TEXTILES.ORG
Geotechnical Frontiers 2025 crosses finish line in Derby City
April 1st, 2025
With 1,906 registered participants and over 200 exhibits, attendees for Geotechnical Frontiers 2025 enjoyed a great opportunity to learn about the industry and connect with other professionals. Louisville, Ky., was home to the four-day Geotechnical Frontiers March 2-5, 2025, at the Kentucky International Convention Center. The conference featured more than 200 exhibits displaying the latest […]
Geomembrane Insulation Design
April 1st, 2025
Q: We have a project where the client has requested us to design a soil cover to protect an HDPE liner from melting due to campfires. The locals like to hang out on the summit of this superfund site and have cookouts, and the privately owned site will not be secured after the 30-year post […]
Geomembrane Seam Sample Testing
April 1st, 2025
Q: We occasionally receive geomembrane seam samples for testing where LLDPE is welded to HDPE. In this situation, should these samples be tested at 50mm/min. or 500mm/min.? To further complicate this, sometimes these seams are extrusion welds using either HD or LL rod. Does this influence the selection of the test method? A: Your first […]
Carbon black in geomembrane formulation
April 1st, 2025
Q: What is the purpose of “good” carbon black in a geomembrane formulation? A: Carbon black is a powerful black pigment widely used to color plastics. It acts as a UV absorber, protecting plastic from degradation caused by sunlight. This is particularly important for outdoor applications where geosynthetics are exposed to the sun’s harmful UV […]
ASTM D5397 Clarification
April 1st, 2025
Q: I need some clarification regarding ASTM D5397. One of our baths is having an issue with the agitator. Does it impact the testing if the solution is not agitated continuously? A: Unfortunately, the agitator is a major factor affecting the results. IGEPAL® CO-630 is fragile over the long term and needs to be kept […]
Geomembrane Installation Risks
April 1st, 2025
Q: Could you please let me know if there is any information available on risks associated with installing a geomembrane? Our CQA inspector is pressing us for this because the owner is doing a risk assessment of the geosynthetic installation process. A: Common injuries associated with geosynthetic installation include electric shock, burns, lacerations, pinches, muscle […]
Overlaying new GCL on damaged GCL
April 1st, 2025
Q: Can you provide information about overlaying a new GCL on hydrated and damaged GCL? A: This is more complex than one might first think—particularly from the standpoint of instability. The friction angle (ASTM D5321) of hydrated GCL to new GCL might be in the single digits (i.e., 8+/-2 degrees residual or less). Depending on […]
Trends in geosynthetics
April 1st, 2025
FIGURE 1 This overhead view of Tensar’s InterAx geogrid shows it being placed and then covered with sub-ballast. The geogrid was installed at a new industrial logistics center in Texas. The project required the construction of approximately eight miles of new rail in order to service the manufacturing facilities being built on the developing land. […]
2025 Premier Product Showcase
April 1st, 2025
Here is your first look at some of the new products and services that will be available from companies in 2025. Information for this special section was provided by companies who submitted materials to us before the publication deadline. All photographs are courtesy of the company listing the product/service. To view the products and services, […]
Build America, Buy America Act
April 1st, 2025
This is a summary of the activities and involvement of the Geosynthetic Materials Association (GMA) in the Build America, Buy America Act (BABAA) discussions over the past 2½ + years, since the passage of the Infrastructure Investment and Jobs Act (IIJA aka BIL). The provisions of BABAA created difficult and unprecedented complications for the implementation […]