DYWIDAG-Systems International (DSI) is America’s leading manufacturer & supplier of specialist ground support products to the underground coal & metalliferous mining sectors. They also are one of the suppliers of hollow core or self-drilling soil nails.
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Loadtest, Inc.
A full-service deep foundation testing company specializing in bidirectional load testing using the Osterberg Cell (O-cell) method. Visit Loadtest, Inc.
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Association of Environmental and Engineering Geologists (AEG)
Professional society for engineering geologists and environmental geologists. Visit Association of Environmental and Engineering Geologists (AEG)
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Triggs Technologies
Development, manufacture, and sale of the Wildcat dynamic cone penetrometer, which economically and continuously measures strength, CBR, and N-values of soils to 25-foot depths. Visit Triggs Technologies