Geotextile tubes are filled by pumping material in slurry form into the tube to form structures that can be used as breakwaters, levees, or other containment structures. TenCate has a new product that much improves what was a weak point in the system, the connection between the geotextile tube and the injection system. Their newly-patented Geoport mechanical injection system reduces stress at the injection point, and makes sure that the final closed connection is as strong as the geotextile itself. [Source: Geosynthetics. Image: Geosynthetics]
This post contains a list of new, revised and otherwise updated ASTM standards that pertain to the geotechnical engineering, materials testing and related fields. Standard C39/C39M for testing the compressive strength of concrete cyllinders was updated, as was C42/42m for obtaining and testing drilled cores and sawed beams of concrete. The month of March also saw several geosynthetic standards being updated or added, including new standards for selecting the test method for geomembrane seams, and for testing the flexural rigidity of geogrids and other geosynthetics. There are also a few updated standards related to asphalt mix design and sampling of asphalt. Click through for updated ASTM Standards relating to geoprofessionals.