Use & Purposes
Geogrids are polymeric products formed by joining intersecting ribs. They have large open spaces also known as “apertures”. The directions of the ribs are referred to as machine direction (md), orientated in the direction of the manufacturing process or cross machine direction (cmd) perpendicular to the machine direction ribs. Geogrids are mainly made from poly – meric materials, typically polypropylene (PP), high density polyethylene (HDPE) and polyester (PET).
Combigrid® is a flat composite geogrid from the Secugrid® product range. Incorporated into the geogrid construction is a non woven geotextile component for specific applications where reinforcement of problematic soils is required combined with the additional functions of separation and filtration. This combination provides reinforcement stabilisation, filtration, separation and drainage in a single product. The unique manufacturing process produces structured, high strength, monolithic, pre-stressed polypropylene or polyester bars with a continuous molecular structure. The extraordinary high extensional stiffness of Combigrid® efficiently reduces deformations in the subgrade which extends the service life of modern infrastructure.
Combigrid® is a multifunctional geogrid and is particularly suited for use on weak subgrades (CBR? 3) where the benefit of reinforcement is provided by the geogrid whilst the non woven geotextile component provides a positive separation and filtration function.
Continuous improvement of the manufacturing process, stringent quality control in raw material selection and expert engineering support ensure safe and economical constructions.
Benefits of Combigrid®:
Combigrid® soil reinforcement applications:
To assist you in your design, this software has been designed to allow a generic calculation of aggregate base material in unreinforced and Secugrid®, reinforced applications, such as under roadways, access/haul roads, parking lots or similar applications. Secugrid® geogrid reinforcement extends project service life, improves performance, reduces excavation, and lowers overall costs. SecuCalc 2.2 is based on test trials and 30+ years of engineering knowledge. For further information click here:
Combigrid® – Harvey Norman Platform
In 2011, it was planned to build granular piling rig access platforms to facilitate the installation of piles for support of the new Harvey Norman bulky goods project in Maroochydore in Australia to increase the low subgrade strength and to provide sufficient bearing capacity for the imposed loads of the cranes.View More Case Studies
DrainTube approved by FIFA for synthetic soccer fields
DRAINTUBE™ is a horizontal drainage solution that provides all the benefits of a drain as well as the cushioning effect of a geotextile - all in one installation. The system comprises perforated...Read More
Armormax®, the Sustainable Engineering Solution for Slope Stability and Erosion Control
Almost all sliding of soil masses are due to the combination of increased shear stress acting on the soil, along with reduced shear strength of the soil itself. Identifying the sole reason...Read More
Webinar Q & A Transcript – Lessons learnt from geogrid reinforced wall failures
1. Does the geogrid/reinforcement installation increases the safety factor. If yes, by how much will it be increased? Yes geogrid increases Factor of Safety (FOS). Reinforcement length is very...Read More
Applications for Pyramat® 25
An ideal solution to help prevent scour. What is PyramatⓇ 25? Pyramat® 25 is a High-Performance Turf Reinforcement Mats (HPTRM) that offers a permanent engineered solution against erosion,...Read More