TEXTILES.ORG
Engineered earth with greywater systems
March 10th, 2022
Propex incorporates a system of engineered earth with greywater irrigation on slope at residential site in Malibu, Calif. By Jeff Hoilman, P.E., market development manager, GeoSolutions, Propex Operating Co. LLC FIGURE 1 Initial installation of the ARMORMAX 75 Slope Stability System in Malibu, Calif. Photograph courtesy of Propex Operating Co. LLC The increasing need for sustainable design […]
New anchorage and connection strength tests for geosynthetics
October 1st, 2021
FIGURE 1 Field anchor pullout test Connections can have a significant impact on the performance of exposed geosynthetic systems. The connection must be considered as a limiting strength factor and evaluated by the same performance standards as the material alone. If used in critical structures with design lives of more than 30 years, the geosynthetic […]
Resilient flood mitigation protects Louisiana levee system
September 24th, 2021
By Lee Pierce, Vice President of Engineered Systems and Business Development, Propex Operating Co. LLC Worker installing the ARMORMAX system on a New Orleans levee. Photograph courtesy of Propex Operating Co. LLC Sixteen years to the day after Hurricane Katrina slammed into Louisiana, Hurricane Ida made landfall just 40 miles (64 km) down the coast. In […]
Long-term HPTRM solutions for climate change resilience
August 26th, 2021
By Kathryn Grant, Marketing Manager, GeoSolutions, Propex Operating Co. LLC The University of Arizona Solar Zone at Tech Park, Tucson, Ariz. Photography courtesy of Propex Operating Co. LLC In August 2021, the Biden administration released more than $3.46 billion to support climate change resilience. The funds, which will be distributed through the Federal Emergency Management Agency (FEMA) […]
Driving earth anchors in adverse conditions
July 6th, 2021
By Ben Campbell, P.E., Propex Earth anchors come in all shapes and sizes and are made from a variety of materials including steel, aluminum, stainless steel and ductile iron. Earth anchors are also used for many different purposes. Propex primarily uses percussion-driven engineered earth anchors (EEA) to create an artificial deep root system for ARMORMAX. The ARMORMAX […]
Stabilizing Oyster Lake’s outfall
February 1st, 2021
The completed outfall with sea oats beginning to grow Preserving a unique ecosystem with an environmentally friendly solution By Drew Loizeaux Coastal dune lakes are freshwater lakes located within 2 miles (3.2 km) of an ocean coastline. These rare ecosystems are only found in a handful of locations around the globe, including Madagascar, New Zealand, […]
A geosynthetic wrap-face vegetated wall system
October 1st, 2020
For highway embankment construction By Stanley M. Miller and Drew Loizeaux A recent creek enhancement project to facilitate the passage of bull trout in Pend Oreille County of northeastern Washington state required removal of a 6-foot (1.8-m) diameter concrete culvert (Figure 1), realignment of a well-traveled county road and a new 58-foot (17.7-m) span bridge. […]
Propex GeoSolutions receives carbon footprint verification for PYRAMAT 75 HPTRM
August 20th, 2019
Propex GeoSolutions recently became the first high performance turf reinforcement mat (HPTRM) manufacturer to verify the carbon footprint of its erosion control solutions. The cradle-to-grave carbon footprint of PYRAMAT® 75 HPTRM is 2.7 kgCO2e per 1m2 of material, which is equivalent to driving about seven miles. “This verification is another piece of the sustainability puzzle,” […]
Streambank restoration using engineered bank stabilization
June 1st, 2019
By Jeffery T. Hoilman and Stanley M. Miller FIGURE 1 Mountain Creek streambank restoration—September 2018. View looking upstream nine months after installation. Mountain Creek flows through the community of Red Bank near Chattanooga, Tenn., to the Tennessee River. Mountain Creek has been identified by the Tennessee Department of Environment and Conservation (TDEC 2018) as a […]
The magic of water and geosynthetics
February 1st, 2019
Water is a fundamental issue in many projects using geosynthetics. From erosion control to reservoir liners and covers, from landfill leachate pond barriers to coal ash dewatering, handling water and the effects of water are considerations nearly every engineer employing geosynthetics considers. Geosynthetics can effectively manage water applications of erosion control, reinforcement, barriers, filtration and […]