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Information about uniaxial geogrids
Uniaxial geogrids are flat, high-strength mesh materials that are formed into an open grid by directional stretching of the polymer. Commonly used polymers include polypropylene, high-density polyethylene, glass fiber, polyester, and synthetic fibers.
The following is a list of contents
What is a uniaxial geogrid
Uniaxial geogrids in everyday use
Storage considerations for uniaxial geogrids
Uniaxial geogrids is a high-strength geotechnical material made of polymer material as the main raw material, adding certain anti-UV and anti-aging additives, through a one-way stretching process to reorient the originally dispersed chain-like molecules to a linear state, extruding and pressing into thin plates, then punching out a regular network of holes, and then stretching longitudinally. In this process, the macromolecules in the uniaxial geogrid are reoriented in a linear state to form a long elliptical mesh structure with uniform distribution and high nodal strength. This structure has a very high tensile strength and a tensile modulus of 100-200Mpa, close to that of mild steel and much better than conventional or existing reinforcement materials. It is therefore a widely used material for wall reinforcement.
Uniaxial geogrids are raw materials with a web-like structure, extruded from a uniform and consistent opening, which are subsequently heated and molded into a polymeric material. These raw materials are characterized by a very high tensile strength and a higher tensile strain rate than the Latin direction, giving the soil an ideal interlocking system software and a low strain rate. The retaining walls and concealed culverts are building structures under stress and are subject to all external loads: active earth pressure, loads on the upper end of the building structure, temperature ground stress, etc. The reinforcement raw materials are under huge support forces for a long time and their loads are constantly acting on the molecular type of the raw materials leading to fatigue and their properties producing an attenuation coefficient that accelerates the embrittlement of the uniaxial geogrids. To prevent huge deformation of the structure due to stress relaxation of the reinforcement raw material, uniaxial geogrids should be selected as wall reinforcement material.
Uniaxial geogrids are unique construction materials, such as polypropylene, polyethylene, and other geosynthetic materials, so they should be stacked in a room with natural ventilation and light insulation, the total time of stacking does not exceed 3 months if the stacking time is too long need to be retested; laying should pay attention to reduce the time of natural light directly irradiated uniaxial geogrids to avoid aging. Secondly, to avoid damage to this material at the construction site, a 15 cm thick layer of fill is required between the chain rails of commonly used machinery and them. In addition, as water transport may absorb moisture, road freight is generally used to transport uniaxial geogrids.
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