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FGI webinar – Mobilized Interface Strengths on Geosynthetic Lined Slopes – October 18
October 13th, 2022
A webinar on Mobilized Interface Strengths on Geosynthetic Lined Slopes will take place on October 18 at noon CDT; noon October 19 AEST pre-recorded (Australia); October 19 noon CAT pre-recorded (South Africa); and 5 p.m. JST pre-recorded (Japan). The presenter is Timothy D. Stark, Ph.D., P.E. It is free to students and industry professionals, a […]
WINFAB expanding with geotextile production line
August 22nd, 2022
Willacoochee Industrial Fabrics, Inc. (WINFAB) is investing in a new state-of-the-art nonwoven geotextile manufacturing production line in Nashville, Ga. Start-up of the ANDRITZ needlepunch line is planned for the second quarter of 2023. “We’re excited to continue the growth of our industry-leading geosynthetic solutions, and to provide options to customers during a time of industry […]
Drefon polypropylene nonwoven geotextiles
August 17th, 2022
Polypropylene nonwoven technical textiles produced by Manifattura Fontana SpA are intended for industrial uses, civil engineering works, and agricultural applications. The geotextiles are made of high-tenacity virgin fibers in polypropylene and divided in two families: Drefon® ST (90-500 g/m2) needle-treated and thermofixed, and Drefon® S (120-2000 g/m2) needle-treated only. Photo courtesy of Manifattura Fontana. These […]
Impregnation as it relates to seaming geosynthetic clay liners
August 1st, 2022
FIGURE 1 A GCL with 20-inch (50 cm) edge bentonite impregnated. Photograph courtesy of NAUE Q: We are confused with the term “impregnation” as it relates to seaming geosynthetic clay liners (GCLs). There are two types of impregnations: (1) edge impregnation and (2) complete nonwoven (cap layer) impregnation of GCLs. How does a manufacturer do […]
Service life of nonwovens
August 1st, 2021
Q: Where can I find literature on the useful service life of nonwoven geosynthetic fabrics installed in soils? A: One of the best references in this regard is from a manufacturer of nonwoven geotextiles. It is: SI Geosolutions (now Propex). (1997). Smart Solutions, Technical Note, SM-404. “The durability of polypropylene nonwoven geotextiles for waste containment […]
Cirtex video spotlights geotextiles in coastline protection
June 21st, 2018
Cirtex, in Kopu, Thames, New Zealand, released a video on June 19, 2018, that showcases geotextiles used for filtration and erosion protection in coastline seawalls. Narrated by Cirtex civil and geotechnical engineer Michael Sorensen, the three-minute video takes the camera down below the boulders in seawalls to examine both properly specified geotextiles and improperly specified […]