Product Introduction
Fiberglass warp-knitted geogrid is a reinforcing material specifically designed for pavement reinforcement. It uses high-strength, alkali-free glass fiber, woven into a mesh substrate through warp knitting, and then coated with modified asphalt or polymer materials.
If biaxial plastic geogrid is more suitable for the subgrade (soil), then fiberglass geogrid is a "crack-resistant wonder" for asphalt pavements.
"Warp knitting" refers to the weaving of warp and weft threads, with the intersections secured by special binding threads.
Structural stability: Compared to ordinary machine weaving, warp-knitted grids have more stable nodes and are less prone to mesh deformation under impact or construction compaction.
Load transfer: The stress distribution in the warp and weft directions is more uniform.
Working Principle
The performance of fiberglass warp-knitted geogrids stems from their unique physical properties:
High tensile strength and low elongation: Fiberglass has extremely high tensile strength and extremely low elongation (typically less than 3%). This means that the geogrid can immediately function to limit displacement in the initial stages of pavement stress.
Thermal stability: Asphalt paving temperatures are typically above 150°C. Fiberglass can withstand temperatures up to 1000°C without melting or deforming at high temperatures like plastic geogrids.
Stress absorption and dispersion: When vehicles pass over the pavement or temperature changes cause road surface expansion and contraction, the geogrid absorbs energy, dispersing concentrated stress over a wider area.
Chemical compatibility: The asphalt coating on the surface gives it a strong affinity for asphalt mixtures, ensuring a tight bond between the geogrid and the pavement, preventing the formation of a slip layer.
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Application Case
Application
Fiberglass geogrid is a "road doctor," primarily used to address the following issues:
Road reconstruction (asphalt to asphalt): When adding an asphalt layer to an existing cement pavement, laying fiberglass geogrid can significantly delay the formation of reflective cracks (i.e., prevent cracks in the old cement joints from directly reflecting onto the new asphalt surface).
Asphalt pavement reinforcement: Used for surface reinforcement of high-grade highways, urban arterial roads, and airport runways to prevent rutting and shoving.
Soft soil foundation treatment: Used for roadbed slope protection or reinforcement of soft soil foundations to improve overall bearing capacity.
Road widening: Lay at the junction of new and old roads to prevent longitudinal cracks caused by uneven settlement.
Address
Production Center: Development Zone, Tai'an City, Shandong, China
Marketing Center: Ichi-no-Machihigashi, Sakai-ku, Sakai City, Osaka, Japan