Geonets are discernibly stiffer than geotextiles and have relatively large voids within the material.Methods of production vary but include extrusion, bonding or interlacing.

They can be produced from nearly all polymeric materials. These are used to strengthen fill materials in geotechnical applications. They provide increased shear strength between soil strata interfaces.

Their tensile strength can prevent or decrease the degree of differential settlement in some applications by transmitting the load over a broader area of soil thereby diminishing the vertical stress in the soil.

Geonets is a high-density polyethylene (HDPE) geonet. The geonet is made with 2 overcrossed strands at 60º, whose geometry create channels with a high flow capacity, also under pressure and at very low gradients.

Geonets Functions

1. DRAINAGE: Landfill capping, new landfills, water reservoirs, horizontal drainage in embankments and platforms of roads, railways, trams and other trafficked areas, retaining structures, bridges, foundations, basements, canals, cut and cover tunnels, tunnels and other underground structures, gardens and sport fields.

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CHARACTERISTICS	VALUE	UNIT	STANDARD
Geonet Drainage
Polymer	High - density polyethylene (HDPE)
Thickness at 20 kPa / 200 kPa	6,2 / 5,5	mm	EN 964
Thickness reduction due to creeping (1)	<3	%	EN 1897
Mass per unit area	740	g/m2	EN 965
Peak tensile strength MD / CD	8,2 / 2,5	kN/m	ISO 10319
Elongation at break, MD / CD	20 / 90	%	ISO 10319
Crushing Resistance	>1.000	kPa	ASTM 1621
Flow capacity in their plane, MD		I/m·s	ISO 12958 (2)
i=1,0 0 = 20 kPa 0 = 50 kPa 0 = 200 kPa 0 = 500 kPa i=0,1 0 = 20 kPa 0 = 50 kPa 0 = 200 kPa 0 = 500 kPa	2,75 2,42 1,95 1,10 0,63 0,53 0,38 0,23