Combigrid®

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Combigrid®

Product catalog summary

Typical Fields of Application for Combigrid®

Unpaved Roads: Used between soft subgrade and subbase to improve bearing capacity and prevent fines migration. Advantages include reduced surface deformation, base course thickness, maintenance cycles, and extended service life.
Paved Roads & Storage Yards: Applied at the interface or within base layers to meet compaction and bearing capacity requirements. Benefits include reduced surface deformation, base course thickness, maintenance cycles, and extended service life.
Railway Construction: Reduces movement and particle reorientation in sub-ballast and ballast layers, maintaining track integrity. Advantages include reduced surface deformation, base course thickness, maintenance cycles, and extended service life.
Working Platforms: Stabilizes and reinforces platforms on soft subgrades, improving bearing capacity and reducing deformation. It is an economic alternative to deep foundation solutions.

Product Description
Combigrid® is a composite of a geogrid and a geotextile, used for soil stabilization and reinforcement in infrastructure, environmental protection, and hydraulic engineering. It combines separation, filtration, and reinforcement properties.
Advantages of Combigrid®

Stress/Strain Behaviour: Provides high strength at low elongation, aligning with soil strain behaviour to maintain structural integrity. It offers excellent tensile strength at low elongations, crucial for holding soil particles together.

Performance and Testing
Tests show that Combigrid® significantly reduces rut depth under load cycles compared to unreinforced sections, demonstrating its effectiveness in infrastructure projects on low bearing capacity subsoil.
Figures and Data

Figures 1-4: Illustrate applications in unpaved roads, paved roads, railway construction, and working platforms.
Figure 5: Shows stress-strain curves of different geogrids, highlighting Combigrid®'s performance at low elongations.
Figure 6: Displays traffic benefit ratio over weak subsoil, indicating Combigrid®'s superior performance.

Catalog excerpts

Building on sustainable ground.

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Combigrid® is a composite of a laid geogrid made of stretched, monolithic flat bars with welded junctions and a mechanically bonded and calendered filter geotextile welded within the geogrid structure. Combigrid® is used for stabilisation and reinforcement of soils in many fields of infrastructure, environmental protection, and hydraulic engineering applications. TYPICAL FIELDS OF APPLICATION FOR COMBIGRID® Unpaved Roads Figure 1: Unpaved Roads Unpaved low volume roads are extensively used for either temporary or permanent transportation purposes, such as haul roads, access roads or rural roads....

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ADVANTAGES OF COMBIGRID® Combigrid® is a geocomposite stabilisation and reinforcement solution. The unique manufacturing process produces structured, high strength, monolithic, pre-stressed polypropylene or polyester bars with a continuous molecular orientation. The extraordinary high extensional stiffness of Combigrid® efficiently reduces deformations in the subgrade which extends the service life of modern infrastructure. 100 Geocomposites like Combigrid® are used wherever high strength is required at low elongation. The stress-strain behaviour (also known as tensile stiffness) of the geogrid...

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Approvals for the Naue Group Combigrid®, Secutex® and Secugrid® are registered trademarks of Naue GmbH & Co. KG in various countries. The information contained herein is, to the best of our knowledge, true and accurate. There is no implied or expressed warranty. © 2021 Naue GmbH & Co. KG, Espelkamp, Germany · All rights reserved · No. 00088 · Status 15.10.2021

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Combigrid®

Combigrid®

Catalog excerpts

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