Infrasense Carries Out Ground Penetrating Radar (GPR) Pavement Thickness Survey of State Route 384 Section in Georgia

Infrasense conducted a non-destructive survey and report of SR-384 in Habersham County and White County, GA. The project provided the client with continuous thickness data of asphalt and underlying base layers along the wheel-paths of each lane.

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Infrasense, Inc.

Feb 15, 2022, 10:00 ET


HABERSHAM & WHITE COUNTY, Ga., Feb. 15, 2022 /PRNewswire-PRWeb/ -- Infrasense conducted a vehicle-based GPR pavement thickness survey and report for a 7-mile stretch of SR-384 in Habersham County and White County, GA. Within this section of SR-384, there was a single travel lane in each direction, as well as a brief stretch of bi-directional turn lane. The project provided the client with tabular and graphical results plotted at a 5-ft interval along the wheel-paths of each lane, with each point linked to precise GPS coordinates. These datasets help visualize how the constructed layers of the roadway change in thickness along the length of each lane, and also identified areas of settlement and potential moisture intrusion. 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 was made up of a 1 GHz horn antenna and a SIR 30 control unit, both manufactured by GSSI in Nashua, NH. The final report included a quantitative summary of average layer depths in each lane, along with visual plots showing the sub-surface strata along the length of the section.

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. The data is processed and analyzed using proprietary internally developed software specifically designed for pavement and bridge assessments.

This past year, Infrasense evaluated the pavement profile and condition of over 2500 miles of pavement across 30 unique projects including nondestructive testing of highways in California, Connecticut, Georgia, Idaho, Indiana, Massachusetts, Maryland, Minnesota, New York, Oklahoma, South Carolina, Tennessee, Virginia, and Vermont. Infrasense methods have addressed a variety of pavement structures including asphalt over granular base, composite pavements, continuously reinforce concrete pavements (CRCP), jointed plain concrete pavements (JPCP), and jointed reinforced concrete pavements (JRCP).

Media Contact

Lori McCormick, Infrasense, Inc., 7812811686, [email protected]

SOURCE Infrasense, Inc.