The ARES wall system is a geosynthetic reinforced MSE wall with a concrete panel facing. Most concrete panel systems use metallic reinforcement. On this project, the on-site backfill soil did not meet electrochemical requirements for the use of metallic reinforcement, so this system became an attractive option. [Source: Tensar. Image: Tensar]
ATLANTA-August 22, 2012- Tensar Corporation’s Geopier Foundation Company subsidiary (“Geopier”), a leader in ground improvement solutions, today announced its acquisition of Slope Reinforcement Technology, LLC (“SRT”).
The acquisition allows Geopier to offer slope stabilization solutions while boosting SRT’s market reach. Geopier has historically focused on providing vertical ground reinforcement in support of foundations and their structures. SRT has concentrated on slopes that have failed or are potentially unstable. [Editor] Click through for the rest of the press release. [/Editor]
Another busy month for ASTM with 66 new, revised or otherwise updated standards related to geotechnical and geological engineering (although not as busy as last month). A couple that caught my eye include brand new standards for geospatial data requirements related to abandoned mines, a new standard for sampling of EPS or geofoam, updated standards for mortar and cement, flexural strength of concrete, LA Abrasion test for aggregates, acceptance testing of geosynthetic clay liners, electrical methods for leak detection of geomembranes with earth cover and classification of soils and soil-aggregate mixtures for highway construction purpose (AASHTO classification).
Those involved in the materials testing side of the business should take a close look at the full list as there are also a number of updated standards relating to various asphalt and and aggregate tests, capping of concrete cyllinders and other related testing standards.
For my practice, perhaps the most significant standard that was updated was D 2488 – Standard Practice for Description and Identification of Soils (Visual-Manual Procedure) which we rely on for our field USCS classifications. I’ll be curious to see what those changes entail. Click through for the full list.
Text from TRB: TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 187: Seismic Design of Geosynthetic-Reinforced Soil Bridge Abutments with Modular Block Facing explores design methods and construction guidelines for using geosynthetic-reinforced soil (GRS) […]
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