Two new standards from the Geosynthetics committee of ASTM will help define properties that can be used in the design of geosynthetic reinforced pavement. I know in my practice in Arizona, ADOT simply allows a boost of Resilient Modulus (R-Value) of 10 when biaxial geogrids are used. Perhaps in time this will lead to a design method to account for the geosynthetic reinforcement in a more analytical way. [Source: Geosynthetics Magazine]
Standards and Codes
ASTM Updates January 2010
Standards updates and revisions that may be of interest to GeoPrac readers include Bulk Density and Voids in Aggregate, several updates for Dry-Cast Segmental Retaining Wall Units, a revised standard for the California Bearing Ratio (CBR) test and several for Geosynthetic Clay Liners and Lanfill Daily Covers. Click through for the list.
Standards and Codes
ASTM Updates February 2009
GeoPrac’s monthly update on ASTM standards. There are a bunch of updates to C series for concrete, including standards for making and curing specimens in the field, shotcrete specs, and a handfull of geosynthetic and geomembrrane standards have been reapproved. Read on for a summary.
Standards and Codes
ASTM Updates for October 2012
Here is a collection of new, revised and updated ASTM standards from October 2012 that may be of interest to geoprofessionals. See the list after the break…