Texas Research International, Inc.

TRI/Environmental, Inc. (TRI) is an independent, third party, geosynthetics firm providing geosynthetics testing and research services to the international community. TRI is unaffiliated with any manufacturer or engineering firm, and thus provides non-competitive services to regulators, manufacturer, engineering firms, contractors and installers.

TRI provides laboratory conformance/verification testing as well as performance related studies. In addition to routine index testing in accordance with ASTM, ISO, BS, DIN and GRI test methods, TRI also provides standardized interface friction, permeability, creep and stress-rupture, transmissivity, gradient ratio, UV-resistance, chemical resistance, and accelerated time-temperature creep and stress rupture testing.

TRI's personnel are active throughout the world's standards development organizations and routinely provide short courses, seminars and tailor made training services to those learning about geosynthetics.

Many of TRI’s services are listed below:

Conformance/Verification Testing	Interface Friction/Slope Stability Testing
In-Plant Sampling / Inspection	Same-Day Seam Testing
Forensics / Investigations	Geotechnical (soil/rock) Testing
Erosion Control Testing	Durability Testing
Connection/Pull-out Testing	High Strength Material Testing
Large-Scale Compression/Puncture	Clogging Potential
Creep / Stress Rupture Testing	Material Specification Review Services
Recycled Plastics Services	Installation Damage Testing
Unsaturated Soils Testing	Short Courses Training