Evaluation of Geocell Reinforced Backfill for Airfield Pavement Repair

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U.S. Air Force of C-130 on runway, photo by Master Sgt. Joseph Swafford/Released
In this latest sharing of work from the GAP 2019 conference--Geosynthetica published GAP's proceedings--Lyan Garcia and Jeb Tingle of the U.S. Army Engineer Research and Development Center (ERDC) share geocell research 40 years in the making. ERDC's home in Vicksburg, Mississippi was also the site of the earliest geocell trials. Here, Garcia and Tingle report on new research motivated...

Bernardi to Lead Reinforced Soil Structures Course

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Geosynthetic Reinforced Soil Structures Image from Strata Systems
Geosynthetic reinforced soil structures (GRSS) have had a highly beneficial impact on infrastructure throughout the world. GRSS strategies, materials, and designs enable more sustainable projects, steeper slopes, safer retaining walls, and more. A high-level and highly successful course on the topic—Geosynthetic Reinforced Soil Structure Design and Construction: Slopes, Walls and Roads—was delivered in India in early December. Now, the...

Long-Term Outdoor Exposure Testing of Geosynthetics

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EcoPark Image from ACE Geosynthetics
During GeoAmericas 2016, K. Lin, A. Tang, and J. Wu detailed some ongoing exposure testing with geosynthetics in Taiwan. The results were somewhat unique in the field, due to the research being conducted in a warm, humid, and rainy subtropical region. Geosynthetica, which published the GeoAmericas 2016 proceedings, reprints the work here. NOTE: The feature image on this story...

Raven Adds Geosynthetic Fabrication Services Facility in Virginia

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Raven Industries, Inc. (NASDAQ:RAVN) is expanding its fabrication services eastward. The company has announced a site in Waynesboro, Virginia. The new location supports Raven’s Engineered Films Division in providing faster product delivery and more comprehensive service to the company’s growing East Coast portfolio of customers in energy, geosynthetic containment, and construction. The Waynesboro location will offer custom fabrication and strategically warehoused...

Permanent and Resilient Deformation Behavior of Geogrid-Stabilized and Unstabilized Pavement Bases

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Deformation Behavior Feature Image - From Figure 1
Prajwol Tamrakar, Mark H. Wayne, and David J. White present field tests and results with Automated Plate Load Testing (APLT) to determine the permanent and resilient deformation behavior of pavement bases with and without geogrid stabilization. The full paper version of this article is available in the GAP 2019 transportation engineering conference proceedings. GAP was developed and managed by...

Landfill Design in the Age of Sustainable Development

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Post-Closure Care of Landfills
In April, the inaugural Geo-U training and networking event will be held in Austin, Texas. Four concurrent engineering courses will take place 8 – 9 April 2020 and optional certification exams will be held on 10 April 2020. A half-day marketing course will also be offered on April 10. One of the most intriguing courses being offered is Landfill...

Assessment of Historical Army Airfield Pavement Condition Data

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US Air Force photo of airfield inspection
This article is a version of a paper included in the peer-reviewed proceedings from the GAP 2019 transportation engineering conference, which was managed by Geosynthetica's publisher Minerva TRI. Here, W. Jeremy Robinson, P.E. of the US Army Engineer Research and Development Center (ERDC) writes on how ERDC has reviewed airfield pavement condition data. The tests described and the resulting...

Geo-U 2020 Offers 5 High-Level Geosynthetics Courses

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The inaugural Geo-U gathering has been announced with Austin, Texas selected as the destination. With Geo-U 2020, four high-level, two-day geosynthetics short courses will be held currently. One the third day, a special marketing course will be offered while others may sit for relevant certification exams (e.g., Geosynthetic Certification Institute – Inspectors Certification Program). Geo-U 2020 will be held 7...

IAGI and Rippling Waters Rally Geo Community for Huge Impact

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Photo of children at KEGO by Rippling Waters Charity
Every ripple in the smallest water starts with a drop. This is how the Rippling Waters Charity (RWC) opens its website. The non-profit venture was established by John Heap (Raven CLI) and Suzi Heap with the International Association of Geosynthetic Installers (IAGI) and its Give Back Program in 2015. Together, they raise money, dedicate time, and support communities in...

Geosynthetics in Diverse Railroad Applications

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Stephen Wilk, Colin Basye, Dingqing Li, and Brad Kerchoff write on some roles for geosynthetics in railroad applications, such as for ballast pockets and flooded cuts. A version of this article was published as a peer-reviewed paper in the GAP 2019 transportation engineering conference proceedings. Minerva TRI, Geosynthetica's publisher, organized GAP. Introduction Maintaining a properly functioning track substructure is important for...