Embedded Files
Ground-Penetrating Radar is a geophysical, nondestructive testing technique that allows for the detection of embedded objects, material interfaces, and internal characteristics in structural and geological materials. JS Building Diagnostics utilizes the latest equipment specially developed for use on structural concrete and software that offers real-time assessment, sophisticated post-processing capabilities and 3D tomographic imaging of structural elements. The GPR is an invaluable tool in JS Building Diagnostics' structural investigations.
Methodology
Methodology
The GPR technique involves the transmission of electromagnetic waves along discrete longitudinal scans at the surface of a structural element or geological material. Electromagnetic signals are optically reflected from material interfaces of varying dielectric constant along the propagation path of the wave. JS Building Diagnostics utilizes a range of GPR antennas with different operating frequencies to provide efficient, cost-effective surveys at various penetration depths.
Common Application
Common Application
Structural Concrete
Structural Concrete
Detection of steel reinforcement, prestressing / post-tensioning strand, metal and plastic conduit, and other embedded objects
Approximate thickness of measurement of members
Assessment of as-built reinforcement and geometry to assist in structural analysis and load capacity evaluation
Identification of internal conditions such as poor consolidation, voiding and material interfaces
Masonry Walls
Masonry Walls
Identification of vertical reinforcing bars, horizontal bond beam and joint reinforcement, and embedded roof anchorages
Assessment of grouted and ungrouted conditions in concrete block cavities
Slab-on-grade and Pavements
Slab-on-grade and Pavements
Detection and location of mild steel reinforcement and joint dowels
Assessment of approximate slab thickness
Identification of material interfaces in layered systems
Assessment of the presence of and extend of voiding at slab to sub-base interfaces
Subsurface Investigation
Subsurface Investigation
Assessment of location and approximate depth of buried utlity pipe and structures
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