Materials Services

Construction Engineering & Monitoring (click to learn more)

Observation of construction operations by an experienced engineer or engineering technician is the most effective method of detecting construction materials problems, identifying inappropriate construction methods or assessing future performance of constructed components. In addition, many designs and remediation methods must be modified in the field based on observed conditions unique to each situation or not readily identifiable by prior exploration.

Construction Field Testing (click to learn more)

Quality control testing of materials delivered to the construction site or at the fabrication shop is an integral element of confirming substantial compliance with project specifications and code requirements. Soil, concrete, asphalt, steel, grout, mortar, aggregates, and other materials are either tested at the site using field test methods or sampled at the site for later testing in the laboratory.

Special Inspections (click to learn more)

Special Inspections are required by Building Codes for soil, foundations, concrete, masonry, wall panels, structural steel, wood, EIFS and fire proofing testing. The required level of inspection depends on the characteristics of the structure, seismic exposure, and public safe considerations.


Structural Steel/Metals Services (click to learn more)

Welded and bolted connections in metal frame structures commonly require confirmation of design compliance during construction. GEM utilizes certified technicians to evaluate bolted connections visually (load indicator washers, twist-off spline or turn-of-the-nut methods) or with a calibrated torque wrench using a Skidmore Wilhelm device. Welded connections are evaluated with visual, ultrasonic (UT), magnetic particle, dye penetrant or radiographic methods.

Forensic Services (click to learn more)

Assessments are required to determine causative factors when structural systems, earth structures, pavements, construction materials or other materials have not performed in the manner expected or when failures occur.  Collectively GEM has over 200 years of materials testing, engineering and construction experience in a broad spectrum of disciplines, construction procedures and material types. This experience combined with our full range of field and laboratory testing services allow GEM to conduct effective, evidence based forensic assessments when problems arise.

Laboratory Testing (click to learn more)

GEM has a complete in-house laboratory for soils, materials and product testing to determine important physical properties of construction and earth materials including: strength, compaction, deformation, compressibility, and dynamic response. Our facility includes load frames and test stands for testing both common materials (e.g. concrete specimens) and special materials such as  signage, roof anchors, weld qualification coupons and many other materials or products.