Papua New Guinea Composite Drainage Net Has Good Hydraulic Conductivity for Water Drainage Building Structures

Composite Drainage Net is a new type of drainage geosynthetic product, it is made from three-dimension drainage net bonding to needle punched non woven geotextile by one or two sides. Three dimensional composites drainage network consists of a tri-dimension thick vertical rib, and a inclined rip on the top and bottom.

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Papua New GuineaComposite Drainage Net

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Product Description

Introduction

Composite drainage net is a new type of drainage geotechnical material. It is made of high-density polyethylene (HDPE) through a special extrusion molding process and has a special three-layer structure. The ribs in the middle are rigid and arranged longitudinally to form a drainage channel. The ribs arranged cross-wise up and down form a support to prevent the geotextile from being embedded in the drainage channel, and maintain high drainage performance even under high loads. The double-sided bonding water-permeable geotextile is used in combination, and has the comprehensive performance of "reverse filtration-drainage-ventilation-protection", and is currently the most ideal drainage material.

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Applications

1. Tunnel drainage.
2. Landfill drainage.
3. Railway drainage.
4. Retaining walls drainage.
5. Highway roadbed drainage.
6. Underground structure drainage.
7. Garden and playground drainage.

Working Drawing

Specifications

Property	unit		BC50/D200	BC63/D200	BC70/D200	BC80/D200	Test Standard
Geocomposite specification
Hydraulic conductivity(MD)	M²/s	2.8×10-3		3.2×10-3	4.0×10²	5×10-3	ASTM D4716
Puncture	KN/m	0.17		0.17	0.17	0.17	ASTM D7005
Resistance	KN/m	0.17		0.17	0.17	0.17	ASTM D7005
Core Material Geonet Specification
Thickness	mm	6.3		7.0	8.0	9.0	ASTM D5199
Density	g/cm³	0.94		0.94	0.94	0.94	ASTM D1505
Carbon Black Content	%	2		2	2	2	ASTM D1603
Tensile strength (MD)	KN/m	8.0		10.0	12.0	14.0	ASTM D7179
Geotextile Specification
Unit weight	g/m2	200		200	200	200	200
Geotextile type		Continuous filament non-woven geotextile