Ground Penetrating Radar (GPR) systems - GSSI

 

GPR inspection of concrete structures

Ground Penetrating Radar for Concrete Inspection

  • Overview
  • Rebar Locating
  • Conduits
  • PT Cables
  • Slab Thickness
  • Voids
  • Concrete Cover

GPR for Concrete Inspection

Cutting and coring experts and construction professionals require a reliable, non-destructive means to locate targets within concrete structures prior to drilling, cutting or coring. The industry’s widest range of concrete inspection antennas ensures that StructureScan is optimized for one's particular application. StructureScan is the tool of choice of concrete professionals based on ease of use, field-proven durability, and accuracy for locating rebar, post-tension cables and conduits.

Concrete Sawing & Drilling

ASTM
ASNT

Using GPR to Locate Rebar

Concrete and construction professionals use ground penetrating radar to safely locate structures within poured concrete prior to drilling, cutting or coring. Take advantage of locating targets in real time, with only single-sided access required.


3D Data set (top) showing rebar mat 6 inches on center with a target (labeled in blue) attached to a piece of rebar. 2D data set (bottom) showing double rebar mat.

Locating rebar in concrete slab with GPR

Trace Conduits In Concrete Slabs With GPR

Detect what lies beneath the surface before cutting or coring concrete. StructureScan allows concrete and construction professionals to safely identify conduit locations, therefore avoiding costly or dangerous hits.

Data set illustrates multiple plastic and metal conduits within a suspended slab. Note the
well-defined bottom of the slab.

Locating conduits in concrete with GPR

Establish Location and Depth of Post-Tension Cables in Concrete with GPR

StructureScan helps concrete professionals and contractors find the location and depth of post-tension cables. Let StructureScan identify the characteristics of the survey area, such as where the cables drape, for added safety.

2D data set collected with a 1600 MHz antenna and SIR 3000. Data shows a reinforced concrete deck with rebar, post tension clusters and a well-defined bottom of slab.

Locate PT cables with StructureScan GPR

Detect the Thickness of a Concrete Slab with GPR

Contractors and engineers alike use StructureScan to determine the thickness of suspended or on-grade concrete slabs.

2D data set collected with a 1600 MHz antenna and
SIR 3000. Data set shows a well-defined bottom of suspended concrete slab.

GPR survey to determine slab thickness

Detect Voids in a Concrete Slab with GPR

Concrete professionals and engineers are interested in detecting the presence of voids that can impact the structural stability of a concrete slab.

Data collected with a SIR 3000 and a 900 MHz antenna.

GPR survey to locate voids in concrete

Use GPR for Concrete Condition Assessment

Engineers and concrete professionals use concrete cover information to determine if reinforcement bars are protected from environmental effects, and to identify areas in which the cover is non-compliant.

The data set illustrates depth to rebar in a concrete slab. Data collected with a 1600 MHz antenna and a SIR 3000.

GPR survey to assess concrete cover condition

 
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