Lightweight Foamed Concrete Subgrade for Heavy Haul Railway

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Lightweight Foamed Concrete (LWFC) is being investigated by the Railway Engineering Research Institute (RERI) in China as a potential subgrade foundation at bridge transition...

INDEX 2020 Geosynthetics Seminar Announced

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The triennial INDEXTM global nonwoven event from Edana will be held 20 - 23 October 2020 in Geneva Switzerland. (NOTE: These represent new dates...

Bases and Subbases for Concrete Pavement Performance

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From the GAP 2019 transportation conference proceedings: In "Design and Construction of Bases and Subbases for Concrete Pavement Performance," Shreenath Rao, Hesham Abdualla, and...

GeoU 2020 Networking and Technical Tour Schedule

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This article has been UPDATED (12 March 2020) to reflect the event’s new dates. GeoU 2020 co-locates five high-level, geosynthetics short courses and multiple engineering networking events, 16...
Asphalt treated base from FHWA-HIF-16-005

The Design of Optimum Asphalt Content of Asphalt-Treated Bases

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From the GAP 2019 transportation engineering conference: Danniel Rodriguez, Jose Garibay, and Soheil Nazarian from the Center for Transportation Infrastructure Systems (University of Texas...
Pavement image, moving vehicle perspective

The Influence of Sloped Shoulders on Pavement Responses

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Slope stability analysis is a common design problem in geotechnics and thus, several slope stability methods using classical limit equilibrium analysis are available. In...
APLT from Ingios Geotechnics

Geostructural Characterization of Foundation Materials Using Automated Plate Load Testing

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Structural design of highway or airfield pavements or railroads involves assumption of key mechanistic parameter values such as resilient modulus, modulus of subgrade reaction,...

GeoU 2020 Reinforcement Course Adds Zornberg, Tutumluer, MacMillan

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This article has been UPDATED (12 March 2020) to reflect the event’s new dates. The organizers of GeoU 2020's reinforcement course have announced the additions...
Fouled Ballast feature image

Permanent Deformation and Stiffness of Fouled Ballast

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Fouled ballast results in the degradation of mechanical properties of ballast and railway track instability. Seasonal dry-wet cycles increase the severity of the situation....
Fouled Ballast article feature image - railroad tracks at TTCI

Estimation of Soil-Water Characteristic Curves in Fouled Ballast

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Dr. Stacey Kulesza, P.E., Robert Sherwood, and Dr. Michelle Berry, P.E. exam fouled ballast and soil-water characteristic curves, in this latest share from the...

Implementing Pavement Preservation in Pavement Management Systems

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During the GAP 2019 transportation engineering conference, W. Jeremy Robinson, P.E. of the US Army Engineer Research and Development Center (ERDC) presented on work...
EcoLine brand image from HUESKER

EcoLine Delivers Durability in a Recycled PET Fiber Product

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Welcome to a new Geosynthetica series on manufacturing and innovation! We begin with the first of a few looks at how geosynthetic companies are...
Crushed base course production

Development of a 3/4-Inch Minus Crushed Base Course Specification

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In the latest addition to our continuing series of articles developed out of the GAP 2019 transportation engineering conference proceedings, we follow Eli Cuelho,...
Roadway embankment feature images - failure and repair

Roadway Embankment Reconstruction after Extreme Weather

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Composite reinforcement systems that combine geosynthetics with different facing systems and supports (steel mesh, soil anchors, etc.) have grown substantially in use. These systems...
Full-Scale Trafficking testing at TRI Environmental in South Carolina

Full-Scale Trafficking of Geosynthetic-Reinforced Road Sections

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In the latest addition to our GeoAmericas series of articles, Joel Sprague and Jay Sprague of TRI Environmental’s large-scale outdoor research laboratories in South...
INTERVIEW: Rajib Mallick on Geosynthetic-Reinforced Chip Seal

INTERVIEW: Mallick on Geosynthetic-Reinforced Chip Seal

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A few years ago, I had the opportunity to interview Dr. Rajib Mallick of Worcester Polytechnic Institute (WPI) who was about to deliver multiple...
Highway retaining wall during construction - Image by NAUE Geosynthetics

Implementation of Geotechnical Asset Management

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While bridge and pavement conditions receive much of the media attention and legislative directives for transportation agencies, the value and performance of other assets...
Flooded road image

Unsaturated Analysis of Water Flow in Granular Layers of Inundated Pavements

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Climate change has created less predictable precipitation and in many cases more intense precipitation events. This influx of water flow is a significant challenge...
Photo of geocell in stormwater controls

Geosynthetics in Stormwater Controls and Hydraulic Engineering

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This article has been UPDATED (12 March 2020) to reflect the event’s new dates. The inaugural GeoU 2020 co-locates five high-level short courses. Four of...
U.S. Air Force of C-130 on runway, photo by Master Sgt. Joseph Swafford/Released

Evaluation of Geocell Reinforced Backfill for Airfield Pavement Repair

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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...
Geosynthetic Reinforced Soil Structures Image from Strata Systems

Bernardi to Lead Reinforced Soil Structures Course

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This article has been UPDATED (12 March 2020) to reflect the event’s new dates. Geosynthetic reinforced soil structures (GRSS) have had a highly beneficial impact...
Deformation Behavior Feature Image - From Figure 1

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

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Prajwol Tamrakar, Mark H. Wayne, and David J. White present field tests and results with Automated Plate Load Testing (APLT) to determine the permanent...
US Air Force photo of airfield inspection

Assessment of Historical Army Airfield Pavement Condition Data

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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...

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...
Microphone image, GAP 2019

GAP 2019 Reset the Transportation Dialogue

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How do overloaded trucks impact the near- and long-term performance of roadways? How should we manage runways in karst environments? What is the impact...

Latest article

Sediment Retention Devices - Photo of 7351 testing

Characterizing Sediment Retention Devices with ASTM Methods

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By Joel Sprague and Jay Sprague – Sediment retention devices include silt fence, wattles, filter logs, compost socks, and various types of stormwater inlet...

Hydropower Project Realizes Huge Savings with Reinforced Soil

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The newly constructed Arkun Dam hydropower facility on the Çoruh River (Turkey) would have been considerably more expensive if conventional concrete walls were used along the edges of the power station. NAUE Geosynthetics profiles the project and the reinforced earth option that was selected and which saved 40% on the cost for this portion of the project.
UN Sustainable Development Goals

Sustainable Development Goals and Geosynthetics

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This April, Geosynthetica is promoting 30 Days of Earth Day (#30DaysEarthDay). Each day we will publish stories on the intersections between geosynthetics and environmental...
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