Landfill Bentonite Waterproof Blanket
Landfill Bentonite Waterproof Blanket is a granular material that prevents water leakage in landfills, underground garages, roof garden and oil depots. It can also be used for wastewater treatment, domestic waste disposal and other applications.
GCL is made of two layers of composite plastic flat silk geotextile and non-woven fabric, filled with high expansion sodium bentonite. The hydration of the bentonite causes it to swell and form an impermeable barrier that can prevent water leakage.
Waterproofing
The waterproof blanket is filled with high expansive sodium bentonite in a special composite geotextile and nonwoven fabric. The bentonite is fixed in the soil impervious mat by prick method, so the bentonite particles can not flow unidirectionally, and a uniform high density rubber waterproof layer is formed in the cushion, effectively preventing water leakage. It is used in artificial lake water, landfill, underground garage, roof garden, pool, oil depot and chemical yards to prevent the leakage of waste water.
Geosynthetic Clay Liner (GCL) is a new type of geosynthetic material that has replaced the conventional compacted clay liner (CBL) as the liner material for municipal solid waste landfills (MSW landfills). The GCL consists of a thin layer of granular bentonite (GB) sandwiched between two layers of geotextiles. The GB has large inter-granular voids in its natural air-dry state, but once hydrated, the GB swells to seal the hydraulic pathways and prevent leachate migration.
The GCL is easy to handle, load and install, and it has a good waterproof (seepage) performance. Compared with the CBL, it has the following advantages: 1. Simple construction and short time limit for a project. 2. Not influenced by air temperature. 3. Quality guaranteed for 3 years. 4. Economical and environmentally friendly. 5. Not contaminated with sewage and chemicals. 6. No need for additional coatings or chemicals to make it waterproof.
Sealing
The high swelling capabilities of the landfill bentonite blanket allow it to seal any gaps created during construction. In addition, the saturated GCL creates a hydraulic barrier due to its very low hydraulic conductivity (Ks 10-9 m/s)1,2,3,4. In landfill applications, the self-sealing properties of the GB help to Landfill Bentonite Waterproof Blanket prevent leachate transport through the waste mass by a slow diffusion process augmented by its high sorption potential.5
In this system, the granular bentonite is encapsulated between a woven or non-woven geotextile and an integrally bonded polyethylene liner. The lining is needle-punched through both fabrics to create an interlocking composite with extremely strong mechanical properties. The geotextiles are then thermally locked to the bentonite through a proprietary process to further enhance its strength, puncture resistance and durability.
Voltex DS is a low-cost, low VOC waterproofing composite that can be installed on new and remedial projects. It is ideal for use in municipal engineering, underground engineering of subways and buildings, water conservancy, garden artificial lake building and anti-seepage projects. It can also be used in tunnels, underground garages and oil depots. Voltex DS is easy to handle and install, can be backfilled immediately, is resistant to construction related damage and inclement weather, has high shear and long term creep resistance and is compatible with all conventional construction materials. It is a great alternative to traditional organic waterproofing materials.
Drainage
The drainage capabilities of Landfill Bentonite Waterproof Blanket allow for water to be safely drained away from the landfill. This is important to maintain the integrity of the bentonite liner and reduce the risk of contaminating groundwater and surface waters. The blanket also has the ability to absorb and retain water, preventing it from seeping through the membrane or surrounding soil.
In a hydraulic state, sodium bentonite forms a high-density diaphragm with excellent impermeability performance. This means that it can be used in a variety of applications, including landfill construction, soil improvement and rehabilitation, and embankment reinforcement. The bentonite is also highly resilient, allowing it to resist extreme weather conditions without losing its waterproofing capability.
Compared to other waterproofing materials, the construction process for bentonite clay Geosynthetic clay liner products is relatively simple and quick. This saves time and money, and reduces the need for specialized equipment. In addition, bentonite clay has a long lifespan and is resistant to corrosion.
The report offers past, present and future analysis of the Bentonite Waterproof Blanket market, with forecasts until 2025. The research methodology is based on a mix of primary and secondary research, with the help of subject matter experts. The secondary research includes various sources, such as company annual reports and research papers, industrial magazines, associations findings, and government websites. The primary research includes interviews with key stakeholders and customers.
Strength
Its excellent strength capabilities make it ideal for landfill liners, where the blanket creates an impenetrable barrier to prevent leachate infiltration. The blanket also resists chemical corrosion and heat and cold, making it an incredibly durable product that can withstand harsh environmental conditions.
Sodium bentonite is an inorganic material that has excellent self-preserving water performance and can keep its waterproof properties even after prolonged contact with soil or other contaminants. Its unique ability to swell when exposed to water is useful in creating an impermeable layer that can prevent contaminant seepage. This is why it is an important component of a landfill liner system, which helps prevent leachate migration into groundwater and other environmental pollutants.
Geosynthetic Clay Liners (GCL) are composed of bentonite, a natural clay mineral with exceptional water absorbent properties, and encapsulated in high-density polyethylene (HDPE) geotextiles on either side. These layers are needle punched and thermally locked together for added strength and durability.
When handling GCL, it is important to avoid vibration and impact as much as possible to protect the blanket’s integrity. Any physical damage to the blanket should be immediately repaired, and granular bentonite or bentonite slurry should be applied to prevent the damage from shifting. It is recommended that all backfill construction and compaction be completed on the same day to minimize exposure to weather and sun.
