The miracles of modern civil engineering hinge on a pivotal material: plastic geogrids. Far from being a passive filler, they act as an active reinforcement. Crafted from polymer composites into an integral mesh structure, they boost the structural strength of civil engineering projects. ROAD Company has delved deep into polymer modification technology and stretching processes, evolving plastic geogrids from single-function products to multi-functional and intelligent ones. We have built a complete product portfolio covering uniaxial, biaxial, triaxial and quadaxial geogrids, capable of providing customized solutions for all types of complex engineering scenarios.
Core Principle: High-molecular polymer sheets undergo precision punching and then high-intensity stretching along a single direction. Stretching aligns polymer molecules in a highly oriented manner, endowing the material with ultra-high tensile strength and modulus in that specific direction.
Performance Features
· Ultra-high strength: Uniaxial stretching forms reinforced ribs, with an ultimate tensile strength of over 360kN/m.
· Low elongation: Minimal deformation under stress, effectively restricting the lateral displacement of soil.
· Robust nodes: A proprietary node design ensures the coordinated stress-bearing of longitudinal and transverse ribs.
Core Principle: Polypropylene sheets are precisely stretched in both longitudinal and transverse directions to form a square or rectangular mesh. Molecular chains achieve orientation in both directions, granting the material excellent and comparable mechanical properties in longitudinal and transverse directions.
Performance Features:
· Strong biaxial isotropy: Balanced tensile strength in longitudinal and transverse directions forms a stable planar mesh structure. ROAD’s biaxial geogrids have achieved stable mass production with a consistent strength of 60kN/m in both directions.
· High interlocking force: The mesh creates excellent interlocking and engagement with soil particles, resulting in a high friction coefficient.
· Fatigue and corrosion resistance: Superior long-term durability, adaptable to complex geological environments.
Core Principle: An innovative structural design. Unlike the traditional square mesh, its structure consists of a series of equilateral triangular units. As a geometrically stable structure, the triangular design delivers further performance enhancements.
Performance Features
· Tri-directional stress bearing: Strength in three planar directions enables more uniform stress distribution.
· Improved node efficiency: The triangular structure ensures efficient load transfer through nodes.
Core Principle: Integrating the full advantages of biaxial and triaxial geogrids, it is an innovative and upgraded "composite reinforced" geogrid. Our company holds a number of invention patents for this product. Adopting a proprietary structural design, it forms a more effective mesh structure with extremely strong restraint capacity in the longitudinal, transverse and diagonal directions
Performance Features
· Higher strength: A denser and more integral structure provides greater strength and lateral confinement for fillers, with a secant modulus of up to over 700kN/m at 2% elongation. Its performance indicators are superior to those of triaxial geogrids and other modified triaxial geogrids.
· Excellent puncture and deformation resistance: Particularly suitable for crushed stone fillers and uneven subgrades.
· Long-term durability: Optimized design reduces stress concentration points and extends service life.
The performance of geogrids depends 30% on materials and 70% on processes. Relying on advanced equipment, cutting-edge modification technology, sophisticated stretching processes and a strict quality management system, ROAD Company ensures excellence in every step from raw material selection to finished product manufacturing:
· Raw material selection and modification: High-quality virgin polypropylene, polyethylene and specially developed modified additives are used. Formulation design comprehensively improves mechanical properties and anti-aging performance.
· Precision stretch forming: Advanced molds are adopted to precisely control stretching temperature, stretching speed and cooling process, locking in molecular orientation in a timely manner to effectively achieve excellent mechanical properties.
· Innovative structural design: We continuously research and develop more efficient mesh and node structures to enhance the synergistic working effect between products and soil.
ROAD Company has established and implemented a strict standardized inspection process. Clear inspection items and frequencies are set from raw material inbound to finished product outbound, ensuring controllable quality throughout the product life cycle and fully guaranteeing stable and reliable product quality. Equipped with a complete set of testing equipment for geosynthetics and integrated with an intelligent manufacturing system, we realize real-time data transmission, capture extremely small strains promptly and achieve higher testing accuracy.
From the focused breakthrough of uniaxial geogrids, to the balanced stability of biaxial ones, the structural optimization of triaxial ones, and the innovation and transcendence of quadaxial ones, our plastic geogrid product portfolio has achieved a full-range layout, capable of providing a complete series of reinforcement solutions for all types of civil engineering projects. ROAD Company will continue to deepen its roots in the geosynthetic materials industry and strive to make greater contributions to infrastructure construction with outstanding product quality.
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