Infrasense Performs Ground Penetrating Radar (GPR) Survey of Pavement Structure near East Greenwich, Rhode Island

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For the latest job in an exciting 2018 lineup, Infrasense conducted a non-destructive survey and report on the right lane and shoulder of a 5- mile section of Rt. 2 in the state of Rhode Island. The project provided the client with 4 sets of data showing where concrete was detected under the asphalt pavement as opposed to a granular base.

The project provided the client with 4 sets of data showing where concrete appears to be present under the asphalt pavement versus an aggregate base.

In early April, Infrasense conducted a non-destructive survey and report for 10 lane miles of a section of Route 2, in Rhode Island. The project provided the client with 4 sets of data showing where concrete appears to be present under the asphalt pavement versus an aggregate base. The survey was conducted at driving speed with no closures, no disruption to traffic, and zero impact to the integrity of the road.

The GPR data collection system included a pair of 1 GHz horn antennas and a SIR 30 control unit, both manufactured by GSSI in the United States. The final report included a quantitative table of segments or roadway defined by mile posts along by 4 different wheel paths, along with visual plots showing the structure type along the 5- mile stretch.

The GPR pavement surveys are carried out according to ASTM D4748-10. The resulting data shows a cross-sectional slice of the pavement strata at various offsets. Each slice includes the surface, and any material change in the first few feet below the surface.

About Infrasense, Inc.

Since 1987, Infrasense, Inc. has applied advanced technologies to address the most difficult challenges in subsurface scanning. Infrasense's engineers extract critical information using non-destructive methods from a diverse range of structures. In addition to providing ongoing subsurface evaluation services to clients across the country, the firm has also conducted numerous research programs to advance the field of subsurface detection and nondestructive evaluation. To learn more about Infrasense and the services we provide, visit our website: http://www.infrasense.com

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Lori McCormick
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