Improving Drainage at Expansion Joints in Rigid Pavements

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By GSE Environmental – Repairing damaged expansion joints in rigid pavements is a costly endeavor. Not only is the cost of the repairs high, but repair projects can go on for miles and shut down vital lanes of traffic important to commuters and local commerce. The primary cause of premature damage is insufficient drainage under rigid pavements. MANAGING EXPANSION JOINTS Expansion joints are partic... »

Southeast Asian Geotechnical Society 50th Anniversary Symposium

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The Thai Geotechnical Society will host the Southeast Asian Geotechnical Society’s 50th Anniversary Symposium. The international event, featuring 35 invitation-only presentations, will be held 14 – 15 September 2017 at the Asian Institute of Technology (AIT) Campus in Bangkok. Key topics include transportation geotechnics, slope stability and stabilization technologies, embankment desi... »

PODCAST: Pullout Anchor Testing in Erosion and Sediment Control

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Jay Sprague of the South Carolina-based Denver Down Research Facility took on a private client’s pullout anchor testing questions with erosion and sediment control systems and components. The results began to yield revealing data on anchor pullout performance, and in a way that has not been previously explored. Listen to “Pullout Anchor Testing in Erosion and Sediment Control” on Sprea... »

MSE Wall Failures vis-à-vis the Lack of Geotechnical Filters

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By Dr. Robert M. Koerner – Since 2001, the Geosynthetic Institute has accumulated data on failures of geosynthetic-reinforced mechanically stabilized earth (MSE) retaining walls. Our MSE wall failures database presently has 301 cases, of which 191 (63%) have been caused in whole or part by water within, or adjacent to, the reinforced soil zone. We sincerely hope that our past writings and webinars... »

PODCAST: Leap Frog Ideas for Low Impact Development

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How do we create a more water-centric infrastructure? That’s a question LimnoTech senior engineer Dr. Daniel Medina, P.E., D.WRE addresses in his work. Low impact development strategies are very important to his work. It’s trickier than just saying “use LID,” though. Inequalities between cities and countries make is harder for some infrastructure strategies to get adopted. Priorities are different... »

Hydraulic Engineering Solutions Seminar, July 14

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Waterways are dynamic environments. Strong hydraulic engineering solutions are needed to create resilient infrastructures that minimize environmental impact, control costs, and provide long-term performance. On July 14, Maccaferri will host  an exclusive breakfast seminar (7:30 am – 11:00 am) in Gaithersburg, Maryland focused on the application and design of hydraulic solutions. The seminar is fre... »

Drainage and Venting of Geosynthetic Containment Systems

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The recent increase in discussion on finer points to geomembrane installations (e.g., managing geomembrane wrinkling) has us revisiting stories on other significant points regarding geomembrane system performance. Here, we look at an article authored by Andrew Plowman (Varicore) about the importance of proper drainage and venting design and how it impacts the integrity of geosynthetic containment ... »

The Geotechnical Poetry of Mary Nodine

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Geotechnical engineering requires a lot of waiting. You wait on calls, test results, the weather. You wait on a construction activity to finish, on software to complete extremely complex models, on site assessments to be signed off on. You wait in labs and airports, on calls, in lobbies. So what to do with all that waiting? Sometimes, you let the mind wander. It may just take you to geotechnical p... »

Congratulations, Joel Sprague and Grace Hsuan

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Two of the geosynthetics field’s most respected figures, Joel Sprague and Grace Hsuan, were honored on Thursday, June 15, at the ASTM International Committee D35 on Geosynthetics meetings in Toronto. JOEL SPRAGUE TRI Environmental‘s Senior Engineer Joel Sprague received the ASTM Award of Merit, a prestigious honor that earns him the title of Fellow. In a release from ASTM, Committee D3... »

Global Waste Management Symposium 2018 Abstracts Deadline

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The biennial Global Waste Management Symposium (GWMS) offers international, comprehensive, critical content and research. The 2018 edition of the Global Waste Management Symposium will be held 11 – 14 February 2018 in Indian Wells, California. The organizers remind all interested parties that the deadline for abstracts is June 21. GLOBAL WASTE MANAGEMENT SYMPOSIUM TOPICS Enhanced Landfill Te... »

PODCAST: Robert Bowers on Geosynthetics in Segmental Concrete Pavements

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The Interlocking Concrete Pavement Institute published its Tech Spec 22 this year. The document provides general guidelines on the use of geosynthetics within segmental concrete pavements. ICPI’s Director of Engineering Robert Bowers, P.Eng, spoke to Geosynthetica about the publication and the growing role of interlocking concrete pavement technologies, performance of these systems, sustainability... »

Sprague Earns ASTM Award of Merit for Geosynthetics Work

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ASTM International’s Committee D35 on Geosynthetics will present its highest honor, the ASTM Award of Merit, to C. Joel Sprague, senior engineer for TRI Environmental. The Award of Merit will be presented on Thursday, June 15 as part of the D35 Committee Meeting Week in Toronto. The prestigious award bestows upon him the honorary title of fellow. It is the standards organization’s highest recognit... »

IGS Technical Committee Organizes November Hydraulics Events in NOLA

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Two hydraulics events are coming to New Orleans, Louisiana in November 2017 thank to a technical committee of the International Geosynthetics Society. The engineering professional development gathering will consist of two independent but complementary hydraulics events: a full-day think tank (November 7) followed by two days of technical presentations on coastal and river protection (November 8 &#... »

Geosynthetics Education: A Case Study

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By Preston Kendall – The International Geosynthetics Society has set a goal of getting geosynthetics engineering information into undergraduate civil engineering programs. This is being accomplished in part through the international Educate the Educators program and the newly created Educate the Students program. The larger task of outreach is certainly ambitious.  The fields of civil and geotechn... »

Titan Environmental USA Opens Houston Office

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After a string of product development and research updates, Titan Environmental has announced a new Texas-based office for its US division. Titan Environmental USA has established an office in the Brittmoore Tanner Office Park in Houston. The company reports that industry veterans Robert West and Sonja Wilkerson will head up the location’s sales and administration. Both West and Wilkerson previous... »

PODCAST: Craig Benson on Sedimentation, Dams, and Watershed Health

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Geosynthetica opens its 2017 series of GeoTalk podcasts with a conversation about sedimentation, dams, and watershed health. Our guest is Craig Benson, an International Erosion Control Association Board Member and a division director for the private, non-profit Natural Resources Services in Eureka, California. NRS is a division of the Redwood Community Action Agency. There are more than 1000 commu... »

NZ’s Central Plains Headrace Canal Update: 600,000 Sq M of HDPE Geomembrane

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The ongoing infrastructure works in Canterbury, New Zealand’s ambitious Central Plains Water Enhancement Scheme is centered around a 55m-high dam and affiliated storage and diversion canals. Up to 60,000 ha (148,230 acres) of land will be irrigated by the project. The Rakaia and Waimakariri Rivers would be connected the 280 million cubic meter-capacity reservoir via a 56km-long headrace canal. The... »

Reinforcing India’s First Vertical Expansion of a Landfill

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The city of Vapi in the state of Gujarat, India, has a deep industrial history, with chemicals, pesticides, dyes, textiles, and other sectors active in the municipal area. Though such heavy industrial activity presents environmental challenges, Vapi is excelling due to its sustained effort over the last decade to continuously elevate its environmental performance. One of the signature projects in ... »

REVIEW: 2nd International Geosynthetics in Road Construction

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The 2nd international Geosynthetics in Road Construction conference was held May 19 in Moscow. Key sponsors for the event included Maccaferri, NAUE, Thrace Group, Bohnenkamp AG, and New Ground. Machina-TST sponsored a special session on “Evaluation of Geosynthetic Quality in Road Construction.” MAXConference, the organizer, reports that the event participants included companies focused on design, ... »

IGS Brasil to Celebrate 20 Years of Activity with Special Program

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One of the world’s most active chapters of the International Geosynthetics Society was created 20 years ago. This year, when IGS Brasil members gather for the chapter’s annual meeting, a special program, open to all, will be added to recognize the anniversary milestone. The June 22 program for this 7th IGS Brasil Geosynthetics Conference and Annual Meeting will feature a presentation by Prof. Enni... »

Engineering Professors: Educate the Educators Applications Due June 1

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The deadline for engineering professors to apply for a seat in the International Geosynthetics Societey’s non-commercial Educate the Educators program (4 – 5 December 2017, Kingston, Ontario) is approaching. All interested engineering professors must submit their application by June 1 to IGS North America. APPLY ONLINE The two-day geosynthetics training program delivers practical engineering... »

EurAsian Geotextiles Symposium 2017 Program Released

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The international nonwovens association EDANA and the China Nonwovens and Industrial Textiles Association (CNITA) have partnered to develop the EurAsian Geotextiles Symposium 7 – 8 June 2017 at the Regent Hotel in Beijing. The program for the event, which will be held under the auspices of the International Geosynthetics Society, has been released. It includes addresses from IGS Past Preside... »

SOBRATEMA Summit 2017 Includes Geosynthetics Module

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From June 7 to 9, professionals in construction, engineering, and equipment will gather in Sao Paulo, Brazil at the co-located events of BW Expo 2017, Construction Expo 2017 (International Fair of Buildings and Infrastructure Works), M & T Parts and Services 2017 (Congress of Technology and Management of Equipment for Construction and Mining), and the SOBRATEMA Summit 2017. The multi-event gat... »

Edana Publishes Geotextiles Seminar Presentation Videos

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During INDEX 17, one of the world’s largest gatherings for nonwoven material presentations and exhibition, the organizers (Edana) once again held a geotextiles seminar. The presentations from the April 6 event have been made available free for viewing online. These presentations include the Q&A sessions that followed. Each video module allows you to move to any point by powerpoint slide. The p... »

Geosynthetic Reinforcement in CCR Surface Impoundment Closures

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By John D. Herrmann, Bruce A. Lacina, P.E., and Stephan M. Gale, P.E. – In-place closure of coal combustion residual surface impoundments presents numerous challenges. Common methods of capping include placing 0.46 m (1.5 ft) of a compacted clay soil cap with an additional 0.15 m (0.5 ft) of vegetated cover. Geomembranes and geosynthetic clay liners are often considered as viable, cost-effective o... »