GeoTesting Express (GTX), provides comprehensive geotechnical laboratory and field testing services of soil, rock, geosynthetics and other materials below the ground surface. GTX determines the physical and mechanical properties of underground material for site characterization, geotechnical design, quality control and performance assessment purposes.
Utilizing state-of-the-art automated testing equipment, advanced processes and automation, GTX provides clients with fast turnaround and accurate test results. GTX continues to offer uncompromised quality, reducing our clients’ risk by providing confidence that the testing is being performed correctly and according to published standards.
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Vice President and Director of Testing Services
125 Nagog Park
Acton, MA 01720
978 635 0424
Representative Projects Project Showcase »
Baltimore Red Line, Downtown Tunnel & Cooks Lane Tunnel, Maryland
GeoTesting Express, Inc. (GTX) provided a wide range of rock testing services in support of the design of two rock tunnels, the Downtown Tunnel and the Cooks Lane Tunnel. GTX performed over 1,500 rock tests for the project. Tests included: uniaxial compression tests, triaxial tests, CERCHAR abrasivity tests, punch penetration tests, petrographic analyses, NTNU / SINTEF drillability tests, Pulse velocities and elastic constant tests, direct shear tests, splitting tensile tests, point load tests, slake tests, rebound hammer tests, unit weight, porosity and specific gravity tests.
The Third Catskill & Delaware Aqueduct, New York
GeoTesting Express, Inc. (GTX) provided an extensive, high quantity rock testing program in support of the preliminary design effort being undertaken by the joint venture of Hatch Mott MacDonald/Malcolm Pirnie, which included; Elastic Moduli of Rock in Uniaxial Compression, Unconfined Compression Strength of Rock , Splitting Tensile, Slake Durability, Point Load Index of Rock, CERCHAR Abrasivity, Total Hardness, Schmidt Hammer, Axial Swelling of rock, Unit Weight, Porosity and Specific Gravity, Petrographic Analysis, X-Ray Diffraction Analysis, and Drillability testing.
Pueblo Viejo Gold Mine, Dominican Republic
GeoTesting Express, Inc. (GTX) provided rapid soil testing services in support of design of dams, plant site foundations, and transmission lines. GTX was able to accept these samples without delay as it maintains a foreign soil entry permit with the United States Department of Agriculture (USDA) and we were able to turn the required testing around in exceptional time and provide our client with test results as promised.
Geotechnical Investigation for Proposed Nuclear Power Plant, Eastern Europe
GeoTesting Express (GTX) supported Paul C. Rizzo Associates, Inc. (Rizzo) by performing geotechnical laboratory testing. Testing was performed to help characterize the stability of subsurface materials that could affect structures at the site under static, dynamic and existing conditions. GTX was originally contracted to perform cyclic triaxial testing but our ability to process and test a vast amount of samples in a short period of time caused our scope to expand considerably. GTX provided rapid turnaround of nearly 400 tube samples.