SSI is staffed with over a twenty density technicians, trained and experienced in performing density testing for all types of aggregate/soil materials.  All technicians have successfully completed Ferris State University’s Density Technology course and have also passed courses related to nuclear gauge safety training and hazardous materials.

Our office utilizes Troxler 3440 Surface Moisture-Density Gauges in accordance with MDOT requirements and maintains their calibration annually.

SSI technicians are familiar with MDOT’s Standard Specifications for Construction and the Density Control Handbook and understand the location, frequency, and density requirements associated with the various pay items and project incorporated materials.


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