Bentonite Geosynthetic Clay Liners For Tunnels Construction Anti Seepage Waterproof
Bentonite Geosynthetic Clay Liners For Basements And Tunnels Construction Anti Seepage Waterproof
Quick Detail:
component: bentonite, HDPE geomembrane, geotextile
size: 50*5m
function: antiseepage, reinforce, protect
application: basement, tunnel, artificial lake, swimming pool, golf course ponds, stormwater management ponds, recreational ponds, landfills cap closures, base liners, groundwater protection cover, environmental protection barrier under roads and railway, secondary containment above and ground tanks
Product Description:
Geosynthetic Clay Liners (GCL) are high-performance needle punched environmental reinforced composites which combine two durable geotextile outer layers with a uniform core of natural sodium bentonite clay to form a hydraulic barrier. Fibers from the non-woven geotextile are needle punched through the layer of bentonite and incorporated into the other geotextile (either a woven or non-woven). when hydrated under a confining load, the bentonite swells to form a low permeability clay layer with the equivalent hydraulic protection of several feet of compacted clay.
Our bentonite waterproof blanket can be constructed under extreme low temperature (-20℃) where the traditional waterproof material cannot be constructed, Because bentonite is inorganic material, its durability is better than that of organic waterproof material.
Sodium bentonite-based GCLs provide an excellent hydraulic barrier in applications where leachate in direct contact with the GCL is relatively non-aggressive, or in composite lining applications where the GCL is overlain by a thermally welded geomembrane and hydrates from uptake of innocuous moisture from the subgrade.
Installing notes:
1, bentonite waterproof geosynthetic clay liners construction, foundation should be checked and inspected, the foundation should be rammed flat, no potholes and water, no gravels, no roots and other sharp objects.
2, bentonite waterproof geosynthetic clay liners in the process of handling and construction should be to avoid vibration and impact, to avoid the blanket body having a large degree of bending.
3. After the installing and acceptance of GCL, backfill shall be carried out as soon as possible. If it is in conjunction with the use of HDPE geomembrane, which shall be installed and welded in time to prevent it from being wet or broken by rain.
Technical Parameter:
| No. | Item | Technical Index | |||
| GCL-NP | GCL-OF | GCL-AH | |||
| 1 | GCL (g/㎡) | ≥4000 and not less than the specified value | ≥4000 and not less than the specified value | ≥4000 and not less than the specified value | |
| 2 | Swelling Index of Bentonite (ml/2g) | ≥24 | ≥24 | ≥24 | |
| 3 | Absorption of Blue ( g/100g) | ≥30 | ≥30 | ≥30 | |
| 4 | Tensile Strength (N/100mm) | ≥600 | ≥700 | ≥600 | |
| 5 | Elongation at Maximum Load % | ≥10 | ≥10 | ≥8 | |
| 6 | Peel Strength(N/100mm) | Non Woven and Woven Fabrics | ≥40 | ≥40 | / |
| PE Film and Non Woven Fabrics | / | ≥30 | / | ||
| 7 | Permeability Coefficient (m/s) | ≤ 5.0x10^-11 | ≤ 5.0x10^-12 | ≤ 1.0x10^-12 | |
| 8 | Hydrostatic Pressure Resistance | 0.4MPa, 1h, no seepage | 0.6MPa, 1h, no seepage | 0.6MPa, 1h, no seepage | |
| 9 | Filtration Loss (ml) | ≤ 18 | ≤ 18 | ≤ 18 | |
| 10 | Durability of Bentonite | ≥20 | ≥20 | ≥20 | |
Application:
- Canals, stormwater impoundments and wetlands
- Secondary containment
- Highway and civil
- Landfill liners
- Landfill caps
- Mining
- Ponds
Advantage:
- An economic and environmentally sound alternative to synthetic liners or to bituminous products.
- Dense and slim with high bond and shear strength.
- Superior to conventional compacted/puddled clay lining
- High puncture and tear resistance - the bentonite clay has a high swelling capacity and low permeability offering good system integrity.
- Self-sealing.
- Long-term protection against ground water seepage
Factory Advantage:
Production facilities are CodeMark and Branz accredited.
All products are fully guaranteed from manufacturing defects.
When working in confined spaces, granulated bentonite clay liners offer Occupational Health and Safety benefits compared to powdered bentonite liners.
The black woven layer facilitates visual checking of the stitching quality when the geosynthetic clay liner is being laid.
Available in grades from 3500g/m2 to 5500g/m2 with or without a bonded PE membrane.
Rolled on strong corrugated HDPE cores.
Available in roll widths from 1.65m to 5.8m.
Production capacity of 7.5 million m2/year.
Direct shipping to major Australian ports, thus saving transport costs.
Package:
products are well be packed as customers' requirement, packed in roller with woven bags and good belt, and we gurantee product be good when customer receive.
Delivery:
all products will be delivered in time according to customer's requirement. 20GP Container can load around 17.5 tons, 40HQ 24.5 tons. It can be shipped in 7 days.
Supply Ability:
25.5 tons per day.
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