Which geosynthetics are needed for landfills?

When laying geosynthetics, landfills often need to lay more than four products, and some even lay six layers. Therefore, the order of laying geosynthetics is different. The geosynthetics needed by landfills are nothing more than the following: geomembrane, geotextile, bentonite waterproof blanket, composite drainage net and other materials.

During the renovation of landfills, the compaction of the foundation strives to meet the design indicators to prevent a large amount of garbage from being put into the site in the later stage, which will compress the foundation and cause it to settle, causing the geosynthetics to deform. When the deformation exceeds the elongation of the anti-seepage geomembrane, fractures and cracks will occur, causing the anti-seepage system to fail. Therefore, the compaction of the foundation and slope must meet the design indicator requirements. Huaxiang Geosynthetics has a professional product quality control laboratory and can provide customers with geosynthetics products that meet international standards.

Geomembrane

• Introduction: Geomembrane is a waterproof barrier material with high molecular polymer as the basic raw material.

• Features: It has excellent resistance to environmental stress cracking, chemical corrosion, aging and impermeability. Its low permeability can effectively prevent the penetration of liquids and gases, and is a key material for preventing leachate leakage in landfills.

Geotextile

• Introduction: Geotextile, also known as geotextile, is a permeable geosynthetic material made of synthetic fibers through needle punching or weaving.

• Features: It has good filtration, drainage, isolation and reinforcement protection properties. It can effectively filter impurities in leachate and prevent clogging of the drainage system; at the same time, it can isolate different soil layers and enhance the stability of the landfill structure.

Geosynthetic Clay Liner

• Introduction: It is made of highly expansive sodium-based bentonite filled between special composite geotextiles and non-woven fabrics.

• Features: Bentonite swells when exposed to water to form a dense colloid with excellent self-healing ability and impermeability. Under complex geological conditions, it can adapt to uneven settlement and maintain good anti-seepage effect.

Composite drainage net

• Introduction: It is composed of a three-dimensional plastic mesh core and double-sided composite geotextile.

• Features: It has a three-dimensional drainage space, can quickly drain groundwater and leachate, reduce pore water pressure, and increase the stability of the landfill. At the same time, it has certain tensile strength and compressive properties.

Geogrid

• Introduction: It is a major geosynthetic material, divided into four categories: plastic geogrid, steel-plastic geogrid, glass fiber geogrid and polyester warp-knitted polyester geogrid.

• Features: It has high tensile strength and low elongation, which can effectively improve the stability of landfill slopes and prevent soil sliding and collapse.

These geosynthetics each play an important role in landfill projects to ensure the safety, stability and environmental protection of landfills.

As the world's leading manufacturer of geosynthetics, our commitment to innovation and quality makes us the first choice of engineers, contractors and project managers around the world. If you have a landfill project under construction, please feel free to contact us. Our professional sales consultants will provide technical solutions online 24 hours a day. At the same time, we can also provide you with free samples for testing.