Use & Purposes
In the application of base reinforcement there is the design intention of improving the bearing capacity of an existing subgrade by including a geogrid (or layers of geogrid) over the in-situ subgrade to minimise the amount of granular material needed in the base course (or pavement) design. In some situations there may be a requirement to increase the service life of the pavement by the inclusion of a geogrid for a fixed pavement depth.
The preferred geogrid in such applications is a biaxial “stiff” high modulus product. Global Synthetics are able to offer Secugrid® which is a low strain biaxial (equal strength in both directions) geogrid with higher strengths than most other geogrids at strain levels of 1%, 2% and 5%. Stiffer geogrids pick up load more quickly and consequently operate at strain levels appropriate to pavement performance levels.
Combigrid® – Hardstand in Brisbane
In 2011, TRANSCITY was selected as the contractor to design, construct and operate the Legacy Way Toll Road in Brisbane’s west. Legacy Way, once complete, will connect the Western Freeway at Mount Coot-tha with the Inner City Bypass at Kelvin Grove.View More Case Studies
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