• 1.Why HDPE Geomembrane Can Be Widely Used For Landfills?

    The impervious geomembrane avoids liquid in solid waste leaking into soil, and will not be corroded by solid waste. HDPE geomembrane used in general solid waste landfills conforms to the national building standard, and the thickness of the impermeable geomembrane that usually applied in practical projects is 1.5 mm or more. HDPE geomembrane produced by our company meets the domestic standard, which can effectively prevent corrosion, be resistant to puncture and not easy to decompose. HDPE geomembrane is the material especially suitable for seepage prevention in solid waste landfills. HDPE geomembrane is made of new high-density polyethylene particles, differs from the performance characteristics of geosynthetics such as geotextiles, waterproof liners and geogrids. HDPE geomembrane has excellent anti-permeability and isolation property, and has been widely used in landfill and other construction projects.

  • 2.What Are The Requirements For Installing Geotextiles?

    1. Inspection for foundation: Check whether the foundation is flat and solid. If there is any stones or other obstacles, it should be cleaned out properly. 2. Laying for test: Determine the size of the geotextiles according to the conditions on construction site, and then lat geotextiles for test after cutting. The size must be cut accurately. 3. Check if the width of the geotextile is suitable, the joint should be flat and the tightness should be moderate. 4. Positioning: The overlapping parts of the two pieces of geotextiles are bonded by a hot-air gun, and the distance between the bonding points should be appropriate. 5. When the overlapping part is welded together, the welding line should be straight and even. 6. After the welding, check whether the geotextile is laid flatly and whether there is any defects. 7. Check if any unqualified, if yes, repair in time.

  • 3.Why Long-fibre Geotextiles Are Suitable To Be Used In Highway Construction Project?

    During the construciton of highway, the cracks on highway are a kind of extremely harmful pavement diseases, which can be divided into two categories according to the causes of formation: load cracks and non-load cracks. Load cracks are mainly generated because of fatigue fracture caused by traffic load. Non-load cracks are usually caused by temperature and humidity changes and the characteristics of the material itself, some of the cracks are caused by uneven settlement of the roadbed. High-strength long fibre geotextiles can completely avoid these problems. High-strength long fibre geotextiles can replace traditional materials and construction methods, make construction safer, and contribute to environmental protection. Long fibre geotextiles have good mechanical function, good water permeability, anti-corrosion and anti-aging properties, and the functions of isolation, filtration, drainage, protection, stability and reinforcement, can solve basic problems in engineering construction more economically, effectively and permanently. Long fibre geotextiles adapt to the uneven foundation, resist to the damage of external force, and still remain the original functions of road pavement under long-term load.

  • 4.How Does Geogrid Solve The Problem Of Wheel Rut On Asphalt Pavement?

    Due to the rheological property of asphalt at high temperature, the surface of asphalt road in summer may become soft and sticky. Under the load of vehicle, the load-carrying area will be sunken. And the asphalt surface cannot be fully restored to the original condition, so that plastic deformation occurs, and then after the repeated rolling compaction of vehicles, plastic deformation is accumulated constantly and forms wheel rut. Now geogrid is generally used in road construction, and the application of geogrid in asphalt layer can effectively reduce the generation of wheel rut. We know that geogrid has the features of high tensile strength, low elongation ratio and high temperature resistance, and can be compatible with asphalt mixture. When the asphalt concrete runs through the grid, a composite mechanical locking system is formed. The locking system will restrict the movement of aggregate and increase the lateral constraint force in asphalt layer, which will prevent the asphalt layer from deforming and avoid the occurrence of wheel rut. The above shows that if clients want to reduce the occurrence of wheel rut and build high-quality road, the addition of geogrid is necessary in road construction; geogrid plays an irreplaceable role in extending the service life of highway and also protects the safety of the road, and thus becomes the indispensable material in road construction.

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