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 for March 8, 2021
Those of us in the geotechnical profession use ASTM Standards on a daily basis. It’s hard to keep up with changes, so I attempt to post regular digest updates to the ASTM standards of importance […]
Press Releases
AASHTO and ASTM International Agreement Benefits U.S. and Global Road Construction and Transportation
November 6, 2012, WASHINGTON – Today’s signing of an Agreement on Standards between the American Association of State Highway and Transportation Officials (AASHTO) and ASTM International solidifies coordination between two organizations working in the common interest of highway construction, safety, maintenance, and sustainability in the United States and around the world.
AASHTO Executive Director John Horsley and ASTM President James A. Thomas today signed an agreement which serves as the basis for continued mutual cooperation on the development and publication of highway construction standards.
[Editor] Click through for the rest of this press release from AASHTO and ASTM. [/Editor]
Standards and Codes
ASTM Updates September 2010
Last month there were several updates to standards involving texting the flexural strength of concrete as well as updates to some masonry and dimension stone standards. ASTM D6926 – Standard Practice for Preparation of Bituminous Specimens Using Marshall Apparatus has been updated, so if you are involved in asphalt pavement testing, make sure you go and find out what the changes are. There are also a whole slew of groundwater and site investigation standards that were reapproved.