Scope of application and matters needing attention of waterproof carpet

I believe everyone is very familiar with carpets. What I want to tell you today is waterproof carpet. What is a waterproof carpet? Waterproof blanket is a new type of environmental protection and ecological composite impervious material, which has been widely used in civil engineering such as water conservancy, environmental protection, transportation, railway and civil aviation. The main reason why bentonite waterproof blanket has ecological seepage control function is that sodium bentonite particles in bentonite waterproof blanket are inorganic salts, which have no effect on ecology and have excellent waterproof effect.

Waterproof carpet principle

Bentonite can form a uniform colloid system because of its swelling property when it meets water, and its swelling is only about 3 times of its own volume, while sodium bentonite absorbs 5 times of its own weight when it meets water, and its swelling can reach more than 15- 17 times.

Characteristics of waterproof carpet

1, compactness: when the thickness is about 3mm, its water permeability is below 5×10 ˉ11m/s, which is equivalent to the compactness of 30cm clay with a thickness of 100, and it has strong self-water protection performance.

2, waterproof performance: even if the surrounding environment changes for a long time, it will not age and corrode.

3. Simple structure: no need for heating and pasting. Just use bentonite powder and nails, washers, etc. Used for connection and fixation. It is the shortest construction period.

4, unaffected: it will not be brittle in cold climate.

5. Combination of waterproof materials and objects: Even if the structure vibrates and settles, bentonite can repair cracks within 2mm.

6. Environmental protection: natural inorganic materials with good environmental protection performance.

Characteristics of waterproof carpet products

High cost performance, wide use and improved construction efficiency. Scope of application and applicable conditions are applicable to municipal (landfill), water conservancy, environmental protection, artificial lakes and underground waterproofing and seepage control projects of buildings.

Applicable environment of waterproof carpet

1, municipal engineering, subway, underground engineering of buildings, seepage prevention of roof reservoir.

2, environmental sanitation, domestic waste landfill, sewage treatment plant, industrial waste.

3. Water conservancy, seepage prevention, plugging and reinforcement of rivers, lakes and reservoir dams.

4. The artificial lake golf course pond in the garden is impervious.

5, petrochemical, mining, agriculture and other fields of engineering.

Precautions for waterproof carpet

1. It was erected overhead, and the bentonite composite waterproof pad (GCL) was used up on the same day.

2. In the process of construction, the completed process shall be properly protected and shall not be artificially damaged.

3. Try to avoid wearing spikes and high heels and stepping on the floor;

Vehicles and other machinery shall not crush bentonite composite waterproof pad (GCL).

In the construction of composite lining in 4.GM/GCL, the construction of HDPE film or clay protective layer can't be completed on the same day, so it needs to be covered with GCL to prevent rain and snow from hydration and exposure.

5. After acceptance, backfill with soil, sand or stone particles with a specific gravity greater than 2.0. Backfill soil shall not contain gravel with a particle size greater than 10mm, and the thickness shall not be less than 30cm.