Tested for:
Tear resistance of engineered turf in machine direction and cross direction.

Research Facilities:
SGI (Soil-Geosynthetics Interaction Specialists) and Geosynthetics Institute (GSI)

Testing Standard(s):
ASTM D 4595, Standard Test Method for Tensile Properties of Geotextiles by the Wide-Width Strip Method

Tested for:
Resistance of the engineered turf systems to severe wind forces.

Research Facilities:

1. Georgia Tech Research Institute Aerospace, Transportation and Advanced Systems Laboratory in Atlanta, Georgia
   • Flat model to evaluate aerodynamic lift and drag forces
2. Florida International University Wall of Wind Experimental Facility at the International Hurricane Research Center in Miami, Florida
   • Rooftop model with parapets to evaluate the “worst-case scenario” wind forces on a rooftop installation
3. ViGYAN, a private research facility located in Hampton, Virginia since 1979
   • Flat model to evaluate severe wind gust conditions
4. Iowa State Wind Simulation and Testing (WiST) Laboratory (2018-2021)
   • 3D scaled landfill models to evaluate the wind pressures present on slopes and at slope transitions

Tested for:
Protection of underlying subgrade and infill retainment in extreme conditions.

Research Facility:
Erosion testing has been performed at several third-party laboratories including TRI Environmental, Colorado State University, and Penn State University. Most notably, TRI Environmental performed multiple large-scale hydraulic tests to evaluate specified aggregate infill mobilization in ClosureTurf during extreme conditions.

Testing Standard(s):
ASTM D 6459 Standard Test Method for Determination of Rolled Erosion Control Product (RECP) Performance in Protecting Hillslopes from Rainfall-Induced Erosion and ASTM D 6460, Standard Test Method for Determination of Rolled Erosion Control Product (RECP) Performance in Protecting Earthen Channels from Stormwater-Induced Erosion.

Tested for:
Quality of stormwater runoff from ClosureTurf.

Research Facility:
Published case study: De Abreu, R. and Franklin, J. (2014). “Design and installation of a geosynthetic final cover utilizing artificial turf in Louisiana.” Proceedings of the 7th International Congress on Environmental Geotechnics, Melbourne, Australia, November 10-14, 2014. pp. 1397–1404.

Tested for:
Interface shear strength.

Research Facility:
SGI (Soil-Geosynthetics Interaction Specialists)

Testing Standard(s):
ASTM D 5321, Standard Test Method for Determining the Shear Strength of Soil-Geosynthetic and Geosynthetic-Geosynthetic Interfaces by Direct Shear

Tested for:
Fire resistance and fire propagation impedance.

Research Facility:
Richgels Environmental Services

Testing Standard(s):
ASTM E 108, Standard Test Methods for Fire Tests of Roof Coverings

Tested for:
Product integrity when subjected to freeze and thaw conditions.

Research Facility:
Testing, Engineering and Consulting Services, Inc. (TEC Services) (an AASHTO R18, ANS/ISO/IEC 17-25:2005 and Army Corps of Engineers accredited laboratory). The system was also tested by Dr. George R. Koerner at the Geosynthetic Institute (GSI).

Testing Standard(s):
ASTM C 666, Resistance of Concrete to Rapid Freezing and Thawing

Tested for:
ClosureTurf’s resistance to natural degradation, specifically due to UV exposure.

Research Facilities:
Atlas Material Testing Solutions in Arizona, The Geosynthetic Institute, and SGI (Soil-Geosynthetics Interaction Specialists).

Testing Standard(s):
ASTM G90, Standard Practice for Performing Accelerated Outdoor Weathering of Materials Using Concentrated Natural Sunlight, ASTM G 151, Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources, ASTM G 154, Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials and ASTM D 7238, Standard Test Method for Effect of Exposure of Unreinforced Polyolefin Geomembrane Using Fluorescent UV Condensation Apparatus.

Tested for:
Puncture resistance when subjected to loading.

Research Facilities:
TRI Environmental and SGI (Soil-Geosynthetics Interaction Specialists)

Testing Standard(s):
ASTM D 5514, Standard Test Method for Large-Scale Hydrostatic Puncture Testing of Geosynthetics and ASTM D 6241, Standard Test Method for Static Puncture Strength of Geotextiles and Geotextile-Related Products Using a 50-mm Probe (CBR Puncture)