![]() Previous articles from NCMA have noted both AASHTO specifications and FHWA guidelines support the design of geosynthetic reinforced soil structures in public sector markets including structures designed for state DOTs. The NCMA’s Design Manual for Segmental Retaining Walls, 3rd edition, has been instrumental in the growth of geosynthetic reinforced soil walls in commercial markets by providing a fundamental geotechnical-based method for structural stability analysis. This article was written to emphasize the importance of having documentable certification for geogrid reinforcement products delivered to a construction site for use in any and all civil engineering structures. They felt it necessary to remind users that not all geogrids are “created equal.” A geogrid product may look and feel like all other geogrid products, but unless it is subjected to the proper testing protocols, the end user may be getting sub-par material. ![]() Lance Carter and Michael Bernardi, although competitors, felt the need to remind geosynthetic users, specifiers, and designers that as manufacturers and marketers of polyester reinforcement products, they are held to high standards when it comes to the quality of these products. Lance Carter and Michael BernardiĪdopted by the NCMA Segmental Retaining Wall & Hardscape Products Committee Editor’s note Submittal requirements for polyester geogrid reinforcement By R.
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