Infrasense was in western Massachusetts this past week completing a suite of tests along the abutments of a bridge to quantify and map deterioration, as well as identify concrete compressive strength, rebar spacing, and rebar depth.
Infrasense completed a subsurface survey to map the location and position of an oil/water separator and drainage basin structure that had its access lids paved over during construction at the site. The rapid NDE survey consisted of using a portable, GPR Survey System manufactured by GSSI, Inc. to identify and map out the locations so…
#TBT In 1996, Infrasense worked with UMass Amherst testing railroad tracks to detect fouling in the ballast and deterioration in the wood ties using ground penetrating radar (GPR). Initial testing was done on a test track at the UMass Amherst lab and then equipment was mounted to a HiRail vehicle for field testing on a stretch…
Infrasense supported the research team at Northeastern University in developing a survey vehicle system to automatically detect and process surface and subsurface roadway defects. The project, entitled VOTERS (Versatile Onboard Traffic Embedded Roaming Sensors), is part of NIST’s Technology Innovation Program, and focuses on the subsurface sensing of pavements and bridge decks. Some of the…
Infrasense completed a subsurface pavement structure investigation of both directions of a 1-mile long viaduct on Interstate 93, just north of Boston. This viaduct, adjacent to the Leonard P. Zakim Bridge, leads directly into Boston, so minimal traffic disruption of this corridor is a priority. Infrasense used a high-speed ground penetrating radar (GPR) survey to detect…