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 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 July 9, 2020
Those of us in the geotechnical profession use ASTM Standards on a daily basis. It’s hard to keep up with changes, so I have brought back a GeoPrac.net feature I had a number of years […]
Standards and Codes
ASTM Updates October 2010
Time again for a summary of changes to ASTM standards that may be of interest to geotechnical engineers, engineering geologists and those in geoconstruction and even lab testing or CQA. This month there is a new standard for a new type of geomembrane, revisions to standards relating to ultrasonic testing and general nondestructive testing terminology, evaluation of particle shape in aggregates, and re-approval of standards relating to non-asbestos fiber-cement based products. Click through for more.