GeoWire for June 8, 2020
Start the week with the latest in the geoengineering world. Here's the GeoWire conversation for the week of June 8. WORK SMARTER.
BIG PROJECTS
Nevada might soon host the largest solar...
3-Minute Podcast Update: Virtual Events
Geosynthetica's editor Chris Kelsey checks in on the growth of virtual events. This is the GeoUpdate from GeoTalk for May 27.
With the spread of the COVID virus around the...
Geosynthetics Protect Polar Environments
Climate change has elevated the global dialogue on how to manage our polar regions. Their ecosystems are unique and fragile. Their ice sheets hold 99 percent of the world’s...
The Relative Sustainability Case for Geosynthetics in Roadways
The Geosynthetic Institute opened 2019 with its White Paper 41: “Relative Sustainability (i.e., Embodied Carbon) Calculations With Respect to Applications Using Traditional Materials Versus Geosynthetics.” The independent organization has returned...
Characterizing Sediment Retention Devices with ASTM Methods
By Joel Sprague and Jay Sprague – Sediment retention devices include silt fence, wattles, filter logs, compost socks, and various types of stormwater inlet protectors. They are a widely...
SCM Performance Testing in Stormwater Management
By Joel Sprague and Jay Sprague – The use of stormwater management technologies to drain developed areas with an emphasis on engineered infiltration systems and storage devices has expanded...
Lightweight Foamed Concrete Subgrade for Heavy Haul Railway
Lightweight Foamed Concrete (LWFC) is being investigated by the Railway Engineering Research Institute (RERI) in China as a potential subgrade foundation at bridge transition zones. It has the characteristics...
INDEX 2020 Geosynthetics Seminar Announced
The triennial INDEXTM global nonwoven event from Edana will be held 20 - 23 October 2020 in Geneva Switzerland. (NOTE: These represent new dates since this story was published.)...
Bases and Subbases for Concrete Pavement Performance
From the GAP 2019 transportation conference proceedings: In "Design and Construction of Bases and Subbases for Concrete Pavement Performance," Shreenath Rao, Hesham Abdualla, and Thomas Yu, P.E. use a...
The Design of Optimum Asphalt Content of Asphalt-Treated Bases
From the GAP 2019 transportation engineering conference: Danniel Rodriguez, Jose Garibay, and Soheil Nazarian from the Center for Transportation Infrastructure Systems (University of Texas – El Paso) examine asphalt-stabilized...
The Influence of Sloped Shoulders on Pavement Responses
Slope stability analysis is a common design problem in geotechnics and thus, several slope stability methods using classical limit equilibrium analysis are available. In these methods, applied surcharge load...
Geostructural Characterization of Foundation Materials Using Automated Plate Load Testing
Structural design of highway or airfield pavements or railroads involves assumption of key mechanistic parameter values such as resilient modulus, modulus of subgrade reaction, dynamic modulus, and track modulus....
GeoU 2020 Reinforcement Course Adds Zornberg, Tutumluer, MacMillan
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 of Dr. Jorge Zornberg, P.E....
Permanent Deformation and Stiffness of Fouled Ballast
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. In this latest addition to...
Estimation of Soil-Water Characteristic Curves in Fouled Ballast
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 GAP 2019 transportation engineering conference...
Implementing Pavement Preservation in Pavement Management Systems
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 he and his ERDC colleague...
EcoLine Delivers Durability in a Recycled PET Fiber Product
Welcome to a new Geosynthetica series on manufacturing and innovation! We begin with the first of a few looks at how geosynthetic companies are engineering greener products. HUESKER’s EcoLine...
Development of a 3/4-Inch Minus Crushed Base Course Specification
In the latest addition to our continuing series of articles developed out of the GAP 2019 transportation engineering conference proceedings, we follow Eli Cuelho, a senior engineer with TRI...
Roadway Embankment Reconstruction after Extreme Weather
Composite reinforcement systems that combine geosynthetics with different facing systems and supports (steel mesh, soil anchors, etc.) have grown substantially in use. These systems enable very efficient construction of...
INTERVIEW: Mallick on Geosynthetic-Reinforced Chip Seal
A few years ago, I had the opportunity to interview Dr. Rajib Mallick of Worcester Polytechnic Institute (WPI) who was about to deliver multiple papers at the annual TRB...
Implementation of Geotechnical Asset Management
While bridge and pavement conditions receive much of the media attention and legislative directives for transportation agencies, the value and performance of other assets are also important to the...
Unsaturated Analysis of Water Flow in Granular Layers of Inundated Pavements
Climate change has created less predictable precipitation and in many cases more intense precipitation events. This influx of water flow is a significant challenge for infrastructure planning, with and...
Geosynthetics in Stormwater Controls and Hydraulic Engineering
The inaugural GeoU 2020 co-locates five high-level short courses. Four of the courses are concurrently held engineering classes and the fifth is a half-day marketing course for sales and...
Evaluation of Geocell Reinforced Backfill for Airfield Pavement Repair
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...
Bernardi to Lead Reinforced Soil Structures Course
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...
