Firm Profile

American Petrographic Services, Inc.(APS) is an employee owned Minnesota corporation specializing in the consulting and forensic evaluation of aggregates, concrete, masonry, stone and related construction materials. With its corporate office in St. Paul, Minnesota, APS has grown in size and reputation through solving problems for a large national and international client base. APS, an affiliate company of American Engineering Testing, Inc., was incorporated in 1990 and represents the vision of its founders to establish a speciality organization dedicated to forensic identification and resolution of material deficiencies through petrographic and related methodologies. This vision was realized when APS was requested to assist in the damage evaluation of the Pentagon reinforced concrete frame after the terrorist air-strike of September 11, 2001.

Scott Wolter- President and Gerard Moulzolf and Richard Stehly-Vice Presidents recognized a market need for a firm with unique expertise to rapidly assess, evaluate and diagnose materials which have or are in the process of undergoing failure. The strength of APS is the expertise of its staff and the ability to properly and quickly identify material deficiencies. Structures or materials in failure mode(s) mandate timely problem identification and assessment. Once a problem is identified, professional geologists and engineers can suggest repair strategies for corrective action.

It has been said that “A picture is worth a thousand words” and this is especially true with respect to the APS work product. To complement our staff's expertise, APS has assembled state-of-the-art diagnostic tools including binocular and polarized light microscopes, x-ray diffractometers, and scanning electron microscopy. The optical microscopes include photographic and video capability to capture magnified views of distress or causative features within the subject material. The digital photographs assist the client, owner, designer, suppliers or legal parties in better understanding issues involved with a failure.

For reliable study outcomes and client confidence, APS is the only non-governmental petrographic firm with national accreditation to the standards of ISO 17025 “General Requirements for the Competence of Testing and Calibration Laboratories.” The ISO standard not only addresses work procedures, but measures the competence of the technical staff performing the work.