TenCate Geosynthetics Base Reinforcement Geogrids Excel in Montana DOT Study

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Source: TenCate
Publication date: September 9, 2009

In the independent Montana DOT study, TenCate Mirafi BXG - the wovengeogrid of TenCate Geosynthetics North America - outperformed all testedbiaxial geogrids including the traditional extruded biaxial geogrids.

The research, performed for the Montana Department of Transportation and theFederal Highway Administration by the Western Transportation Institute, evaluated theuse of reinforcement geosynthetics in unsurfaced roads built on soft subgrades (ReportNo. FHWA/MT-09-003/8193). In this study, eight (8) geogrids were evaluated againsttwo (2) control sections. The results of the study clearly demonstrate the uniquebenefits provided by TenCate Mirafi BXG geogrids.

Unlike the extruded biaxial geogrids which experienced rupture during the study, thedesign of TenCate Mirafi BXG woven geogrids allowed high transference of strengthfrom the geogrid to the soil. The rupture of the extruded biaxial geogrids "significantlylimited their ability to carry load in the cross-machine direction, which consequentlyreduced their ability to stabilize the weak subgrade soils during trafficking". However,TenCate Mirafi BXG geogrids had "very little rib damage" and provided the best ruttingperformance of all geogrids tested.

Brett Odgers, PE, roadway reinforcement market manager at TenCate Geosynthetics isexcited: "We are extremely pleased with the results of this independent study. Ourgeogrid production technology has allowed us to produce the most effectivereinforcement geogrid available on the market. We are also pleased that this researchfinally dispels the myth that old extruded geogrid technology outperforms therevolutionary woven geogrid technology".