Enhanced Wicking Geotextile Emerges from an Engineering Challenge

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The Alaska Department of Transportation brought a specific engineering challenge to TenCate Geosynthetics: the need to enhance lateral drainage from roadway subgrades to minimize frost boils. The company came back not only with a design solution but a very unique geotextile, one which is now finding many different applications. Mark Sikkema of TenCate Geosynthetics discusses the development and us... »

Geocell-Supported Design Restores Indian Highway

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By Strata Geosystems (India) – Several days of torrential rain in March 2016 completely destroyed a stretch of National Highway 44 (NH-44) in India. The roadway is the main throughway for commercial traffic to the State of Tripura. The failed road zone was located on the Assam side of the Assam-Tripura border. A geocell-supported road solution was specified to repair the damage quickly. The ... »

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... »

New Geocomposite Drainage System for Roadways

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Roadway integrity can be undermined by poor drainage on the surface and in the subgrade of the road. The new GSE RoaDrain™ geocomposite drainage system has been engineered to provide high compressive strength (> 50,000 psf), a permeability greater than 10x that of drainage stone, and long-term performance under roads and at expansion joints to provide an effective capillary break that stops the... »

VIDEO: Service Life Advantages of Road Building on Geosynthetics

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In its latest animation, TenCate Geosynthetics profiles how road building with geosynthetics can extend service lives up to 10x. The 1 minute, 37 second video shows design with TenCate Mirafi® RSi materials versus designs without geosynthetics over a simulated 50-year period. The video uses animation to show weather and traffic patterns cycles and how different roadway systems—with geosynthetics, ... »

6-Year Update: Frost Heave Mitigation for Alaskan Highway

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By TenCate Geosynthetics – A woven geosynthetic (Mirafi® H2Ri) was installed on the Dalton Highway in northern Alaska. The work was part of a research project being conducted by the University of Alaska-Fairbanks. The heavily instrumented test section, which sought to reduce frost heave and boils, was installed on a stretch of highway called Beaver Slide. Beaver Slide was a well-known problem spot... »

VIDEO: Subsoil Drainage Systems

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On its YouTube channel, Geofabrics Australasia has published a new video detailing the advantages of subsoil drainage systems, such as the Megaflo® system. The rigid, high-flow velocity panel drain is utilized in improving roadway integrity and maintaining the playability of sports fields. The subsoil drainage solution is also quite strong. With its crush resistance, it is even used in mining oper... »