What is the difference between a woven and nonwoven geotextile?
June 16th, 2021
By Joshua Venters, Engineering Business Manager, Layfield Group The use of geotextiles has steadily grown over the past century. Geotextiles were initially derived from existing textiles that were readily available on the market, such as carpet backing and upholstery fabric. Manufacturers have modified geotextiles to provide increased benefits to roadway construction. While there are two […]
GSI to host webinar on geosynthetics used in paved and unpaved roads
June 7th, 2021
Beginning in the 1930s, geotextiles and then geogrids have been used in unpaved and paved roads for the purposes of reduced stone base thicknesses and improved serviceability. For use as unpaved road reinforcement, the theory is developed to the point that the benefit/cost of using geotextiles or geogrids can be assessed. This application is very […]
Geotextile under articulated systems in slope armoring
June 1st, 2021
Q: I have a question about the geotextile placed under articulated systems in slope armoring. Based on my understanding, a drainage layer is recommended between the geotextile and the armoring structure, but, since the armoring structure has some spaces in between the armoring blocks, won’t the particles of the drainage layer be washed out through […]
Useful service life of nonwoven geosynthetics
June 1st, 2021
Q: Where can I find literature on the useful service life of nonwoven geosynthetic fabrics installed in soils? Thank you. A: Nice to hear from you and thanks for your question in regard to the service life of nonwoven geotextiles. Below is a reference that I think is very good. In addition, I have exhumed […]
Fibertex Nonwovens announces further investments in high-tech plant expansions in Europe
May 5th, 2021
Fibertex Nonwovens, headquartered in Aalborg, Denmark, is embarking on a second stage of expansions with an investment of $48,401,148 (DKK 300 million) in the company’s plants in the Czech Republic and Turkey. The investment was prompted by increased global demand for the company’s high-tech and sustainable specialty products. In March 2021, Fibertex Nonwovens, a subsidiary […]
A new specification for geotextile grout filled mattresses
April 1st, 2021
By George R. Koerner FIGURE 1 GGFM being filled incrementally. Courtesy of HUESKER Geotextile grout filled mattresses (GGFM), also referred to (in ASTM D18.25/D35.05) as fabric-formed concrete (FFC) or fabric-formed concrete revetments (FFCR), are erosion-resistant concrete linings made from durable, permeable fabric forms that are filled with high-strength grout. GGFMs are generally sloping structures placed […]
Solmax liners help secure 10-day build of Wuhan hospital
April 1st, 2021
Workers involved in the installation of the Solmax liner for the Huoshenshan Hospital in Wuhan, China. Photograph courtesy of Solmax In late January 2020, just before the Chinese Lunar New Year, the COVID-19 pandemic broke out in large areas of Wuhan, Hubei Province, China. The city went into lockdown on Jan. 23, 2020, with the […]
Benefits of woven and nonwoven geotextiles
March 18th, 2021
Woven geotextile fabrics are manufactured through traditional weaving of individual threads into sizeable sheets. Individual threads are made of different kinds of materials, ranging from fibrillated yarns to monofilaments, slit films, etc. They are woven together on a specialized loom to create a large, uniform piece or sheet of geotextile material. Because of this process, […]
GMA history, Part 2
June 1st, 2020
During the Geosynthetics CASE STUDIES Conference in March in North Charleston, S.C., a few of the past Geosynthetic Materials Association (GMA) leaders had an opportunity to address the gathering and recall their personal experiences and achievements when they chaired the GMA executive council. This is the second installment of the history of GMA. Beginning in […]
GMA history and happenings
April 1st, 2020
By Andrew Aho Throughout the history of geosynthetics, leaders have emerged who have significantly affected the growth of the industry in North America. During the Geosynthetics CASE STUDIES Conference in March in North Charleston, S.C., a few of the Geosynthetic Materials Association (GMA) leaders had an opportunity to address the gathering and recall their personal […]