We, Shanghai Yingfan Engineering Material Co., Ltd., is one of leading drainage geocomposite and other geosynthetics suppliers in China. We can provide various specifications of this product. Installation equipment and service also can be provided according to buyer’s requests.

Drainage Geocomposite Introduction

Drainage geocomposite is available in single‑sided and double‑sided types. Geonet core thickness ranges from 3 mm to 10 mm, with attached non‑woven geotextile from 100 gsm to 300 gsm. Non‑woven geotextile is thermally bonded to geonet core by hot‑knife process, achieving high bonding strength without reducing water transmissivity performance.

It is ideal for drainage projects requiring filtration function to prevent silt and soil‑particle clogging. The non‑woven geotextile features good frictional property for reliable bonding with geonet core. As synthetic drainage medium, drainage geocomposite can replace 1‑3 feet traditional aggregate layer, delivering stable drainage performance under various site loads and gradient conditions.

The geonet core adopts bi‑axial structure. Laid directly on ground, it works as dewatering layer, helps concrete hydrate evenly and extends road service life. It also mitigates frost‑damage impact in cold‑climate regions.

Specifications

‑ Composite weight: 500‑2000 g/m²; geonet core thickness: 3‑10 mm

‑ Roll width: 2‑6 m, max width 6 m, custom width available

‑ Roll length: 30 m / 50 m or customized, subject to rolling capacity limit

‑ Common color: black geonet core + white geotextile

Main technical indexes for typical grades:

1. Composite weight(g/m²): ≥1200 / ≥1400 / ≥1600 / ≥1800 / ≥2000

2. Composite thickness(mm): ≥6.0 / ≥7.0 / ≥8.0 / ≥9.0 / ≥10.0

3. Composite longitudinal tensile strength(kN/m): ≥16.0

4. Composite flow‑rate(m²/s): ≥1.2×10⁻⁴

5. Peel strength between geonet core and geotextile(kN/m): ≥0.3

6. Geonet core thickness(mm): ≥5.0 / ≥5.0 / ≥6.0 / ≥7.0 / ≥8.0

7. Geonet core tensile strength(kN/m): ≥13.0 / ≥15.0 / ≥15.0 / ≥15.0 / ≥15.0

8. Geotextile weight(g/m²): ≥200

9. Geotextile permeability coefficient(cm/s): ≥0.3

10. Standard roll width: 2.1 m; Standard roll length: 30 m

Features and Benefits

1. Excellent drainage performance; can replace or cooperate with traditional sand‑gravel drainage layers

2. Resist long‑term high‑pressure load

3. High tensile strength and shear strength

4. Reduce geotextile embedding into geonet core, guarantee long‑term stable hydraulic conductivity

5. Outstanding chemical corrosion resistance

Application

‑ Cover‑soil drainage protection for man‑made landfill structures

‑ Embankment slope drainage and protection

‑ Landfill closure & containment projects

‑ Pond lining for rain‑water collection and chemical‑waste pools

Project Cases

1. Shanghai Songjiang Landfill Closure Project (supply+installation), Mar 2013, Spec:200g/5mm/200g, Qty:73200 ㎡

2. Nanning Chengnan Domestic Waste Landfill Partial Closure Project (material supply), Jul 2014, Spec:200g/6mm/200g, Qty:57000 ㎡

3. Yangshan Landfill Containment Project (supply+installation), 2015‑2017, Spec:200g/6.3mm/200g, Qty:99000 ㎡

4. Shanghai Qingpu Landfill Closure Project (supply+installation), Jul 2017, Spec:200g/6.3mm/200g, Qty:45000 ㎡

5. Guangxi Nanguo Copper Industry Rain‑water & Acid‑Pond Lining Project, Jul 2017, Spec:200g/7mm/200g, Qty:22000 ㎡

FAQ

Q: What is your sample policy?

A: Free samples are available. For first‑time inquiries, we can provide free samples together with free courier freight.

Q: What is your MOQ?

A: 2000 m² for in‑stock drainage geocomposite; 5000 m² for out‑of‑stock regular‑spec orders.

Q: Can you make customized products?

A: Yes, custom orders are acceptable as long as within our technical capability.

Our company has rich industry experience. We have supplied various drainage materials and professional installation service for numerous domestic and overseas projects including landfills, dams, embankments and wastewater‑treatment facilities. Most clients give positive feedback on our products and services. Welcome to contact us for further details.