Polypropylene Bidirectional Geogrid
PP bidirectional geogrid is used for the reinforcement of embankment and roadbed, slope protection, cave wall reinforcement, large airports, parking lots and wharf yards, etc. It has the features of high tenacity, excellent formability, and great transverse tensile strength.
Mimaroglu et al. [13] proved the necking instability modeling in uniaxially stretched polymers by finite element method, and ABAQUS software was applied to simulate the forming process of PP geogrids. The forming law and shape distribution during the stretching process are obtained, which can provide guidance for practical production.
Durability
Durable Bidirectional Geogrid is an excellent option for slope reinforcement and construction applications. It improves the strength of soil and helps to prevent erosion by distributing a strong load over a larger area. It also makes it easier to stabilize soil and prevent structural damage over time. The durable structure of our PP bidirectional geogrid makes it an ideal choice for walls, steep slopes and landfill capping systems. It also improves the strength of roadway foundations.
The durability of our PP bidirectional geogrid is a result of the polypropylene used in its manufacture. Unlike other geogrids, our PP bidirectional geogrid can be used with almost any type of fill material. It is designed with square apertures to ensure that it can interlock with the project’s fill material. Moreover, its high tensile strength and optimised geometry of nodes and ribs make it as strong as any other similar material.
PP bidirectional geogrids are able to provide the same level of stability and durability as uniaxial geogrids but at a lower cost. They can be manufactured to suit the specifications Polypropylene bidirectional geogrid of any given application, including retaining wall construction and stabilisation, highways and railways. Unlike uniaxial geogrids, which can be easily damaged during installation, PP bidirectional geogrids are resistant to degradation and are a great alternative for reducing construction costs.
Strength
Bidirectional polypropylene geogrid can be used in soil slope improvement and reinforcement engineering to prevent the collapse of slope surface. It can also help improve the tensile strength, bearing potential and stability of the soil. It can also be used in road and railway engineering to help disperse loads, increase the bearing capacity of soft foundation soils and reduce lateral movement of structures.
The geogrid’s apertures provide a strong interlocking mechanism with the aggregate material, effectively confining it within the grid. This helps to improve the quality of the final construction and extend its service life. This is particularly important in long-term applications, such as roads and rail platforms.
There are four main types of geogrid products: uniaxial, bidirectional, triaxial and woven. Woven geogrids are fabricated by weaving or knitting polymer yarns together in a net/grid-like structure. They are typically made of a high-density polymer and are coated with a protective layer to resist construction damages, environmental exposure and corrosion.
Extruded geogrids are produced by bonding mutually perpendicular strips of a polymer together at their crossover points, using heat or a welding machine. They are typically manufactured from HDPE or a blend of materials. The tensile properties of extruded geogrids vary considerably, depending on the method of production, the joint type, the rib profile and the polymer used.
Temperature Resistance
Geogrids are widely used as soil reinforcement and are required to have good long term mechanical properties. These include high in-plane stiffness and strength, good junction efficiency, and compatibility with the aggregate. These characteristics are influenced by the method of manufacture, the joint type, and the rib profile. Geogrids are also subject to a variety of stresses during use, which can cause them to deform and weaken over time.
In order to address this issue, a performance-optimized multi-axial geogrid was designed. It is characterized by a multi-rib porous structure, large tensile strengths in multiple directions, and low transverse tensile strength. Its tensile process Slope Protection Geocell Used was analyzed by experiment and simulation, and the results were used to design the forming process of POMG.
It was found that the elongation at break of POMG was closely related to its tensile strength, and the forming process had a significant effect on this property. It was also discovered that the elongation at break of the 90deg main rib and sub-rib should not be more than 15%, while the 0deg rib should not be less than 13%.
The forming process of POMG is simulated using a finite element model. The model includes a basic simulation unit with circular-circular pre-punched holes. The model is then stretched using the forming process parameters in Table 1. During the stretching process, the basic simulation unit experiences a deformation-induced stress distribution, which is modeled with an equivalent stress-strain curve.
Flexibility
There are three different ways that geogrids can be manufactured. Woven geogrids are made of a tightly woven polyester material, bonded geogrids are formed by bonding at right angles, and extruded geogrids are formed from flat sheets of polypropylene or polyethylene that are stretched to create an integral structure. Woven and bonded geogrids tend to be more flexible than extruded geogrids.
Bidirectional plastic geogrid is fit to reinforce the roadbed, tunnel wall, airport, wharf and others that have permanent bases. It can take the place of metal wire mesh and is characterized by really high tensile strength along the stretching direction and an ideal interlock system with soil.
Another advantage of a bidirectional geogrid is that it can distribute the load evenly over a large area. This helps to reduce the amount of base material required for construction projects and saves on both cost and time. It can also reduce the risk of ground instability and improve safety for workers.
Some companies offer composite products that combine a bidirectional geogrid and a geotextile fabric in one roll. This can help to save even more time on installation as the work is done in a single step. This is ideal for situations where a layer of geotextile is needed to separate the soil from the base, but the unified strength offered by a geogrid is desirable.
