, whose the main function is anti-seepage.

Characteristic of GCL:

A:Form high density diaphragm under hydraulic pressure, the water permeable capability equals to 100 times density degree of 30cm clay when the thickness of GCL is 3mm. It has very good self water-retention property.

B:GCL is nature inorganic material, it won't aging or corrode even after long-time or surrounding changed, so it has permanent water proofing capability.

C:GCL is nature inorganic material, which is non-poisonous and harmless to human body, so it is environment protection material.

Application Filed of GCL:

• Water storage, miniature reservoir, dam of reservoir, acequia,fish pond
• Roof garden, basement etc.
• Subway, railway, expressway, light industry, oil and metallurgy and other industry
• Maintenance, repair and reinforcement of earth works
• Environmental reform, garbage landfill, artificial lake or other landscape

  Test Item	Test Standards	Criteria
  Expansion coefficient	ASTM D 5890	≥24ml/2g
  Fluid loss	ASTM D 5891	≤18ml
  Bentonite clay weight of unit space	ASTM D 5993	≥4.8kg/sqm
  Tensile strength	ASTM D 4632	≥400N
  Peel strength	ASTM D 4632	≥65N
  Indicating flow	ASTM D 5887	≤1×10-8m3/sqm/sec
  Permeability	ASTM D 5887	≤5×10-11cm/sec
  Tensile strength after soak	ASTM D 5321	≥24KPa typical