About Us
Our Story
SGI has been involved with the testing and evaluation of all types of geosynthetic interfaces since 1987. The laboratory has been at the forefront in the development of testing procedures that are currently being used by the industry to evaluate various geosynthetic interfaces. SGI laboratory staff includes top professionals holding advanced degrees in geotechnical, environmental, and polymer engineering.
SGI has: (i) worked with the majority of the geosynthetic manufacturers throughout their various stages of product development; (ii) conducted design/performance and quality control/quality assurance evaluations for numerous design/engineering firms; and (iii) conducted workshops for ASTM and the EPA on the testing and evaluation of all types of geosynthetic interfaces.
- Professional Specialists
- Novel Solutions
- Quality Assurance Guaranteed
- Decades of Experience
CEO & Founder: Dr. Zehong Yuan
CEO: Dr. Zehong Yuan
Ph.D., Civil Engineering | Materials Testing & Geosynthetics Specialist
Dr. Zehong Yuan is an accomplished civil engineer with a Ph.D. from the University of New Mexico and over 35 years of professional experience. He is a recognized expert in materials testing, geosynthetics, and geotechnical engineering, with a proven track record of delivering innovative solutions for infrastructure projects across the public and private sectors.
Throughout his career, Dr. Yuan has led and contributed to numerous large-scale engineering projects, focusing on the evaluation and performance of construction materials, soil behavior, and geosynthetic applications. His deep expertise ensures quality, safety, and sustainability in civil infrastructure development.
Dr. Yuan continues to be an active contributor to industry standards and best practices, known for his analytical rigor, hands-on field experience, and commitment to engineering excellence.
What We Offer As a GSI Accredited Labratory
Geosynthetic Pullout & Connection
- Constant Rate of Displacement Evaluations
- Constant Load (long-Term) Evaluations
- Dynamic/Impact Load Evaluations
- Masonry Block Connection Evaluations
- Masonry Block-to-Block Shear Evaluations
- Constant Load (long-Term) Evaluations
- Dynamic/Impact Load Evaluations
Geosynthetic Index + Tension & Seam
- Wide-Width Strip and Seam Tensile Properties
- Grap, Trap, and Tear Strengths
- CBR Puncture Strength
- Multi-Axial Tension Test
- Large-Diameter Hydrostatic Pressure Test
Direct Shear Tests
- Soil-Geosynthetic Interfaces
- Geosynthetic-Geosynthetic Interfaces
- Large-Scale Soil Shear Strength
Compression
- Compressive Strength of Geosynthetics
- Compressive Strength of Liner Systems
- Measurement of Deformation (Strain) Within Liner Systems
- Stiffness of Synthetic Pipes and Sheet Piles
Special Testing + Research & Development
- Performance Test Methods Development
- High Strength Material Testing
- Polymer Material Evaluations
- Failure Analysis
- Test Equipment Development / Fabrication
- Field Performance Test Evaluations
- New Product Development / Evaluations
