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Strengthening soil Composite Geogrid

Composite geogrid is a high-strength, high-stability geomaterial, mainly composed of polypropylene and glass fibre.

Commodity name： Strengthening soil Composite Geogrid

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Description

Introduction

Composite geogrid is a high-strength, high-stability geomaterial, mainly composed of polypropylene and glass fibre. With excellent tensile strength and rigidity, it can effectively enhance the stability and bearing capacity of soil.

Biaxial geogrid composite is a geocomposite made of bi-axial polypropylene (PP) geogrid, heat bonded to a long fiber non-woven polyester geotextile that acts as a filter and soil separator. This geogrid is manufactured using a punching and drawing process whereby the polypropylene sheet is stretched in two directions, machine (longitudinal) and cross-machine (transverse). The result is a monolithic and isotropic geogrid with thick and wide ribs, thick integral nodes, and uniform square apertures. Engineered to be mechanically and chemically stable in aggressive soil environments, this geocomposite allows sub-base drainage to help maintain structural stability, and is very effective in keeping expensive imported material from being contaminated by migration of fines from the saturated base soils.

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Applications

Composite geogrid is widely used in roads, railways, embankments, rivers, harbours and other projects to improve the overall performance of the soil and to prevent soil erosion and landslides.

Working Drawing

Strengthening soil: Composite geogrids can increase the tensile strength, shear strength, and erosion resistance of soil, and improve the overall stability and bearing capacity of soil.
Distributed load: Through force transmission, composite geogrids can disperse the load into the soil, reducing settlement and deformation of the soil.
Preventing landslides and surface erosion: Composite geogrids can be applied to soil structures such as slopes and embankments to increase the soil's anti slip ability and prevent landslides from occurring. At the same time, it can also effectively resist surface erosion such as wind erosion, water erosion, and wave impact.
Permeable drainage and anti-seepage: Composite geogrids have a certain degree of permeability, which can promote the drainage of water inside the soil and reduce the risk of soil liquefaction and leakage.

Specifications

Geogrid Properties	Test Method	Unit	MD	TD
Polymer		一	PP	一
Minimum Carbon Black	ASTM D 4218	%	2	一
Tensile Strength	ASTM D 6637	kN/m	30	30
Tensile Strength @2%Strain	ASTM D 6637	kN/m	10.5	10.5
Tensile Strength @5%Strain	ASTM D 6637	kN/m	21	21
Elongation	ASTM D 6637	%	13	13
Geotextile properties
Polymer			PET	一
Mass per unit area	ASTM D 5261	g/m2	200	一
Tensile Strength	ASTM D 4595	kN/m	13	13
Tensile Enlongation	ASTM D 4595	%	50	50
CBR Puncture Strength	ASTM D 6241	N	2300	一
Apparent Opening Size	ASTM D 4751	mm	0.11
Roll Dimension
Roll Width		M	3.9/5.9	一
Roll Length		m	50