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Railway engineering Composite Geogrid

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

Commodity name： Railway engineering Composite Geogrid

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Description

Introduction

Composite geogrid is a high-strength, high-stability geomaterial, notably composed of polypropylene and glass fibre. With exceptional tensile electrical strength and rigidity, it can correctly embellish the steadiness and bearing achievable of soil.

Biaxial geogrid composite is a geocomposite made of bi-axial polypropylene (PP) geogrid, warmness bonded to a extended fiber non-woven polyester geotextile that acts as a filter and soil separator. This geogrid is manufactured the utilization of a punching and drawing strategy whereby the polypropylene sheet is stretched in two directions, laptop (longitudinal) and cross-machine (transverse). The supply up cease end result is a monolithic and isotropic geogrid with thick and substantial ribs, thick quintessential nodes, and uniform rectangular apertures. Engineered to be robotically and chemically ordinary in aggressive soil environments, this geocomposite lets in sub-base drainage to resource maintain structural stability, and is very brilliant in retaining luxurious imported fabric from being contaminated with the useful resource of way of 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 make greater the tensile strength, shear strength, and erosion resistance of soil, and embellish the frequent steadiness and bearing performance of soil.
Distributed load: Through stress transmission, composite geogrids can disperse the load into the soil, decreasing contract and deformation of the soil.
Preventing landslides and ground erosion: Composite geogrids can be utilized to soil constructions such as slopes and embankments to extend the soil's anti slip conceivable and provide up landslides from occurring. At the equal time, it can in addition efficiently stand up to floor erosion such as wind erosion, water erosion, and wave impact.
Permeable drainage and anti-seepage: Composite geogrids have a first-rate diploma of permeability, which can promote the drainage of water indoors the soil and reduce the hazard 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