Delta Geophysics Inc. is committed to providing our clients
with solutions to the critical problem of locating
utilities and reinforcing bar within poured concrete slabs.
Ground Penetrating Radar (GPR) technology is typically the
methodology of choice, and has replaced X-ray imaging
because of health concerns associated with radiation.
Concrete GPR can save on concrete cutting or coring time,
provide a safe working environment for personnel, and
minimize equipment and property damages.
Concrete GPR is a non-destructive and non-invasive method,
works fast, and is generally accepted as the industry
standard for most concrete investigation. Reliablity is
greatly improved when experienced personnel use a
high-frequency GPR antenna with maximum band width. Even
then success is not assured and should not be taken for
granted. This is because concrete is not homogeneous, and
slabs contain various objects such as rebar,
metallic/non-metallic conduits, post-tension cables and
other embedded and overlapping features. As a result
concrete GPR is subject to shadowing and signal attenuation
effects that can degrade survey results.
We feel the personal at Delta are especially sensitive to
the risks inherent in drilling a finished slab, and have the
knowledge and experience to communicate unique survey
concerns to the project manager on the jobsite.
Concrete mark-outs can never be fool-proof, and are a great
example of where reliance on inaccurate information can be
more harmful than having no information at all. So if you
want state-of-the-art equipment and experienced personnel
that are as concerned about the project as you are, give us
a call today. We will glad to discuss project requirements
with you and determine if Concrete GPR will work for you.
1Delta
operates a variety of geophysical equipment for
investigation of the shallow subsurface, including Ground
Penetrating Radar (GPR), Electromagnetic Induction (EM),
Seismic, Borehole Logging and Resistivity methods.
Located in Eastern Pennsylvania, Delta operates primarily
in Pennsylvania, New Jersey, New York, Delaware, Maryland,
and Ohio.
