What material is specified for manufacturing geocells?

The base material should be virgin High-Density Polyethylene (HDPE) conforming to IS 7328, as per Clause 4.

How is the strength of the cell junction specified?

The cell junction strength is specified as 'Seam Peel Strength', with minimum values for three different types given in Table 2.

What is the minimum thickness for a textured geocell sheet?

The minimum sheet thickness for textured geocells is 1.50 mm, as per Table 1.

What are the durability requirements for geocells?

Key durability requirements include resistance to UV degradation and oxidation, checked via tests for carbon black content and Oxidative Induction Time (OIT) as specified in Table 3.

IS 16670

: 2018

Geosynthetics - Geocells - Specification

CurrentSpecializedSpecificationBIMGeotechnical · Geosynthetics and Ground Improvement

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This standard specifies the requirements for geocells used for ground improvement, made from materials like High-Density Polyethylene (HDPE). It covers material composition, physical dimensions (cell depth, thickness), mechanical properties (seam strength), and durability characteristics to ensure performance in geotechnical applications.

Specifies requirements for geocells used in soil stabilization and confinement applications.

Quick Reference Values

Minimum Sheet Thickness (Smooth)1.25 mm

Minimum Sheet Thickness (Textured)1.50 mm

Carbon Black Content by Mass2.0 to 3.0 percent

Minimum Seam Peel Strength (Type 1)1070 N

Minimum Seam Peel Strength (Type 2)1425 N

Minimum Seam Peel Strength (Type 3)2050 N

Minimum Stress Crack Resistance500 h

Practical Notes

Seam peel strength is a critical performance parameter; ensure the specified type (Type 1, 2, or 3) matches the design requirements for confinement.

Verify the UV stability properties (like carbon black content) if the geocells will have prolonged exposure to sunlight during construction.

The choice between smooth and textured surfaces depends on the required frictional interaction with the infill soil; textured cells offer higher friction.