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]
Available Resources
ASTM Updates
An April 30th update on newly approved ASTM standards and work items related to soils, rock and related areas. Read on for the list.
Project Related
Geosynthetic solutions for Northumberlandia
Geogrid reinforced soil slopes, gabion retaining walls, erosion control blankets and other geosynthetics are being used to construct the world’s largest human form sculpted into the landscape on a project known as Northcumberlandia. The woman […]
Standards and Codes
ASTM Updates February 2010
ASTM C39/C39M – "Standard test method for compressive strength of cylindrical concrete specimens" is probably the most significant standard update for the moth of February, at least as it pertains to the geotechnical and construction industries. Also included are a number of other concrete and mortar related standards, and some changes to the E series on nondestructive testing. Click through for the list of ASTM Standards that were revised, reapproved or otherwise changed this month.