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]
Deformability and strength of weak rocks using in situ UCS test, fluvial sediment terminology, concrete and concrete aggregate terminology and nondestructive testing terminology are among the ASTM Standards revised this month. There are also some reapprovals that are noteworthy, including chain of custody procedures and some asbestos and peat related standards.
Up until recently, the biggest steel H-Pile section you could get was an HP14 weighing up to 177 lb/ft. But ENR reports that manufacturers are now rolling steel H-Piles in 16 and 18 inch depths. […]
Maccaferri has a unique research facility, the Maccaferri Innovation Center (MIC), located in Bolzano, Italy. Maccaferri was founded based on their invention of the now ubiquitous gabions, but are now known worldwide as experts in […]