Bentonite waterproof blanket (GCL)
Bentonite waterproof blanket (GCL)
Bentonite waterproof blanket has the following characteristics:

1. Excellent waterproof and anti-seepage performance: the anti-seepage hydrostatic pressure can reach more than 1.0MPa, and the permeability coefficient is 5×10-9cm/s.

2. Good durability: sodium-based bentonite is a natural inorganic material, which will not undergo aging reaction and will not have adverse effects on the environment. It is an environmentally friendly material.

3. It has all the characteristics of geotextile materials: such as separation, reinforcement, protection, filtration, etc. The construction is simple and not limited by the construction environment temperature. It can also be constructed below 0℃.

4. Easy to repair: After the waterproof construction is completed, if the waterproof layer is accidentally damaged, a simple repair can restore the original waterproof performance.

5. High performance-price ratio: wide range of uses.

6. The product width can reach 6 meters: matching the specifications of international geotextiles (membranes), greatly improving construction efficiency.

7. Not affected by temperature: it will not break brittlely under cold climate conditions.

8. Good integration performance: Sodium-based bentonite has a 20-28 times expansion capacity when in contact with water. Even if the concrete structure vibrates and settles, the bentonite in the GCL can repair cracks on the concrete surface within 2mm.

9. Green and environmentally friendly: Bentonite is a natural inorganic material, harmless and non-toxic to the human body, and has no special impact on the environment.

Bentonite waterproof blanket (GCL)

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FREQUENTLY ASKED QUESTIONS

What material is bentonite waterproof blanket made of?

Bentonite waterproof blanket is mainly composed of natural sodium-based bentonite particles, geotextiles and geomembranes.

What is its waterproof principle?

Bentonite swells when it meets water to form a uniform colloidal waterproof layer, which can effectively prevent water penetration.

What projects is it suitable for?

It is suitable for various waterproof projects such as landfills, artificial lakes, basements, tunnels, and water conservancy projects.

How long is the service life of bentonite waterproof blanket?

Under normal use and maintenance, it can generally reach several decades. However, the specific life span will be affected by environmental conditions, construction quality and other factors.

What projects is it suitable for?

It is suitable for various waterproof projects such as landfills, artificial lakes, basements, tunnels, and water conservancy projects.

How long is the service life of bentonite waterproof blanket?

Under normal use and maintenance, it can generally reach several decades. However, the specific life span will be affected by environmental conditions, construction quality and other factors.

BENEFITS & FEATURES

Quality product
Competitive pricing
Customized solutions
Fast delivery
General Service
Environmental friendly

SPECIFICATIONS

Projects/ Technical data

Specifications

GCL-NP

GCL-OF

GCL-AH
Weight per unit area(g/m2)

≥4000g/m2

Bentonie swell index(ml/2g)

≥24

≥24

≥24

Ethylene blue absorption(g/100g)≥30

≥30

≥30

Tensile strength (N/100mm)

≥600

≥700

≥600

Racking strength(N/100mm)

(for nonwovwn and woven fabric)

≥40

≥40

Racking strength(N/100mm)

(for HDPE films and nonwoven fabric)


≥30

Permeability(m/s)

≤5.0x110-11

≤5.0x110-11


anti-static water pressur

0.4Mpa,1h,

not seepage

0.6Mpa,1h,not seepage

filtration loss (ml)

≤18

≤18

≤18

Bentonite durability (ml/2g)

≥20

≥20