Infrasense recently used Ground Penetrating Radar (GPR) to complete a pavement structure evaluation of local roads in county in Northern California. The GPR data was analyzed to determine the thickness of the bound and unbound material layers.
FRESNO, Calif., Nov. 13, 2024 /PRNewswire-PRWeb/ -- Infrasense recently conducted a Ground Penetrating Radar (GPR) pavement structure evaluation in a county in Northern California. The GPR data collection system consisted of a 1-GHz horn antenna system manufactured by GSSI, Inc. of Nashua, NH, attached to a vehicle moving at normal driving speeds. The vehicle was also equipped with an electronic distance-measuring instrument (DMI) mounted to the rear wheel, providing synchronous distance data as the GPR data was collected. A Trimble GPS unit provided high resolution, differentially corrected geo-spatial information. Both the data collection and recording were controlled by the SIR-4000 GPR system operated from within the survey vehicle.
The GPR data was analyzed to identify the thickness of the surface asphalt concrete (AC) and underlying base layer. The GPR data also revealed the pavement cross-section, including the individual pavement layers and their corresponding thickness. The GPR pavement layer thickness results were compared to core data, which showed a less than 10% difference, on average. The continuous and accurate GPR layer thickness information provides significant benefits to transportation agencies towards coming up with comprehensive pavement rehabilitation designs.
About Infrasense, Inc.
Since 1987, Infrasense, Inc. has applied advanced technologies to address the most difficult challenges in subsurface scanning. Infrasense's engineers nondestructively extract critical information 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
Media Contact
Lily Strickler, Infrasense, Inc., 781-281-1686, [email protected], http://www.infrasense.com
SOURCE Infrasense, Inc.
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