Long-lasting road rehabilitation with Polyfelt in England

August 6th, 2021

Photograph courtesy of TenCate Geosynthetics Europe The A617 Millennium Way, a road in Nottinghamshire County (England), which was opened in the year 2000, featured cracks and surface damage after 15 years of use and therefore had to be renovated. Asphalt Grid Systems Ltd. proposed TenCate Polyfelt PGM-G100/100 as a cost-efficient and technically excellent solution.  Missing adhesion between layers before treatment Core samples had shown that the structural integrity of the bituminous layers was good. However, […]

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“Product Selector” for road reconstruction with TenCate Polyfelt

May 13th, 2021

The digital specification assistant for asphalt pavement interlayers from TenCate Geosynthetics enables product selection for asphalt pavement interlayers. Based on four simple criteria, the best technical solution can be proposed for maintenance work. The selection of the optimal product is an essential key for the success of effective conservation measures using asphalt pavement interlayers. With its digital specification assistant, TenCate Geosynthetics has made this selection possible via a professional tool available on the TenCate website www.tencategeo.eu. The online tool asks the user four simple questions and draws on the answers to define the optimum product system for sustainable […]

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Concrete interlayers

April 1st, 2021

Q: We are interested in using a geotextile as an “unbonded concrete interlayer” over existing concrete pavement to float the new slab over deteriorated pavement, instead of a thin asphalt layer. Do you have any guidance for us in this regard? A: Over the past several years, 16-ounce-per-square-yard (542-g/m2) nonwoven needlepunched geotextiles have been used […]

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Enhanced moisture management of pavement systems through capillary suction

June 1st, 2020

By René B. Laprade and John M. Lostumbo Moisture within pavement layers is a principal cause of pavement deterioration (Cedergren 1994, Christopher and McGuffey 1997, Henry and Holtz 2001). Specific problems associated with moisture include (1) reduction in pavement strength caused by excess water in the base course layers and/or the subgrade soils, (2) shrinking […]

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Using geosynthetics in flexible airport pavements

June 1st, 2019

By Benjamin Mahaffay, Jeremy Robinson, Jeffrey Gagnon and Gregory Norwood FIGURE 1 Post-test excavated cross section In recent years, there has been an increasing interest to improve pavement structures through mechanical stabilization by incorporating geosynthetic products within the structure. The Geosynthetic Materials Association (GMA) has identified eight categories of commercially available geosynthetics: geotextiles, geogrids, geonets, […]

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Impact of geogrids on concrete highway pavement performance

April 1st, 2019

The benefits of using geogrids for constructing flexible pavements is well documented. Additionally, the study prepared by White and Vennapusa (2017) discusses the method for field performance verification of the geogrid mechanically stabilized layer. However, this article looks beyond using geogrid mechanically stabilized layers for asphalt pavement design and examines using multiaxial geogrids within concrete […]

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Geocomposite waterproofing for Washington weather

April 1st, 2019

The wet weather in Washington state is a bane to the region’s travel infrastructure, plaguing the pavement with perpetual problems.  The westbound 3-mile (5-km) stretch across the US 2/I-5 interchange from Bickford Avenue in Everett, Wash., was in particular need of repair. A valuable pipeline for business and commuting, the bridged area transported an average […]

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Panorama

April 1st, 2019

GMA honors U.S. senator as ‘leader of the year’ The Geosynthetic Materials Association (GMA) honored Sen. Sheldon Whitehouse, D–R.I., with the GMA Leader of the Year Award during the fall Lobby Day in Washington, D.C., on Nov. 14, 2018. “I’m honored to be recognized in this way by the Geosynthetic Materials Association,” Sen. Whitehouse said, […]

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MnDOT tests structural synthetic fibers for use in thin concrete overlays

January 30th, 2019

Concrete pavements usually measure 8 to 15 inches thick. For many of these pavements, designers recommend placing dowel bars at the joints during the pour to assist the transfer of wheel load from heavy commercial and agricultural vehicles across concrete slab joints. The Minnesota Department of Transportation (MnDOT) has found that dowel bars are not […]

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Modeling demonstrates benefit of geogrid-reinforced aggregate base

December 21st, 2018

Improved modeling of geogrid for use with the Minnesota Department of Transportation’s pavement design software, MnPAVE Flexible, will allow pavement designers to simulate field tests of stiffness and resiliency in pavements over bases with and without geogrid. The department, known as MnDOT, is using modeling results from a recent study to develop a design input that quantifies the […]

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